Kawasaki KZ400 KZ 400 400cc Cylinder Barrel Block 1974-1978 OEM 11005-1011

Product Description

Original equipment manufacturer (OEM) aluminum engine cylinder barrel, also known as a jug block, for vintage mid-1970s Kawasaki twin-cylinder motorcycles. This factory 398cc standard-displacement cylinder casting is designed for air-cooled vertical twin engines and includes cast-iron sleeve inserts. Features include a central timing chain tunnel, integrated cooling fins for heat control, and standard base stud bolt hole placement for direct installation. Exact Fitment & Compatibility Direct factory replacement for first-generation Kawasaki 400cc commuter twins. Fits: 1974 Kawasaki KZ400 Standard/Base Twin 1975 Kawasaki KZ400D 1975 Kawasaki KZ400S Special/Budget Variant 1976 Kawasaki KZ400D3 1976 Kawasaki KZ400S2 1977 Kawasaki KZ400D4 1977 Kawasaki KZ400S3 1978 Kawasaki KZ400B1 1978 Kawasaki KZ400C1 Deluxe Variant Note: Not a direct fit for later 1980s KZ440 models or liquid-cooled inline-four applications without custom machining.