Cummins/Onan — Crankcase Breather Cleaning (DGAE)
Maintenance · Crankcase ventilation
From a Cummins/Onan operator's manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DGAB, Cummins/Onan DGAC, Cummins/Onan DGAD, Cummins/Onan DGAE, Cummins/Onan 4A2.3 engine, Cummins/Onan 6A3.4 engine, Cummins/Onan 6AT3.4 engine
Before you start
- Solvents can be poisonous, irritating to the skin, and explosive.
Procedure
- Remove breather assembly.
- Clean breather with cleaning solvent.
- Allow to dry.
- Replace on engine.
Tools required
- Cleaning solvent Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan DGAB →, Cummins/Onan DGAC →, Cummins/Onan DGAD →, Cummins/Onan DGAE →
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.