122-0836 OIL FILTER FOR CUMMINS ONAN RV QG 5500 7000 HGJAA HGJAB GENERATOR

iFJF part No.: FJ-0836. Product Overview High-quality replacement oil filter for Cummins Onan RV generators including QG 5500, QG 7000, Marquis Gold, and HGJAA/HGJAB series. Features premium cellulose/synthetic blend filtration media trapping contaminants to 25 microns, silicone anti-drain back valve preventing dry starts, and thick-wall steel canister for RV generator compartment durability. Direct spin-on OEM replacement. Key Features Premium Filtration Media High-efficiency cellulose/synthetic blend traps contaminants while maintaining oil flow for sustained generator operation. Direct OEM Replacement Replaces Cummins Onan 122-0836 identical thread pitch, gasket diameter, and bypass valve settings. Silicone Anti-Drain Back Valve Retains oil in the filter between runs, eliminating damaging dry start wear on generator startup. Heavy-Duty Canister Thick-wall steel resists stone impacts, road debris, and constant vibration in RV generator compartments. Extended Protection Designed for demanding RV generator conditions sustained loads, vibration, and temperature extremes. Compatibility Make Model Year Range Notes Cummins Onan QG 5500 All Years HGJAA / HGJAB Series Cummins Onan QG 7000 All Years HGJAA / HGJAB Series Cummins Onan Marquis Gold 5500/7000 All Years HGJAA / HGJAB Series Specifications Specification Value Part Number 122-0836 (Replacement) Thread Standard Spin-On Filtration Media Cellulose / Synthetic Blend Anti-Drain Back Valve Silicone Micron Rating 25 Micron Nominal Why Choose iFJF RV generators run under heavy loads in harsh conditions. A quality oil filter is the first line of defense. Our 122-0836 replacement delivers OEM-equivalent protection at a better price so you can stick to the 150-hour maintenance interval affordably. Frequently Asked Questions Q: How often change generator oil and filter? A: Cummins Onan recommends every 150 hours or annually. Change every 100 hours in dusty conditions or with heavy use. Q: Will this fit my Onan generator? A: Fits QG 5500, QG 7000, Marquis Gold, and all HGJAA/HGJAB series using 122-0836 filter. Direct spin-on replacement. Q: Is this OEM Cummins? A: High-quality aftermarket replacement meeting OEM 122-0836 specs. Same performance better value than dealer pricing. Q: Why is an anti-drain back valve important? A: Prevents oil draining from filter when generator is off, ensuring immediate pressure on startup and eliminating dry start wear. Q: What oil should I use? A: Cummins Onan recommends SAE 15W-40 diesel-rated oil for most generators. Check owner s manual for your specific model. Related Products Complete generator maintenance: RV Generator Fuel Filter for clean fuel, Generator Spark Plug Set for reliable starting, Generator Air Filter for proper intake. Related Guide 122-0836 Oil Filter Buying Guide & Cross-Reference Complete compatibility list, price comparison, and DIY oil change walkthrough for Onan QG 5500/7000 generators.