Wiseco WB1106 Bottom End Gasket Kit for Arctic Cat 440-600

The Wiseco WB1106 is a complete bottom end gasket kit engineered specifically for Arctic Cat 440–600 snowmobile engines. Manufactured from premium materials to meet or exceed OEM specifications, this kit supplies all gaskets and seals required for a thorough bottom end rebuild — consolidated under a single part number for convenience.

Key Features:

• OEM+ Quality Gaskets: Bottom end gasket kit is manufactured from premium materials exceeding OEM standards, ensuring an exceptional seal across all critical mating surfaces.
• Premium Main Bearings: Case hardened for maximum service life and smooth, reliable operation at high RPMs.
• Corrosion Resistant Surface Treatment: Protective finish guards against corrosion and pitting during long-term use or storage, extending the strength and lifespan of the assembly.
• Caged Needle Roller Bearings: Designed to support the highest possible RPM demands of performance snowmobile engines.
• Crank Pin Bearings: Produced from hot-rolled steel, case hardened to 58–62 RC for extended assembly life.
• Bushed Top End Rod: Oil-retention bushing at the top of the connecting rod eliminates pin galling and promotes consistent lubrication.
• Case Hardened Rod Bores: Bottom end rod bores are case hardened to 58–62 RC to optimize the bearing running surface.
• Complete Kit: All gaskets and seals are supplied under one part number — everything needed to get the rebuild done right the first time.

Wiseco's bottom end gasket kits are inspected for quality and accuracy before shipping, making the WB1106 a reliable, professional-grade solution for Arctic Cat 440–600 engine rebuilds.