Cummins/Onan 12.0 RDJC — Oil Filter Change
Maintenance
For the Cummins/Onan 12.0 RDJC, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan RDJC
Parts for this job
- 122-0185 Oil filter Amazon Amazon eBay $19.55 eBay NAPA $12.88
Part numbers from the service-parts list for Cummins/Onan RDJC. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Remove filter by turning counterclockwise.
- Clean filter mounting area.
- Oil filter gasket and install new filter.
- Turn filter on clockwise until gasket touches mounting base, then tighten 1/2 turn.
Full service-parts list: Cummins/Onan RDJC →
Source: Cummins/Onan operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.