MOOSE RACING Top End Gasket Kit - XR50R 810209

When you're rebuilding an XR50R top end, precision gaskets and seals aren't optional—they're the foundation of a reliable engine. This Moose Racing kit delivers every gasket, O-ring, and seal you need in one package, eliminating the hassle of sourcing components individually and the risk of missing critical pieces. At a fraction of OEM pricing, you get genuine OEM-quality seals paired with high-tech gasket materials engineered for durability and accurate fitment.

Whether you're replacing a worn piston or pursuing a compression increase without costly machine work, this kit covers your rebuild completely. The high-compression variant uses .012" thick base gaskets to raise engine compression—a cost-effective alternative to expensive piston upgrades or cylinder head modifications.

• Vehicle-specific fitment: XR50R
• Complete top-end gasket set
• Includes valve seals, head gasket
• Base, exhaust, tensioner gaskets
• O-rings and miscellaneous seals
• OEM replacement oil seals
• Genuine OEM-quality materials
• U.S.A. manufactured gaskets
• Bolt-on installation, no fabrication
• High-compression variant available
• .012" thick base gaskets (HC)
• Fraction of OEM cost
• Note: Excludes formed valve cover