Kawasaki Z1 900 Parts (1973–1975) – OEM & Aftermarket Motorcycle Parts

Looking for high-quality Kawasaki Z1 900 parts? This collection is dedicated to supporting one of the most important motorcycles ever produced — whether you’re restoring a museum-quality classic or maintaining a well-loved rider.

The Kawasaki Z1 900 changed motorcycling forever. Powered by a revolutionary 903cc air-cooled inline-four engine, the Z1 delivered approximately 82 horsepower and a top speed exceeding 130 mph, making it the fastest production motorcycle of its time. Featuring full instrumentation, electric start, and advanced engineering, the Z1 set a new benchmark for performance, refinement, and reliability.

The motorcycle press praised the Z1 for its smooth power delivery, minimal vibration, easy starting, strong straight-line stability, and linear acceleration. Steering was precise and predictable, contributing to confident handling for such a powerful machine. While period testers noted that wear items such as rear tires, chains, and shocks required frequent attention due to the Z1’s performance, the engine itself proved exceptionally durable — a key reason the Z1 earned its legendary reputation.

Today, the Z1 900 is widely regarded as the motorcycle that ushered in the superbike era, influencing every high-performance motorcycle that followed. Its combination of raw power, engineering excellence, and timeless styling makes it one of the most sought-after vintage motorcycles in the world.

Quality Z1 900 Parts – Built for Authentic Restorations & Reliable Riding

At Old Bike Barn, we specialize in hard-to-find Kawasaki Z1 900 replacement parts to support accurate restorations and dependable long-term ownership. Whether you’re rebuilding the engine, refreshing suspension, or maintaining braking and control systems, this collection provides the parts you need to keep your Z1 performing as it should.

This page includes: engine gasket sets and seal kits, carburetor rebuild kits and fuel system components, fork seals and suspension parts, throttle, clutch, and brake cables, OEM-style levers, grips, and control hardware, front and rear brake pads and hardware, and other essential service items commonly required on aging Z1 models.

All parts are curated specifically for Kawasaki Z1 900 motorcycles, ensuring accurate fitment and reliable performance. As original factory components become increasingly rare, we focus on keeping critical maintenance and restoration parts available so these historic machines can continue to be ridden and preserved.

Why Choose Old Bike Barn?

Hard-to-find OEM and aftermarket parts, accurate Z1-specific fitment, inventory curated by riders who wrench, and friendly support from vintage motorcycle specialists — that’s why enthusiasts trust Old Bike Barn for Kawasaki Z1 900 motorcycle parts. We help keep the motorcycles that shaped history alive.