Description
Perform routine engine service on a compatible gasoline-powered Cummins Onan RV generator with this UGP maintenance kit. Designed for select RV QG 5500 and 7000 generators in the HGJAA, HGJAB, and HGJAC series with Spec A–M, the kit includes filters, spark plugs, synthetic engine oil, a service sticker, and an oil-filter socket.
The air filter helps maintain clean engine airflow, the oil filter removes contaminants from circulating oil, and the fuel filter helps protect the gasoline-delivery system. Two replacement spark plugs support dependable ignition, while the included 15W-40 full synthetic oil provides supplies for the oil-change portion of routine service.
Kit Includes:
• 1 UGP 140-3116 replacement air filter
• 1 UGP 122-0836 replacement oil filter
• 1 replacement gasoline fuel filter
• 2 replacement spark plugs
• 2 one-quart bottles of 15W-40 full synthetic motor oil
• 1 service-reminder sticker
• 1 oil-filter socket with 3/8-inch drive
Other tools, funnels, wipes, and maintenance supplies are not included unless shown or specified by the seller.
Product Features:
• Comprehensive RV generator maintenance kit
• Designed for select gasoline HGJAA, HGJAB, and HGJAC models
• Compatible with designated Spec A–M applications
• Includes filtration, ignition, and oil-change components
• Air filter supports clean engine airflow
• Oil and fuel filters help remove system contaminants
• Two spark plugs support dependable engine ignition
• Oil-filter socket assists with filter removal and installation
Compatible Generator Series:
• Cummins Onan RV QG 5500
• Cummins Onan RV QG 7000
• HGJAA gasoline models, Spec A–M
• HGJAB gasoline models, Spec A–M
• HGJAC gasoline models, Spec A–M
This complete kit is intended for gasoline-powered applications. LP configurations do not use the included gasoline fuel filter.
Part-Number Information:
• Air-filter replacement: 140-3116, 0140-3116
• Oil-filter replacement: 122-0836, 0122-0836
Verify the fuel-filter and spark-plug part numbers against the generator operator’s manual before ordering.
Product Information:
• Brand: Universal Generator Parts
• Product type: RV generator maintenance kit
• Generator application: Select Onan RV QG 5500 and 7000 models
• Engine series: Select HGJAA, HGJAB, and HGJAC
• Specification range: A–M
• Fuel application: Gasoline
• Oil type: 15W-40 full synthetic motor oil
• Oil quantity: 2 quarts
• Tool drive size: 3/8 inch
• Condition: New
• Fitment type: Equipment-, specification-, and fuel-specific
• Classification: UGP aftermarket replacement components
Maintenance Guidance:
Follow the maintenance schedule and procedures in the generator operator’s manual. Turn off the generator, disconnect shore power and automatic-start systems, isolate the starting battery as directed, and allow the engine to cool before servicing.
Install the air filter in the correct orientation. Lightly coat the new oil-filter gasket with clean engine oil and tighten the filter according to the manufacturer’s instructions. Use the included socket only if it correctly fits the filter.
Close the gasoline supply before replacing the fuel filter. Note its flow direction and inspect the surrounding fuel lines and clamps. Check both spark-plug gaps before installation and tighten the plugs to the specified torque.
Add the 15W-40 oil gradually while monitoring the dipstick. Do not assume the engine requires all two quarts. After service, inspect the oil and fuel systems for leaks, stop the generator, and recheck the oil level.
Verify the generator’s complete model, specification letter, serial number, fuel type, and approved oil viscosity before ordering.












