Color Legend:

• Red: Canceled part - unavailable for any operations.
• Blue: Part of a kit - cannot be ordered individually.
• Gray (Dimmed): Disabled part - non-interactive for various reasons.
• Part Number : Superseded part - replaced by a newer part.

Description: - The structural commander of your engine is the RayZR B2U3 Crankcase assembly. This high-precision kit features the matched Crankcase 1 and 2 halves, providing the ultimate alignment for internal rotating masses. This assembly is complete with critical Oil Seals, high-temp Gaskets, and the Nozzle 3 for pressurized internal oiling. Technical details including Breather pipes, Pin Dowels, and specialized Bushings ensure factory-perfect cooling and crankcase ventilation. Maintenance is facilitated by the Plug Oil w/O-Ring, Plug Oil Level, and high-tensile Bolt Flanges to maintain engine torque through extreme temperatures. The inclusion of the Gasket Carburetor Cover 2 and specialized Cover Caps highlights the precision engineering involved in maintaining an oil-tight seal. By opting for this genuine Yamaha crankcase, you protect the core of your machines power plant. This is a technical masterpiece of endurance, providing the purchase confidence and mechanical clarity needed for a long, vibration-free, and high-performance engine life, specifically designed for the B2U3 engines demanding power profile.