{"id":3908,"date":"2025-11-19T07:47:19","date_gmt":"2025-11-19T07:47:19","guid":{"rendered":"https:\/\/dieselairfiltration.com\/?p=3908"},"modified":"2026-03-12T07:18:31","modified_gmt":"2026-03-12T07:18:31","slug":"s551-4-heavy-duty-primary-air-filter-for-perkins-diesel-generators-bowei-filter-factory","status":"publish","type":"post","link":"https:\/\/dieselairfiltration.com\/ru\/s551-4-heavy-duty-primary-air-filter-for-perkins-diesel-generators-bowei-filter-factory\/","title":{"rendered":"S551\/4 Heavy-Duty Primary Air Filter for Perkins Diesel Generators | Bowei Filter Factory"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3908\" class=\"elementor elementor-3908\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e3e3fa8 e-flex e-con-boxed e-con e-parent\" data-id=\"e3e3fa8\" data-element_type=\"container\" 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elementor-mark-required\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label\">\r\n\t\t\t\t\t\t\t\t\u042d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u0430\u044f \u043f\u043e\u0447\u0442\u0430\t\t\t\t\t\t\t<\/label>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"\u042d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u0430\u044f \u043f\u043e\u0447\u0442\u0430\" required=\"required\">\r\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label\">\r\n\t\t\t\t\t\t\t\t\u0417\u0430\u043f\u0440\u043e\u0441\t\t\t\t\t\t\t<\/label>\r\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\"><\/textarea>\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\r\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u041e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c<\/span>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t<\/button>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"ru\"\/><\/form>\r\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a63e9ed e-con-full e-flex e-con e-child\" data-id=\"a63e9ed\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t<div class=\"elementor-element elementor-element-6a64d9e e-con-full e-flex e-con e-child\" data-id=\"6a64d9e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e001743 elementor-widget elementor-widget-ha-post-info happy-addon ha-post-info\" data-id=\"e001743\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ha-post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"ha-inline-items ha-icon-list-items ha-post-info\">\n\t\t\t\t\t<li class=\"ha-icon-list-item elementor-repeater-item-d1c84c7 ha-inline-item\" itemprop=\"about\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"ha-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-tags\" viewbox=\"0 0 640 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.941 225.941L286.059 14.059A48 48 0 0 0 252.118 0H48C21.49 0 0 21.49 0 48v204.118a48 48 0 0 0 14.059 33.941l211.882 211.882c18.744 18.745 49.136 18.746 67.882 0l204.118-204.118c18.745-18.745 18.745-49.137 0-67.882zM112 160c-26.51 0-48-21.49-48-48s21.49-48 48-48 48 21.49 48 48-21.49 48-48 48zm513.941 133.823L421.823 497.941c-18.745 18.745-49.137 18.745-67.882 0l-.36-.36L527.64 323.522c16.999-16.999 26.36-39.6 26.36-63.64s-9.362-46.641-26.36-63.64L331.397 0h48.721a48 48 0 0 1 33.941 14.059l211.882 211.882c18.745 18.745 18.745 49.137 0 67.882z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"ha-icon-list-text ha-post-info__item ha-post-info__item--type-terms\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"ha-post-info__terms-list\">\n\t\t\t\t<a href=\"https:\/\/dieselairfiltration.com\/ru\/by-application\/\" class=\"ha-post-info__terms-list-item\">By Application<\/a>, <a href=\"https:\/\/dieselairfiltration.com\/ru\/by-brand\/\" class=\"ha-post-info__terms-list-item\">\u041f\u043e \u0431\u0440\u0435\u043d\u0434\u0443<\/a>, <a href=\"https:\/\/dieselairfiltration.com\/ru\/by-application\/generator-set-air-filters\/\" class=\"ha-post-info__terms-list-item\">\u0412\u043e\u0437\u0434\u0443\u0448\u043d\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b \u0434\u043b\u044f \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u043d\u044b\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043e\u043a<\/a>, <a href=\"https:\/\/dieselairfiltration.com\/ru\/by-brand\/perkins-air-filters\/\" class=\"ha-post-info__terms-list-item\">\u0412\u043e\u0437\u0434\u0443\u0448\u043d\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b Perkins<\/a>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8e08e96 e-con-full e-flex e-con e-child\" data-id=\"8e08e96\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d408782 elementor-widget elementor-widget-ha-post-info happy-addon ha-post-info\" data-id=\"d408782\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ha-post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"ha-inline-items ha-icon-list-items ha-post-info\">\n\t\t\t\t\t<li class=\"ha-icon-list-item elementor-repeater-item-d1c84c7 ha-inline-item\" itemprop=\"about\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"ha-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-tags\" viewbox=\"0 0 640 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.941 225.941L286.059 14.059A48 48 0 0 0 252.118 0H48C21.49 0 0 21.49 0 48v204.118a48 48 0 0 0 14.059 33.941l211.882 211.882c18.744 18.745 49.136 18.746 67.882 0l204.118-204.118c18.745-18.745 18.745-49.137 0-67.882zM112 160c-26.51 0-48-21.49-48-48s21.49-48 48-48 48 21.49 48 48-21.49 48-48 48zm513.941 133.823L421.823 497.941c-18.745 18.745-49.137 18.745-67.882 0l-.36-.36L527.64 323.522c16.999-16.999 26.36-39.6 26.36-63.64s-9.362-46.641-26.36-63.64L331.397 0h48.721a48 48 0 0 1 33.941 14.059l211.882 211.882c18.745 18.745 18.745 49.137 0 67.882z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"ha-icon-list-text ha-post-info__item ha-post-info__item--type-terms\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"ha-post-info__terms-list\">\n\t\t\t\t<a href=\"https:\/\/dieselairfiltration.com\/ru\/tag\/generator-set-air-filters\/\" class=\"ha-post-info__terms-list-item\">\u0412\u043e\u0437\u0434\u0443\u0448\u043d\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b \u0434\u043b\u044f \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u043d\u044b\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043e\u043a<\/a>, <a href=\"https:\/\/dieselairfiltration.com\/ru\/tag\/perkins-air-filters\/\" class=\"ha-post-info__terms-list-item\">\u0412\u043e\u0437\u0434\u0443\u0448\u043d\u044b\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u044b Perkins<\/a>, <a href=\"https:\/\/dieselairfiltration.com\/ru\/tag\/s551-4-heavy-duty-primary-air-filter\/\" class=\"ha-post-info__terms-list-item\">S551\/4 Heavy-Duty Primary Air Filter<\/a>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-330e47f e-flex e-con-boxed e-con e-parent\" data-id=\"330e47f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bc6b4e4 elementor-widget elementor-widget-text-editor\" data-id=\"bc6b4e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"1177\" data-end=\"1304\">The S551\/4 primary air filter is engineered for <strong data-start=\"838\" data-end=\"864\">Perkins diesel engines<\/strong> and generator sets.<br data-start=\"884\" data-end=\"887\" \/>Bowei Factory produces this model with OEM-grade quality, using heavy-duty metal mesh, uniform filter pleats, and a strong sealing structure to ensure clean combustion and stable performance in industrial environments.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5778817 e-flex e-con-boxed e-con e-parent\" data-id=\"5778817\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-9352275 e-con-full e-flex e-con e-child\" data-id=\"9352275\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-62d23be elementor-widget elementor-widget-heading\" data-id=\"62d23be\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-65c2460 elementor-widget elementor-widget-text-editor\" data-id=\"65c2460\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"1348\" data-end=\"1380\">This filter is commonly used in:<\/p><ul data-start=\"1382\" data-end=\"1567\"><li data-start=\"1382\" data-end=\"1422\"><p data-start=\"1384\" data-end=\"1422\">Perkins industrial diesel generators<\/p><\/li><li data-start=\"1423\" data-end=\"1450\"><p data-start=\"1425\" data-end=\"1450\">Power station equipment<\/p><\/li><li data-start=\"1451\" data-end=\"1488\"><p data-start=\"1453\" data-end=\"1488\">Mining and construction machinery<\/p><\/li><li data-start=\"1489\" data-end=\"1527\"><p data-start=\"1491\" data-end=\"1527\">Continuous-duty power environments<\/p><\/li><li data-start=\"1528\" data-end=\"1567\"><p data-start=\"1530\" data-end=\"1567\">Heavy industrial air intake systems<\/p><\/li><\/ul><p data-start=\"1569\" data-end=\"1643\">It is a direct replacement primary air filter for Perkins intake housings.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79036fa elementor-widget elementor-widget-heading\" data-id=\"79036fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">S551\/4 Production at Bowei Factory<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87938da elementor-widget elementor-widget-text-editor\" data-id=\"87938da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Metal Mesh Forming<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd73b69 elementor-widget elementor-widget-image\" data-id=\"bd73b69\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/S551-4-air-filter-production-metal-mesh-forming-Bowei-Factory-1024x768.webp\" class=\"attachment-large size-large wp-image-4160\" alt=\"Bowei Factory worker forming metal mesh cylinders for S551\/4 air filter production\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/S551-4-air-filter-production-metal-mesh-forming-Bowei-Factory-1024x768.webp 1024w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/S551-4-air-filter-production-metal-mesh-forming-Bowei-Factory-300x225.webp 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/S551-4-air-filter-production-metal-mesh-forming-Bowei-Factory-768x576.webp 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/S551-4-air-filter-production-metal-mesh-forming-Bowei-Factory-16x12.webp 16w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/S551-4-air-filter-production-metal-mesh-forming-Bowei-Factory.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-337ed5b elementor-widget elementor-widget-text-editor\" data-id=\"337ed5b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Full Production Line<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-07c375c elementor-widget elementor-widget-image\" data-id=\"07c375c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Full-Production-Line-1024x768.webp\" class=\"attachment-large size-large wp-image-4161\" alt=\"Full production line for S551\/4 primary air filters at Bowei Factory\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Full-Production-Line-1024x768.webp 1024w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Full-Production-Line-300x225.webp 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Full-Production-Line-768x576.webp 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Full-Production-Line-16x12.webp 16w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Full-Production-Line.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf07378 elementor-widget elementor-widget-text-editor\" data-id=\"bf07378\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Packaging Line<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f93cea4 elementor-widget elementor-widget-image\" data-id=\"f93cea4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Packaging-Line-1024x768.webp\" class=\"attachment-large size-large wp-image-4162\" alt=\"S551\/4 air filter packaging and carton sealing line at Bowei Factory\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Packaging-Line-1024x768.webp 1024w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Packaging-Line-300x225.webp 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Packaging-Line-768x576.webp 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Packaging-Line-16x12.webp 16w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Packaging-Line.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d9a340 elementor-widget elementor-widget-text-editor\" data-id=\"1d9a340\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Warehouse &amp; Inventory<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a47aed elementor-widget elementor-widget-image\" data-id=\"3a47aed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Warehouse-Inventory-1024x768.webp\" class=\"attachment-large size-large wp-image-4163\" alt=\"Inventory of finished S551\/4 primary air filters stored in Bowei Factory warehouse\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Warehouse-Inventory-1024x768.webp 1024w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Warehouse-Inventory-300x225.webp 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Warehouse-Inventory-768x576.webp 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Warehouse-Inventory-16x12.webp 16w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2025\/11\/Warehouse-Inventory.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0e27643 e-flex e-con-boxed e-con e-parent\" data-id=\"0e27643\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d8b279 elementor-widget elementor-widget-heading\" data-id=\"8d8b279\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/dieselairfiltration.com\/ru\/category\/air-filters\/\">\u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5027fb2 e-flex e-con-boxed e-con e-parent\" data-id=\"5027fb2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7524098 elementor-widget elementor-widget-text-editor\" data-id=\"7524098\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table><thead><tr><th>\u042d\u043b\u0435\u043c\u0435\u043d\u0442<\/th><th>\u0426\u0435\u043d\u0438\u0442\u044c<\/th><\/tr><\/thead><tbody><tr><td><strong>\u0412\u043d\u0435\u0448\u043d\u0438\u0439 \u0434\u0438\u0430\u043c\u0435\u0442\u0440<\/strong><\/td><td><strong>351.6 mm<\/strong><\/td><\/tr><tr><td><strong>\u0412\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439 \u0434\u0438\u0430\u043c\u0435\u0442\u0440<\/strong><\/td><td><strong>240.7 mm<\/strong><\/td><\/tr><tr><td><strong>Length \/ Height<\/strong><\/td><td><strong>406.4 mm<\/strong><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b0d8c59 e-flex e-con-boxed e-con e-parent\" data-id=\"b0d8c59\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d268b18 elementor-widget elementor-widget-heading\" data-id=\"d268b18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/dieselairfiltration.com\/ru\/category\/air-filters\/\">\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0444\u0438\u043b\u044c\u0442\u0440\u043e\u0432<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a640a39 e-flex e-con-boxed e-con e-parent\" data-id=\"a640a39\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b3009f3 elementor-widget elementor-widget-text-editor\" data-id=\"b3009f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"n4sEPd\"><div class=\"QFw9Te BLojaf\"><p data-start=\"1609\" data-end=\"1816\">The S551\/4 is built with a heavy-duty steel outer mesh, reinforced inner support, and high-efficiency composite filter media.<br data-start=\"1734\" data-end=\"1737\" \/>We adopt the same production principles used in OEM heavy machinery filtration:<\/p><ul data-start=\"1818\" data-end=\"2012\"><li data-start=\"1818\" data-end=\"1851\"><p data-start=\"1820\" data-end=\"1851\">Uniform HV-grade filter paper<\/p><\/li><li data-start=\"1852\" data-end=\"1884\"><p data-start=\"1854\" data-end=\"1884\">Strong metal end-cap forming<\/p><\/li><li data-start=\"1885\" data-end=\"1927\"><p data-start=\"1887\" data-end=\"1927\">Even pleat spacing for low restriction<\/p><\/li><li data-start=\"1928\" data-end=\"1958\"><p data-start=\"1930\" data-end=\"1958\">High dust-holding capacity<\/p><\/li><li data-start=\"1959\" data-end=\"2012\"><p data-start=\"1961\" data-end=\"2012\">One-piece sealing structure for easy installation<\/p><\/li><\/ul><p data-start=\"2014\" data-end=\"2176\">All filters are produced in Bowei\u2019s own factory, ensuring consistent quality, short lead time, and stable supply for distributors and generator service companies.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7d94e43 e-flex e-con-boxed e-con e-parent\" data-id=\"7d94e43\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-cd0db27 e-con-full e-flex e-con e-child\" data-id=\"cd0db27\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11d879c elementor-widget elementor-widget-heading\" data-id=\"11d879c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Choose Bowei Factory<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61ef2ec elementor-widget elementor-widget-text-editor\" data-id=\"61ef2ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 data-start=\"2183\" data-end=\"2215\">Bowei Filter Factory provides:<\/h3><ul data-start=\"3036\" data-end=\"3299\"><li data-start=\"3036\" data-end=\"3089\"><p data-start=\"3038\" data-end=\"3089\">In-house production of S551\/4 with stable quality<\/p><\/li><li data-start=\"3090\" data-end=\"3141\"><p data-start=\"3092\" data-end=\"3141\">HV-grade filter media and reinforced metal mesh<\/p><\/li><li data-start=\"3142\" data-end=\"3168\"><p data-start=\"3144\" data-end=\"3168\">Export-ready packaging<\/p><\/li><li data-start=\"3169\" data-end=\"3212\"><p data-start=\"3171\" data-end=\"3212\">Fast delivery with real stock available<\/p><\/li><li data-start=\"3213\" data-end=\"3242\"><p data-start=\"3215\" data-end=\"3242\">OEM customization support<\/p><\/li><li data-start=\"3243\" data-end=\"3299\"><p data-start=\"3245\" data-end=\"3299\">Long-term supply for generator maintenance companies<\/p><\/li><\/ul><p data-start=\"3301\" data-end=\"3412\">We operate complete production lines including cutting, pleating, mesh forming, assembly, and final inspection.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4fa7cfa e-flex e-con-boxed e-con e-parent\" data-id=\"4fa7cfa\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0cc5112 elementor-widget elementor-widget-heading\" data-id=\"0cc5112\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Related Products<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3e6c78d e-flex e-con-boxed e-con e-parent\" data-id=\"3e6c78d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-371edfc elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-posts--thumbnail-top elementor-widget elementor-widget-posts\" data-id=\"371edfc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_columns&quot;:&quot;3&quot;,&quot;classic_columns_tablet&quot;:&quot;2&quot;,&quot;classic_columns_mobile&quot;:&quot;1&quot;,&quot;classic_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:35,&quot;sizes&quot;:[]},&quot;classic_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;classic_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-classic elementor-grid\" role=\"list\">\r\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-7037 post type-post status-publish format-standard has-post-thumbnail hentry category-caterpillar-cat-air-filters category-by-application category-by-brand category-by-engine-brand category-cat-complete-filter-sets category-complete-filter-sets tag-8n-5504-air-filter tag-caterpillar-air-filters tag-industrial-air-filters\" role=\"listitem\">\r\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dieselairfiltration.com\/ru\/cat-8n5504-air-filter\/\" tabindex=\"-1\">\r\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-8n5504-air-filter-detail-300x300.png\" class=\"attachment-medium size-medium wp-image-7038\" alt=\"8N-5504 air filter sealing and inner structure detail\" title=\"\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-8n5504-air-filter-detail-300x300.png 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-8n5504-air-filter-detail-150x150.png 150w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-8n5504-air-filter-detail-768x768.png 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-8n5504-air-filter-detail-12x12.png 12w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-8n5504-air-filter-detail.png 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\r\n\t\t<\/a>\r\n\t\t\t\t<div class=\"elementor-post__text\">\r\n\t\t\t\t<h3 class=\"elementor-post__title\">\r\n\t\t\t<a href=\"https:\/\/dieselairfiltration.com\/ru\/cat-8n5504-air-filter\/\">\r\n\t\t\t\tCaterpillar 8N-5504 Air Filter | CAT Engine Primary Filter Replacement\t\t\t<\/a>\r\n\t\t<\/h3>\r\n\t\t\r\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/dieselairfiltration.com\/ru\/cat-8n5504-air-filter\/\" aria-label=\"Read more about Caterpillar 8N-5504 Air Filter | CAT Engine Primary Filter Replacement\" tabindex=\"-1\">\r\n\t\t\t\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435 \"\t\t<\/a>\r\n\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-7018 post type-post status-publish format-standard has-post-thumbnail hentry category-caterpillar-cat-air-filters category-by-application category-by-brand category-cat-complete-filter-sets category-caterpillar-3406-complete-engine-filter-set tag-6i-2501-air-filter tag-caterpillar-air-filters tag-industrial-air-filters\" role=\"listitem\">\r\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dieselairfiltration.com\/ru\/cat-6i2501-air-filter\/\" tabindex=\"-1\">\r\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-6i2501-air-filter-primary-safety-element-300x300.webp\" class=\"attachment-medium size-medium wp-image-7022\" alt=\"Caterpillar 6I-2501 air filter primary and safety element replacement\" title=\"\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-6i2501-air-filter-primary-safety-element-300x300.webp 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-6i2501-air-filter-primary-safety-element-150x150.webp 150w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-6i2501-air-filter-primary-safety-element-768x768.webp 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-6i2501-air-filter-primary-safety-element-12x12.webp 12w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/cat-6i2501-air-filter-primary-safety-element.webp 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\r\n\t\t<\/a>\r\n\t\t\t\t<div class=\"elementor-post__text\">\r\n\t\t\t\t<h3 class=\"elementor-post__title\">\r\n\t\t\t<a href=\"https:\/\/dieselairfiltration.com\/ru\/cat-6i2501-air-filter\/\">\r\n\t\t\t\tCaterpillar 6I-2501 Air Filter | P532501 RS3504 AF25125M Replacement\t\t\t<\/a>\r\n\t\t<\/h3>\r\n\t\t\r\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/dieselairfiltration.com\/ru\/cat-6i2501-air-filter\/\" aria-label=\"Read more about Caterpillar 6I-2501 Air Filter | P532501 RS3504 AF25125M Replacement\" tabindex=\"-1\">\r\n\t\t\t\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435 \"\t\t<\/a>\r\n\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-6964 post type-post status-publish format-standard has-post-thumbnail hentry category-caterpillar-cat-air-filters category-by-application category-by-brand category-heavy-duty-air-filters tag-142-1340-air-filter tag-caterpillar-air-filters tag-industrial-air-filters\" role=\"listitem\">\r\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dieselairfiltration.com\/ru\/caterpillar-142-1340-142-1403-air-filter\/\" tabindex=\"-1\">\r\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/caterpillar-479-8989-479-8991-excavator-air-filter-300x300.webp\" class=\"attachment-medium size-medium wp-image-6955\" alt=\"Caterpillar 479-8989 479-8991 excavator air filter for CAT 320 323 320GX GC\" title=\"\" srcset=\"https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/caterpillar-479-8989-479-8991-excavator-air-filter-300x300.webp 300w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/caterpillar-479-8989-479-8991-excavator-air-filter-150x150.webp 150w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/caterpillar-479-8989-479-8991-excavator-air-filter-768x768.webp 768w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/caterpillar-479-8989-479-8991-excavator-air-filter-12x12.webp 12w, https:\/\/dieselairfiltration.com\/wp-content\/uploads\/2026\/03\/caterpillar-479-8989-479-8991-excavator-air-filter.webp 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\r\n\t\t<\/a>\r\n\t\t\t\t<div class=\"elementor-post__text\">\r\n\t\t\t\t<h3 class=\"elementor-post__title\">\r\n\t\t\t<a href=\"https:\/\/dieselairfiltration.com\/ru\/caterpillar-142-1340-142-1403-air-filter\/\">\r\n\t\t\t\tCaterpillar 142-1340 \/ 142-1403 Primary Air Filter | CAT 345C 345D 349D C13\t\t\t<\/a>\r\n\t\t<\/h3>\r\n\t\t\r\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/dieselairfiltration.com\/ru\/caterpillar-142-1340-142-1403-air-filter\/\" aria-label=\"Read more about Caterpillar 142-1340 \/ 142-1403 Primary Air Filter | CAT 345C 345D 349D C13\" tabindex=\"-1\">\r\n\t\t\t\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435 \"\t\t<\/a>\r\n\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/article>\r\n\t\t\t\t<\/div>\r\n\t\t\r\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>The S551\/4 air filter is manufactured by Bowei Factory for Perkins diesel generators, using reinforced metal mesh and high-efficiency filter paper to deliver stable airflow and reliable engine protection.<\/p>","protected":false},"author":1,"featured_media":4154,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[375,5,374,7],"tags":[16,695,453],"class_list":["post-3908","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-perkins-air-filters","category-by-application","category-by-brand","category-generator-set-air-filters","tag-generator-set-air-filters","tag-perkins-air-filters","tag-s551-4-heavy-duty-primary-air-filter"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/posts\/3908","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/comments?post=3908"}],"version-history":[{"count":5,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/posts\/3908\/revisions"}],"predecessor-version":[{"id":4166,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/posts\/3908\/revisions\/4166"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/media\/4154"}],"wp:attachment":[{"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/media?parent=3908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/categories?post=3908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dieselairfiltration.com\/ru\/wp-json\/wp\/v2\/tags?post=3908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}