Heavy-duty connecting rod kit designed for Yamaha YZ250 (1983-1989) models. This high-quality replacement kit is built to withstand demanding conditions, providing reliability and durability. It includes all components necessary for a complete rebuild.

Features:

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


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


• Double-forged rods ensure improved grain flow and dimensional consistency.


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


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


• Thrust washers and crankpin bearings feature a silver coating for added lubricity.


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

Technical Specifications:

• Centre to Centre: 130.00 mm


• Big End Bore: 32.00 mm


• Big End Pin Diameter: 25.00 mm


• Big End Pin Length: 59.80 mm


• Small End Bore: 23.00 mm


• Washer Thickness: 1.00 mm

Cross-Reference OEM Part Numbers:

YAMAHA: 24Y-11650-01-00, 24Y-11651-01-00.

Vehicle Fitment:

• Yamaha YZ250: 1983, 1984, 1985, 1986, 1987, 1988, 1989.

Part Number: 56-938.HR