Cummins/Onan — GENERAL INFORMATION
For these Cummins/Onan models: 4.0CCK, 4.0CCK+IR/, 4.0CCK-3CR/, 4.0CCK-3R/, 5.0CCK.
Applies to: Cummins Onan 4 0Cck
Procedure
- Factory code for optional equipment added to unit.
- Specification (Spec) letter. Advances when factory
Source: manual:927-0310 Onan CCK (spec A-R) Genset Operators & Parts manual (03-1971).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.