Cummins/Onan — Injectors Removal
Repair & overhaul
From a Cummins/Onan owner's manual covering: K1800, K2000E, K38, K50, KT38, KTA38, KTA50, KTTA38, KTTA50, KtA38, KtA50, KttA38. Check it applies to your exact model before use.
Applies to: Cummins/Onan K38, Cummins/Onan K50, Cummins/Onan KTA38, Cummins/Onan KTA50, Cummins/Onan K38 and K50 engine
Before you start
- Do not let the tappet fall out of the HVT injector. Damage can result.
Procedure
- Steam clean the engine and protect electrical components and openings.
- Remove the rocker lever cover.
- Remove the rocker lever assembly.
- For STC or HVT injectors, remove the banjo connector mounting screw, oil transfer tube, sealing washers and o-ring.
- Remove the injector hold down capscrews and the clamp.
- Use an injector puller to remove the injector.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan K38 →, Cummins/Onan K50 →, Cummins/Onan KTA38 →, Cummins/Onan KTA50 →
Source: Cummins/Onan owner'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.