KE21V Crankcase Set - Kyosho 74035-04  [KY-74035-04]

Replacement Crankcase for KE21V

This crankcase set replaces the original housing on KE21V RC engines. It secures the crank assembly and internal components, helping to restore proper alignment and sealing after damage or long-term wear.

Compatibility is restricted to the KE21V engine family; double-check your engine code before purchase. The component is intended for hobby-grade nitro RC engine use and is scaled to model engine dimensions.

Installation notes: extract the engine from the model, remove the top-end and internals, and examine bearings and seals for wear before installing the new crankcase. Apply correct torque to fasteners and thread-lock as advised by your engine manual. When addressing impact or corrosion damage, inspect the crankshaft and connecting rod carefully for straightness and fatigue.

Tuning and maintenance role: installing a fresh crankcase restores crank alignment and compression characteristics, which helps reduce oil leakage and promotes steadier running when paired with routine carburetor and head upkeep.