Cummins/Onan — Battery Cable Connection
Installation
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan HDKAL/HDKAS engine, Cummins/Onan NT855 engine, Cummins/Onan NTA855 engine
Before you start
- Do not connect battery until instructed in Installation Checks and Startup.
Procedure
- Size battery cables per Table 4 or by rated cranking current (280 A at 0F/-18C).
- Use a full-length cable of the same gauge as the positive cable for the negative return path.
- Terminate battery cables with appropriately sized eyelet connectors.
- Use an external/internal-toothed washer between the engine block and negative cable connector.
- Route battery cables away from fuel lines and hot exhaust components.
Specs & values
- 0-10 ft: 2 AWG
- 11-15 KuduParts $20.00 FridayParts $20.30 ft: 0 AWG
- 16-20 Amazon eBay FridayParts $14.38 ft: 000 AWG
Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →
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.