About the Kawasaki EX305 GPz305
The EX305 suffix is the key to separating the featured GPz305 applications.
Kawasaki’s 1983 factory parts catalog identifies the GPz305 as EX305-B1. That model code connects the GPz name with the exact assembly diagrams. When an older motorcycle has been restored or modified, retain the complete designation and compare it with the engine, forks and brakes actually fitted.
Start an EX305 parts search by separating A- and B-model applications. The fork oil seals below list EX305A 1983; the engine gasket set and brake components list EX305B. The EX305B model page brings the B-model service items together, including a clutch spring kit. Check the fitted fork or brake assembly if a previous restoration changed the original equipment.
Compare the actual applicationEX305 part and year differences
The EX305A fork-seal row is deliberately separate from the EX305B rows. The selected EX305B engine gasket set lists 1983, while rear brake shoes and brake pads list 1983–1985. These ranges do not extend one another.
| Part | Listed model and years |
|---|---|
| Engine gasket set | EX305B 1983 |
| Fork oil seals | EX305A 1983 |
| Rear brake shoes | EX305B 1983–1985 |
| Disc brake pads | EX305B 1983–1985 |
Identify the fitted equipmentEX305 model suffix and fitted-equipment checks
- Read the complete EX305 designation and model year from the frame identification and matching Kawasaki documentation.
- Confirm A or B application before ordering; identify any replacement forks, wheel hubs or engine.
- Compare the full fork oil-seal profile and dimensions with the fitted assembly.
- For brakes, distinguish rear drum shoes from disc pads and identify the correct hub or caliper position.
Ask PartsNMore with the complete model, year and clear photos of the part and its markings.
Each linked part has its own model, year and package details. Use those details to confirm the application.