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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

  1. Factory code for optional equipment added to unit.
  2. Specification (Spec) letter. Advances when factory

Source: manual:927-0310 Onan CCK (spec A-R) RV Genset Operators & Parts manual (03-1973).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.