HUSWELL Oil Change Kit for Cummins Onan 5500/7000 RV Generators — 122-0836 Oil + 140-3116 Air Filter (HGJAA/HGJAB/HGJAC)

HUSWELL’s oil change kit combines the 122-0836 oil filter and 140-3116 air filter to service Cummins Onan 5500 and 7000 RV generator models quickly and correctly.

This kit is built for owners and technicians who need the correct replacement filters for HGJAA, HGJAB and HGJAC-series Onan generators, including Marquis Gold/RV QG and Marquis Platinum/RV QG EFI variants. The package contains one oil filter and one air filter sized to match factory specifications, helping maintain airflow and oil filtration without guesswork. It’s a straightforward parts swap designed to restore filtration performance after routine maintenance.

Which generator models will this kit fit?

The HUSWELL kit fits a range of Cummins Onan RV generators commonly found in class A and travel-trailer applications. Compatibility includes the 5500 and 7000 series and specific HGJAA, HGJAB and HGJAC configurations. Always cross-check your model stamping or part numbers before ordering to ensure a precise match.

• Compatible with Cummins Onan 5500 and 7000 RV generators
• Fits HGJAA, HGJAB, HGJAC series and related Marquis Gold/RV QG models
• Also suitable for Marquis Platinum/RV QG EFI and Microlite/RV QG variants
• Verify carburetor and generator label photos against product images before purchase

What’s included and why those parts matter?

This oil change kit includes one 122-0836 oil filter and one 140-3116 air filter — the two components that most affect engine cleanliness and breathing. The oil filter captures contaminants that shorten engine life, while the air filter prevents dust and debris from entering the intake. Replacing both at the same service interval restores protective function and supports reliable generator operation.

• 1 × 122-0836 oil filter — designed to trap metal and soot from engine oil
• 1 × 140-3116 air filter — engineered for proper airflow and particle filtration
• Packaged as a matched pair for single-service convenience
• Sold as shown in the main product image for visual verification

How easy is installation and what should I check?

Installing the filters is a routine maintenance task for most RV owners or mechanics with basic tools. The air filter typically slides into a housing and secures with a cover; the oil filter screws onto the filter mount and should be tightened to the manufacturer’s torque spec. Before installation, compare your existing parts and carburetor appearance to the kit images to confirm fitment.

• Remove old filters and clean housings before installation
• Lubricate oil-filter gasket and hand-tighten per torque guidance
• Confirm air-box seating and gasket condition for a proper seal
• Dispose of used oil and filters according to local regulations

Who this kit is for: RV owners, fleet technicians, and service shops seeking a correct, ready-to-install filter pair for Cummins Onan 5500 and 7000 generators. If you maintain Marquis Gold, Marquis Platinum, or Microlite Onan RV generators and want OEM-style filtration without hunting multiple part numbers, this kit is a practical option. Always compare photos and part numbers on your generator before purchasing to ensure compatibility.