High-quality connecting rod kit designed for Yamaha YZ125 models, providing superior durability and precision engineering to meet the demands of high-performance applications.

Features:

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


• Advanced design with strategically placed side scalloping and vent slots to minimize high RPM bearing race distortion.


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


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


• Double-drilled small ends provide increased lubrication and cooling to the wrist pin bearing.


• Silver-coated thrust washers and crank pin bearings for improved lubricity and reduced friction.


• Complete kit includes rod, crank pin, crank pin bearing, top end bearing, and thrust washers for a comprehensive rebuild solution.

Specifications (mm):

• Big End Bearing: 22x29x16.8


• Big End Bore: 29.00


• Big End Width: 16.95


• Center to Center: 105.00


• Pin Diameter: 22.00


• Pin Length: 54.30


• Small End Bearing: 15x20x17.8


• Small End Bore: 20.00


• Small End Width: 16.95

Cross-Reference OEM Part Numbers:

• CR174


• Hot Rods: CR174 8143


• Yamaha: 4PE-11651-02-00


• Wossner: P2019


• Wiseco: WPR174


• Psychic: MX-09078

Vehicle Fitment:

Yamaha:

• YZ125 (1997–2000)

Part Number: 56-153.HR