Cummins 4938908 Air Filter: Replacement for ISM/QSM 11L Engines

The Cummins 4938908 air filter is a genuine replacement part designed for ISM11 and QSM11 diesel engines

Whether it’s long-haul trucking, marine operations, or generator sets, this 4938908 air cleaner assembly ensures clean airflow, reliable engine performance, and extended service life.

Technical Specifications

ParameterValue
Upper Cover Diameter274 mm
Lower Cover Diameter274 mm
Inner Hole240/274 mm – 95/130 mm
Overall Height293 mm
Net Weight12.8 kg

For users who seek alternative or drop-in options, the 4938908 is cross-referenced to HiFi Filter HR 16969, Walker 90-1302W EverQuiet, as well as upgrade kits combining MPW901034 + MPW401132.”

Note: cross reference identifiers are for reference only. Always verify exact fit and specs before ordering or installing.

Cummins 4938908 air filter for ISM/QSM 11L engines, used in Freightliner, Kenworth, Peterbilt trucks, generators, and marine applications

PU Material Properties

  • Density: 260–280 g/L

  • Shore Hardness: 15–25 A

  • Tensile Strength: ≥0.8 MPa

  • Elongation at Break: ≥200%

  • Compression Set: <20%

  • Rebound Resilience: >50%

This design combines HV filter media with eco-friendly PU technology, making the Cummins 4938908 filter durable and reliable.

Application in Trucks and Equipment

  • The ISM11/QSM11 engines are widely installed in North American trucks, making the 4938908 air filter a critical replacement part for:

    • Freightliner Cascadia, Columbia, Century Class

    • Kenworth T800, W900, T2000

    • Peterbilt 379, 387, 389

    • International 9400i, 9900i, ProStar

    For truck fleets operating in line-haul logistics, bulk transportation, and LTL distribution, this filter ensures consistent engine protection.

Use in Generators and Marine Engines

  • The Cummins QSM11 air filter 4938908 is also trusted in:

    • Diesel generator sets requiring reliable continuous operation

    • QSM11 marine engines used in cargo ships and offshore applications

    In both sectors, the 4938908 replacement filter plays a key role in safeguarding engines against dust, salt, and debris.

Why Choose Our Factory?

  • Premium HV Filter Paper – high dust-holding capacity

  • Eco-Friendly PU – water-foamed, safe, and durable

  • OEM Capability – support for branded and custom requirements

  • Consistent Quality – strict testing for every 4938908 Cummins filter

Target Customers

  • Truck fleet operators (Freightliner, Kenworth, Peterbilt)

  • Generator set users in the U.S., Mexico, Russia

  • Marine operators using QSM11 engines

  • Dealers and wholesalers seeking reliable aftermarket supply

Conclusion

If you operate Freightliner, Kenworth, or Peterbilt trucks with Cummins ISM11 engines, or run QSM11 marine engines and generator sets, the Cummins 4938908 air filter is your best choice for reliable engine protection.

👉 Contact us for OEM-quality 4938908 filters with competitive pricing and fast delivery.。

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