Cummins Onan Air Filter 1403280 – Direct-Fit Replacement for Camp Power/QG & MicroLite RV Generators, OEM-Style U.S. Made

CUMMINS NW 1403280 Onan air filter is a direct-fit replacement designed to trap dust and particles for Camp Power/QG and MicroLite/RV QG generator models.

Whether you’re maintaining an RV generator between trips or replacing a worn element during routine service, this Cummins Onan air filter provides an OEM-style fit and compatible performance. Manufactured in the United States, the part matches the original dimensions for easy installation and helps preserve airflow and engine longevity when changed at recommended intervals.

Which generators is this filter compatible with?

This filter is intended for specific Onan generator families used in RV and camping power applications. It fits Camp Power/QG series and MicroLite/RV QG models that require the Cummins 1403280 element. Using the correct model ensures proper sealing and filtration efficiency comparable to the original equipment.

• Fits Camp Power/QG generator models
• Fits MicroLite and RV QG Onan series
• OEM-style dimensions for direct replacement

How do I install the Cummins 1403280 filter?

Installation is straightforward: shut down the generator, allow it to cool, and remove the access cover to expose the air box. Extract the old filter, confirm the housing is clean, then seat the new filter until it seals; reattach the cover and run the generator briefly to verify fit and operation.

• Turn off generator and cool before servicing
• Remove access panel and old filter gently
• Inspect housing for debris then install new element securely

What are the product’s physical and shipping details?

The replacement element ships from the United States and arrives in a compact package suited for spare parts storage. It’s lightweight and sized to match factory specifications so it won’t interfere with installation clearances or generator covers.

• Country of origin: United States
• Package dimensions approximately 8.89 cm × 11.684 cm × 11.938 cm
• Item package weight about 0.181 kilograms

How often should I replace the air filter in my RV generator?

Replacement intervals depend on operating conditions—more frequent changes are needed in dusty or off-road environments. Inspect the element during regular service intervals and replace it when visibly soiled, damaged, or per your generator’s maintenance schedule.

• Check filter each service or after heavy dust exposure
• Replace if clogged, torn, or at scheduled maintenance points
• Keep a spare on hand for long trips or remote use

Who is this for: RV owners, fleet maintainers, and workshop technicians who use Cummins Onan Camp Power/QG or MicroLite/RV QG generators and need a direct-fit replacement air filter. It’s suited for anyone seeking an OEM-compatible element manufactured in the United States that simplifies routine upkeep and helps maintain consistent generator performance while on the road.