Manufacturer Part Number:
06-905
Cross-Reference OEM Part Numbers:
Yamaha: 5XC-W0041-00-00
Yamaha: 5UN-W0042-50-00
Yamaha: 1J3-W0041-20-00
Kit Contents:
• Piston, cup seals, dust boot, return spring, circlip, crush washers, grease
Notes:
• Front brake master cylinder rebuild kit
• Covers YZ motocross, YZ-F four-stroke MX, YZ-FX cross-country, and YZ-X off-road models
• WR-F 250 2017+ shares master cylinder with YZ-F series
• All models listed use the same Nissin front master cylinder
Features:
• Direct OEM replacement — drop-in fit with no modifications required
• Premium seal compounds resist brake fluid degradation and heat cycling
• Restores firm lever feel and eliminates brake fade caused by worn seals
• Complete kit — everything needed to rebuild one master cylinder
When to Rebuild:
• Spongy or soft brake lever feel that persists after bleeding
• Visible brake fluid leakage at master cylinder body or lever pivot
• Brake lever gradually pulls to handlebar during sustained application
• Degraded or discolored brake fluid despite regular fluid changes
• Preventive maintenance every 2-3 years or per manufacturer service schedule
Installation Notes:
• Use only DOT 4 brake fluid unless manufacturer specifies otherwise
• Clean master cylinder bore thoroughly before installing new seals
• Lubricate all seals with silicone grease (included) before assembly
• Bench-bleed master cylinder before installing on vehicle
• Bleed entire brake system after installation — start at caliper furthest from master cylinder
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Total Reviews (0)
Write the First Review!