Keep your Yamaha ATV in top condition with this complete gasket kit — the convenient, aftermarket replacement solution for dependable engine sealing and performance. Complete Gasket Kit Included OEM Replacement Quality Product. Ideal for full engine rebuilds or routine maintenance. Maintains engine efficiency and performance. Reduces the risk of leaks and engine damage. Durable long-lasting components for reliable use. All items are aftermarket replacement, engineered to meet or exceed OEM sealing standards.

Fits models YFM 350 Bruin and YFM 350 Grizzly. This kit provides all gaskets and seals necessary for a comprehensive engine reseal, helping protect against leaks and ensuring consistent power delivery across the targeted Yamaha 350 family.

Comprehensive Vehicle Fitment

 

Product Specifications

 

OEM & Aftermarket Cross-Reference Information

 

What's Included

Based on standard complete gasket kits for the YFM350 engine, this kit typically includes:

• Cylinder head gasket (replaces OEM 1UY-11181-01-00)

• Cylinder base gasket (replaces OEM 4KB-11351-00-00)

• Valve cover gasket

• Crankcase cover gaskets (replaces OEM 5UH-15451-00-00 etc.)

• Clutch cover gaskets

• Stator / magneto cover gaskets

• Water pump seals and gaskets

• Intake and exhaust gaskets

• Valve stem seals

• All necessary O-rings, oil seals, and drain plug washers for a complete engine overhaul

Note: Pro-X complete gasket kits include everything needed for a full engine rebuild, ensuring superior sealing, durability, and precision fitment . Cometic top end gasket kits include correct base gasket, head gasket, cylinder O-rings, and other top end specific seals .

Why Choose This Aftermarket Gasket Kit?

• Direct-Fit Compatibility: Precision-engineered for Yamaha YFM350 Bruin (2004–2006) and YFM350 Grizzly (2007–2014) models, with comprehensive fitment confirmed by multiple aftermarket suppliers .

• OEM Cross-Reference: Cross-references genuine Yamaha part numbers 1UY-11181-01-00 (cylinder head gasket) and 4KB-11351-00-00 (cylinder base gasket) for confident replacement .

• Proven Aftermarket Support: Leading aftermarket brands including Pro-X Racing Parts, Cometic, JINFANNIBI, and GPA MOTORS manufacture compatible gasket kits for these models, validating extensive aftermarket support for the YFM350 platform .

• Premium Materials: Pro-X gaskets are manufactured from premium, heat-resistant materials for exceptional oil and coolant leak prevention and excellent compression retention . Cometic gaskets are used by professionals in high-performance machines and as OE replacements worldwide .

• Complete Overhaul Solution: Unlike partial kits, this complete gasket set includes everything needed for a full engine rebuild, including head gaskets, base gaskets, valve cover gaskets, oil seals, O-rings, and more .

• Restores Engine Integrity: Comprehensive sealing prevents compression loss, oil seepage, and contamination, maintaining clean engine operation and optimal performance.

Installation Notes:

• Ensure all mating surfaces are clean and free from old gasket material before installation.

• Follow manufacturer torque specifications and tightening sequences for cylinder head bolts and case fasteners as outlined in the Yamaha service manual.

• Use new gaskets only—do not reuse old gaskets once removed.

• After installation, run the engine and check for any signs of leaks.

• Verify your exact model and year against the fitment table to ensure compatibility with your engine configuration.

Why Upgrade?
Worn or damaged gaskets can cause compression loss, oil leaks, and contamination—leading to poor performance and potential engine damage. Restore your Yamaha YFM350 Bruin or Grizzly engine's sealing integrity with this quality aftermarket complete gasket set, designed to keep you riding with confidence.

Order your complete gasket kit today and get back on the trail with confidence.