Caterpillar 479-8989 / 479-8991 Honeycomb Air Filter

Product Specifications

ItemSpecification
Product TypeHoneycomb Air Filter
OEM Part Number479-8989 / 479-8991
Compatible EquipmentCAT 320 / 323 / 320GX / GC Excavators
Length15.315 in
Width7.992 in
HeightOEM Standard
Filter MediaComposite filter paper
StructureHoneycomb reinforced mesh
ApplicationExcavators / Construction machinery
BrandBowei Filter Factory

We make high-quality replacement air filters for Caterpillar excavators, designed to replace OEM part numbers 479-8989 and 479-8991.

This honeycomb air filter is widely used on CAT 320, CAT 323, CAT 320GX and CAT 320GC excavators, protecting the engine intake system from dust, sand and airborne contaminants.

Construction and mining machines often operate in extremely dusty environments. A reliable excavator air filter is essential to keep the engine running efficiently and extend service life.

Our filters use high-efficiency composite filter paper and reinforced honeycomb mesh, ensuring strong structure and stable airflow.

Compatible Caterpillar Excavators

This excavator air filter is commonly used in:

  • CAT 320 Excavator

  • CAT 323 Excavator

  • CAT 320GX Excavator

  • CAT 320GC Excavator

These machines are widely used in:

  • Construction sites

  • Mining operations

  • Quarry operations

  • Infrastructure projects

A high-quality CAT excavator air filter helps prevent dust particles from entering the engine and protects key components such as the turbocharger and cylinder liners.

Product Features

Honeycomb Reinforced Structure

The outer honeycomb mesh strengthens the filter element and prevents deformation under high airflow conditions.

High Efficiency Filtration

Composite filter paper captures dust and fine particles efficiently.

Stable Airflow

Optimized pleat structure ensures consistent airflow for diesel engines.

Long Service Life

Designed for heavy-duty environments such as construction and mining sites.

In addition to this model, we also supply a wide range of Caterpillar air filters designed for excavators, diesel generators and heavy-duty construction equipment.

These filters are built to provide reliable engine protection in dusty environments such as construction sites, mining operations and quarry applications.

You can explore our full range of Caterpillar air filters to find the right replacement for your equipment.

Applications

This type of heavy-duty air filter is commonly used for:

  • Excavators

  • Diesel engines

  • Construction equipment

  • Mining machinery

  • Heavy-duty equipment

Cross Reference

Caterpillar 479-8989
Caterpillar 479-8991
CAT 4798989
CAT 4798991

Why Choose Our Air Filters

We make air filters for diesel engines, excavators and heavy equipment.

Our products offer:

  • Stable filtration efficiency

  • Durable filter media

  • Accurate OEM dimensions

  • Reliable supply for distributors

  • OEM customization available

Our filters are widely exported to customers in construction equipment maintenance and spare parts distribution industries.

© 2025 Bowei Filter Factory — Professional manufacturer of diesel generator air filters and Caterpillar replacement filters.