Champion R155 crankshaft, catalog 22NN69, is a direct replacement part for Champion R15A and R15B air compressor pumps. This crankshaft is the central rotating component in the pump's drive train and is specified in Champion's R-series documentation as the R155 crankshaft for R15A and R15B models. Identified by part number R155 and distributor catalog 22NN69, it is intended to replace a worn or damaged crankshaft in compatible Champion R15A/R15B pump assemblies. Replacing the crankshaft helps restore correct crank motion and pump performance without altering other components in the assembly.
