Genuine Cummins Onan canister-style oil filter for Emerald, Marquis, and older gasoline RV generators. Covers BGE, BGEL, NHEL (select specs), BGM, BFA, BGA, BGAL, and BF Power Drawer models. Confirm your model and spec letter before ordering. 90-day limited warranty.
The Cummins Onan 122-0645 is the OEM-specified oil filter for a broad range of Emerald, Marquis, and older gasoline RV generator series — including the Emerald BGE and BGEL, Marquis BGM, and the older BFA, BGA, BGAL, and BF Power Drawer models. It is a canister-style filter designed for use specifically in Cummins Onan RV generators.
Maintenance intervals vary significantly by model and spec letter — from as short as 100 hours on BGA RV models to 200 hours on some older series. Always confirm your generator's complete model code and spec letter using the compatibility table below and your Operator's Manual before ordering.
Tested and designed specifically for Cummins Onan RV generators — meets OEM specifications across Emerald, Marquis, and older gasoline generator series
Canister design provides efficient filtration and a secure seal — protects engine components from oil-borne contaminants throughout the service interval
Covers BGE, BGEL, NHEL (select specs), BGM, BFA, BGA, BGAL, and BF Power Drawer — confirm your specific model and spec letter using the table below
Replacement intervals range from 100 to 200 hours depending on model and spec — refer to the compatibility table and your Operator's Manual for the correct interval
Always confirm using your generator's complete model code and spec letter before ordering. Maintenance intervals vary by model — see the compatibility table below. Note on NHE vs. NHEL: The full NHE (Emerald III) series uses a different oil filter — part 122-0800. Only NHEL (pre-97, Spec F) uses the 122-0645. If your generator is an NHE (not NHEL), order 122-0800 instead. Refer to your Cummins Onan Operator's Manual or the Green Label Parts Reference Guide to confirm the correct oil filter for your specific unit.
Backed by a 90-day limited manufacturer's warranty. Cummins Power Generation warrants only the quality and integrity of Green Label Parts. Damage caused by the use of non-Green Label oil filters is not covered under the Cummins Onan limited warranty.
Always confirm fitment using your generator's complete model code and spec letter. The full NHE series uses a different oil filter (122-0800) — only NHEL pre-97 Spec F uses this filter. Refer to your Cummins Onan Operator's Manual or Green Label Parts Reference Guide for the correct service interval for your specific unit.