Complete Hot Rods Connecting Rod Kit designed as a high-quality replacement for Yamaha YFM250 Raptor models (2008–2013). This comprehensive kit includes all necessary components for a reliable and durable connecting rod assembly.

Features:

• Includes rod, crank pin, crank pin bearing, top-end bearing, and thrust washers.


• Manufactured from hot-rolled ASTM 4115 steel, case-hardened to 58–62 Rc for durability.


• Advanced design minimizes high RPM bearing race distortion with strategically located side scalloping and vent slots.


• Double-forged rods improve grain flow and maintain dimensional accuracy.


• Shot-peened and double-honed rods for enhanced strength under heavy loads.


• Small ends are double-drilled for improved lubrication and cooling of the wrist pin bearing.


• Thrust washers and crank pin bearings are silver-coated for added lubricity and performance.

Technical Specifications:

• Big End Bearing (mm): 32 x 40 x 19.8


• Big End Bore (mm): 40.00


• Big End Width (mm): 19.95


• Center to Center (mm): 100.50


• Pin Diameter (mm): 32.00


• Pin Length (mm): 67.75


• Small End Bearing (mm): No Bushing


• Small End Bore (mm): 17.00


• Small End Width (mm): 19.95


• Washer Thickness (mm): N/A

Cross-Reference OEM Part Numbers:

• Yamaha 1S4-11651-00-00

Part Number: 56-855.HR