Cummins/Onan — Radiators - Replace Entire Assembly
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Procedure
- Drain and refill cooling system
- Disconnect/reconnect batteries
- Remove and install entire new assembly
- Disconnect/reconnect coolant hoses
- Remove and replace guards
- Wire harnesses as necessary
- Test run, check for leaks
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.