A high-performance Hot Rods connecting rod kit designed for Yamaha WR450F and YZ450F models, offering exceptional strength and reliability for high-demand riding conditions. Engineered with precision and durability, this kit is perfect for maintaining optimal engine performance.

Features:

• Complete kit includes rod, crank pin, crank pin bearing, top-end bearing, and thrust washers.


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


• Advanced design incorporates side scalloping and vent slots to minimize bearing race distortion at high RPMs.


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


• Shot-peened and double-honed for superior resilience under heavy loads.


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


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

Cross-Reference OEM Part Numbers:

• Yamaha: 2S2116510000, 2S2-11651-00-00


• Psychic: MX-09087


• Hot Rods: 8643


• ProX: 03.2426


• Wiseco: WPR205


• Wossner: P4008


• Athena: P40321023

Compatibility:

Fits the following models:

Yamaha:

• WR450F (2007-2011)


• YZ450F (2006-2009)

Part Number: 56-126.HR