TKR1727 – Crankshaft (21aP/21bM/21aM) This DLC coated crankshaft is CNC machined from steel, precision balanced, and is compatible with the Blok 21aP, 21bM and 21aM engines. Package...
Product DescriptionTKR1737 – Engine Screw Set (21aM/aP/bM)This screw set contains the head and cover plate screws for a single 21aM, 21aP, or 21bM engine. Package Contents4ea Backplate...
Product DescriptionTKR1736 – Engine O-ring Set (21aP/21bM) This set contains the o-rings to rebuild a single engine. Compatible with the 21aM, 21aP and 21bM engines. Package Contents1ea...
TKR1723 – Complete Carburetor (21aP/21bM) This is the complete 21J carburetor assembly that comes with the Blok 21aP and 21bM engines. Package Contents1ea Carburetor Assembly