Exhaust Valve, Ducar 224cc Item Number: 224-1125 Price: $8.15 Add to Cart Description The 224-1125 exhaust valve fits the Ducar 224cc engine. The head is 25mm and the length is 64mm. This product also fits the Harbor Freight 224cc Predator engine. Accessories Intake Valve, Ducar 224cc Lifter, DUCAR 212 Cylinder Head, Ducar 224cc 22lb Valve Spring, Clone, Predator Head Gasket, Ducar 212, Predator, Ducar 224