MOOSE UTILITY DIVISION 1731-0730 Front Master Cylinder Cap Kit Yamaha

OVERVIEW

Restore reliable front braking functionality with this master cylinder cover kit engineered for Yamaha ATVs. Produced directly by Nissin, an established OE manufacturer in Japan, each assembly arrives complete with the exterior cover cap, internal rubber diaphragm, mounting plate, and fasteners required for installation. This targeted replacement guarantees lasting fluid containment and mechanical integrity for models such as the Yamaha YFM 350 X Warrior.

ENGINEERING & PERFORMANCE

Fabricated to original equipment dimensions by Nissin, this cover assembly maintains consistent hydraulic pressure transmission and eliminates leaks around the master cylinder reservoir. The upgraded diaphragm and pressure plate regulate internal venting while preventing environmental debris from compromising the friction surface. As a direct replacement unit, the kit aligns perfectly with OEM attachment points without requiring modifications or supplemental hardware.

KEY FEATURES

• Primary Manufacturer: Nissin (OE Producer)
• Product Classification: Front Brake Master Cylinder Cover Kit
• Component Set: Outer cap, internal diaphragm, pressure plate, and mounting bolts
• Designation: Factory-spec assembly for designated Yamaha platforms
• Production Origin: Fabricated in Japan under strict automotive standards
• Packaging Configuration: Supplied as individual replacement units
• Maintenance Requirement: Direct fit for scheduled servicing intervals
• Application Scope: Tailored exclusively for listed Yamaha ATV generations

TECHNICAL SPECIFICATIONS

• Brand: Moose Utility Division (OEM Manufactured by Nissin)
• Part Identifier: 1731-0730
• Assembly Type: Front Master Cylinder Cover Kit
• Included Components: Cap assembly, diaphragm gasket, mounting bracket, hardware
• Production Year Range: 1988–2001 (application-dependent)
• Compatible Platforms: Yamaha YFM 350/400 Series
• Installation Location: Front Reservoir Housing
• Sales Unit: One Complete Kit Per Package

FITMENT

• Yamaha YFM 350 FX Wolverine 4x4 (1996–2001)
• Yamaha YFM 400 FW Kodiak 4x4 (1993–1998)
• Yamaha YFM 350 X Warrior (1988–2001)

WHY RIDERS CHOOSE THIS

Maintenance crews choose this kit to permanently correct soft lever action caused by deteriorating stock seals and permeable factory diaphragms. Nissin’s direct manufacturing process yields precise molding tolerances that guarantee leak-free seating against the aluminum reservoir body, extending service intervals significantly. The uncomplicated bolt-on configuration allows riders to execute thorough brake system refreshes quickly, restoring the immediate hydraulic response and predictable stopping power native to Yamaha ATV designs.