Wiseco WB1172 Bottom End Gasket Kit for Honda CRF450R

The Wiseco WB1172 Bottom End Gasket Kit supplies all the gaskets and seals required to complete a professional-grade bottom end rebuild on the Honda CRF450R. Engineered to meet or exceed OEM specifications, every component in this kit is manufactured from premium materials to ensure reliable, long-lasting seals at all critical mating surfaces.

Key Features:

• OEM+ quality gaskets and seals — premium materials exceed factory standards for superior sealing at all bottom end mating surfaces
• Corrosion-resistant surface treatment — protects against corrosion and pitting during long-term use or storage, extending the life and strength of the assembly
• Case-hardened main bearings — manufactured to exacting quality standards and case hardened for maximum service life and smooth operation at high RPM
• Caged needle roller bearings — designed to support the highest possible RPM demands of performance four-stroke engines
• High-quality crank pin bearings — produced from hot-rolled steel and case hardened to 58–62 RC for extended assembly longevity
• Complete kit convenience — all gaskets and seals packaged under one part number for a straightforward, efficient rebuild

Wiseco bottom end gasket kits are a trusted choice for riders and technicians rebuilding high-performance dirt bike engines. Designed as a direct-fit solution, this kit eliminates the guesswork of sourcing individual components, ensuring your engine is sealed properly the first time.