Cummins/Onan — Muffler Installation
Repair & overhaul · Exhaust system
From a Cummins/Onan service manual covering: C25 D6, C30 D6, C35 D6, C40 D6, C50 D6, C60 D6. Check it applies to your exact model before use.
Applies to: Cummins/Onan C25 D6, Cummins/Onan C30 D6, Cummins/Onan C35 D6, Cummins/Onan C40 D6, Cummins/Onan C50 D6, Cummins/Onan C60 D6, Cummins/Onan 4BT3.3 engine, Cummins/Onan 4BT3.3-G5 engine, Cummins/Onan 4BT3.3-G7 engine
Procedure
- Place the muffler over the four bolt holes in the skid.
- Attach the muffler with two bolts on each end.
- Install exhaust pipes on the muffler.
- Install three clamps.
- Place the end panel (2) on each side panel locating pin.
- Slide the end panel (2) down to latch onto the locating pins.
- Attach the top panel (1) with bolts on three sides and top.
Full service-parts list: Cummins/Onan C25 D6 →, Cummins/Onan C35 D6 →, Cummins/Onan C50 D6 →, Cummins/Onan C60 D6 →
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.