Exterior Components› Body Panels and Components
Cummins/Onan
FILTER OIL CARTRIDGE
SKU: C021 185-5835
Beginner — under 30 min
Description
MIA's Description
This oil filter has a thread size of M20 x 1.5 and does not include a standpipe or an anti-drainback valve (ADBV). Regular replacement of your oil filter is crucial for maintaining clean oil circulation, preventing engine wear, and avoiding overheating risks.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Cummins/Onan |
| Part Number | C021 185-5835 |
Videos
ONAN CUMMINS 4000 RV GENERATOR | OIL CHANGE
How Easy is an Onan Quiet Diesel RV Generator Service?
ONAN Generator Oil Leak Fix, Oil Change, Air Filter, Oil Filter Screen
Cummins Onan - RV Products - How to HQD8000
Oil Change - Cummins Onan 2800i Generator | Winnebago Travato 59K
Changing The Oil On Your CUMMINS ONAN 2500 LP Generator!
Onan RV Generator Fuel Filter Replacement || RV Generator Maintenance
Onan P4500I Cummins Generator Oil Change And Air Filter Service DIY
How To Change The Oil In Your Onan RV Generator
Replacing A Fuel Filter On A Cummins Onan RV Generator - RV Maintenance – Cummins Onan RV QG 4000
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy