Heavy-duty connecting rod kit designed for select Yamaha WR250F, YZ250F, and YZ250FX models. Engineered for exceptional durability and performance, this kit is compatible with both OE and Hot Rods crankshafts.

Features:

• Heavy-duty OE replacement connecting rod for superior performance.


• Made from certified 8620 AISI steel for exceptional strength.


• Big end features side scalloping vent slots to minimize high-RPM bearing race distortion.


• Crankpins manufactured from hot-rolled ASTM 4115 and case-hardened to 58-62Rc for durability.


• Utilizes the latest caged needle roller bearing designs for longevity at high RPM.


• Silver-coated bronze phosphor thrust washers enhance durability.


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


• Made in the U.S.A.

Included Items:

• (1) Connecting rod


• (1) Connecting rod bearing


• (1) Crankshaft pin

Technical Specifications:

• Big End Bearing (mm): 30 x 38 x 17.8


• Big End Bore (mm): 38.00


• Big End Width (mm): 17.95


• Center to Center (mm): 92.50


• Pin Diameter (mm): 30.00


• Pin Length (mm): 54.80


• Small End Bore (mm): 16.00


• Small End Width (mm): 15.05

Cross-Reference OEM Part Numbers:

• Yamaha: 1SM-11651-00-00

Vehicle Fitment:

• Yamaha WR250F (2015–2018)


• Yamaha YZ250F (2014–2018)


• Yamaha YZ250FX (2015–2019)

Part Number: 56-2968.HR