Cummins/Onan DJ30 — Change Oil Filter
Maintenance · Full-flow oil filter
For the Cummins/Onan DJ30, from the Cummins/Onan service manual.
Applies to: Onan (Onan Division of Studebaker Corporation, Minneapolis, Minnesota) Spec T, Cummins/Onan DJA engine
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 Onan (Onan Division of Studebaker Corporation, Minneapolis, Minnesota) Spec T. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Place a pan under the old filter and remove it by turning counterclockwise.
- Clean the filter mounting area.
- Oil the new filter gasket and screw the filter on clockwise until the gasket touches the base.
- Tighten 1/2 turn more.
Full service-parts list: Onan (Onan Division of Studebaker Corporation, Minneapolis, Minnesota) Spec T →
Source: Cummins/Onan service 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.