Cummins/Onan — Crankshaft Seal, Rear − Replace (Horizontal)

Repair & overhaul · Rear crankshaft seal

From a Cummins/Onan service manual — check it applies to your exact model before use.

Applies to: Cummins/Onan HDKA

Procedure

1. Disconnect and connect wiring harness
2. Remove and install generator control
3. Remove and install generator end
4. Remove and install air cleaner or silencer
5. Remove and install drip tray
6. Remove and install flywheel
7. Remove and install rear bearing plate
8. Remove and install oil seal
9. Visually inspect for oil leaks
10. Test run unit

Full service-parts list: Cummins/Onan HDKA →

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.

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