CRX Engine Discover the power and precision of Continental CRX Engines. Explore our catalog of engines of all sizes below. CRX1000 V-Twin Engine 1-1/8" Shaft 999cc Replacement Engine 2698501 CRX1000 V-Twin Engine 1-7/16" Shaft 999cc Replacement Engine 2699501 CRX750 V-Twin Engine 1-1/8" Shaft 750cc Replacement Engine CRX680 V-Twin Engine 1" Shaft 679cc GX690 Replacement CRX420 Single Cylinder OHV Replacement Engine 1" Shaft 420cc GX390 Replacement CRX225 Single Cylinder OHV Replacement Engine 3/4" Shaft 224cc GX200 Replacement CRX210 Single Cylinder OHV Replacement Engine 3/4" Shaft 208cc GX200 Replacement CRX165 Single Cylinder OHV Replacement Engine 3/4" Shaft 163cc GX160 Replacement CRX1000 V-Twin Engine 1-1/8" Shaft 999cc Replacement Engine 2698501 Sold out Sold out CRX1000 V-Twin Engine 1-7/16" Shaft 999cc Replacement Engine 2699501 Sold out Sold out CRX750 V-Twin Engine 1-1/8" Shaft 750cc Replacement Engine Sold out Sold out CRX680 V-Twin Engine 1" Shaft 679cc GX690 Replacement Sold out Sold out CRX420 Single Cylinder OHV Replacement Engine 1" Shaft 420cc GX390 Replacement Sold out Sold out CRX225 Single Cylinder OHV Replacement Engine 3/4" Shaft 224cc GX200 Replacement Sold out Sold out CRX210 Single Cylinder OHV Replacement Engine 3/4" Shaft 208cc GX200 Replacement Sold out Sold out CRX165 Single Cylinder OHV Replacement Engine 3/4" Shaft 163cc GX160 Replacement Sold out Sold out