Rear Brake Master Cylinder Rebuild Kit for Yamaha Replaces OEM# 5UN-W0042-50-00
Rear Brake Master Cylinder Rebuild Kit for Yamaha Replaces OEM# 5UN-W0042-50-00
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Rear Brake Master Cylinder Rebuild Kit for Yamaha
This rear brake master cylinder rebuild kit for Yamaha replaces OEM part number 5UN-W0042-50-00, containing seals and components to restore brake function.
Overview
The rear brake master cylinder rebuild kit for Yamaha includes all necessary seals, O-rings, and pistons to overhaul the master cylinder. It is designed for Yamaha models using OEM# 5UN-W0042-50-00. This kit restores brake pressure and eliminates leaks.
Built For Performance
- Includes genuine-type rubber seals for proper sealing
- Contains piston assembly and spring
- Precision-fit components ensure no air leaks
- Cost-effective alternative to buying a new master cylinder
On-The-Job Use
- Brake system overhaul on Yamaha motorcycles and ATVs
- Fixing spongy brake feel or fluid leaks
- Routine maintenance of braking system
Specs At A Glance
| Part Number(s) | 5UN-W0042-50-00 |
| Kit Includes | Seals, O-rings, piston, spring |
| Fitment | Yamaha (various models) |
Good To Know
Q: What is included in this rebuild kit?A: The kit contains all internal seals, O-rings, the piston, and return spring needed for a complete master cylinder rebuild.
Q: Do I need any special tools to rebuild the master cylinder?A: Basic hand tools and a brake bleed kit are usually sufficient; consult a service manual for your specific model.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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