Replacement parts

 Here you can get replacment parts for an engine you have purchased from CR Machine before, or you can get a precision balanced bottom end assembly and you can do your own cylinder work.

CR Machine engine cylinder bodies have identification writing on the top of the top cooling fin.

You will see the model and usually the stroke of the engine engraved on the top fin. 

 

40mm stroke trued and balanced crank GT-5 precision balanced bottom end assembly
40mm stroke trued and balanced crankGT-5 precision balanced bottom end assembly

Trued and balanced 40mm stroke PK-80 crank

Precision balanced GT-5 bottom end assembly

GT-5 SUPER bottom end assembly GT-5 SUPER piston set
GT-5 SUPER bottom end assemblyGT-5 SUPER piston set

GT-5 SUPER racing bottom end assembly

GT-5 SUPER piston set for non reed valve motors

GT-5 SUPER piston set reed valve GT-5, GT-5L replacement piston w/rings
GT-5 SUPER piston set reed valveGT-5, GT-5L replacement piston w/rings

GT-5 SUPER piston set for reed valve motors

Replacement piston for GT-5, GT-5L engines.

GT-5L replacement cylinder Replacement piston for Half-breed engines (type A)
GT-5L replacement cylinderReplacement piston for Half-breed engines (type A)

GT-5L replacement cylinder body

Replacement piston and rings for Entry level Half-Breed engines (type A)

Replacement piston for PK-80 with rings Stage 1 GT-5 replacement cylinder
Replacement piston for PK-80 with ringsStage 1 GT-5 replacement cylinder

Replacement piston and rings for PK-80 engines (type A)

Replacement cylinder body for GT-5 type engines

Stage 1 PK-80 replacement cylinder body Stage 1 replacement cylinder body for Half-Breed engines
Stage 1 PK-80 replacement cylinder bodyStage 1 replacement cylinder body for Half-Breed engines

Stage 1 replacement cylinder for PK-80 style motors

Replacement cylinder body for Half-Breed engines

Super motor replacement piston w/rings Precision balanced PK-80 style bottom end assembly
Super motor replacement piston w/ringsPrecision balanced PK-80 style bottom end assembly

Replacement piston for Super Motors

Professionally built precision balanced PK-80 bottom end assembly. OUT OF STOCK

Super motor replacement cylinder
Super motor replacement cylinder

Super Motor Replacement cylinder ONLY