The Story
Connecting rod kit for Yamaha WR 250 (1991–1997) and Yamaha YZ 250 (1990–1998) models. This high-quality replacement kit is built to provide exceptional performance and reliability, suitable for demanding riding conditions.
Features:
- Manufactured from hot-rolled ASTM 4115 material and case-hardened to 58-62 Rc for maximum durability.
- Advanced design includes strategically located side scalloping and vent slots to reduce high RPM bearing race distortion.
- Double-forged rods ensure improved grain flow and dimensional accuracy.
- Shot-peened and double-honed for enhanced strength under heavy loads.
- Small ends are double-drilled for increased lubrication and cooling of the wrist pin bearing.
- Silver-coated thrust washers and crank pin bearings enhance lubricity.
- Complete kit includes connecting rod, crankpin, crankpin bearing, top-end bearing, and thrust washers.
Specifications:
- Centre to Centre: 125.00 mm
- Big End Bore Ø: 32.00 mm
- Big End Width: Not specified
- Pin Diameter: 25.00 mm
- Pin Length: 59.90 mm
- Small End Bore Ø: 23.00 mm
- Small End Width: Not specified
- Washer Thickness: 1.00 mm
Cross-Reference OEM Part Numbers:
YAMAHA: 5X5-11651-01-00, 5X5-11651-02-00, 5X5-11651-03-00
HOTRODS 8107
Vehicle Fitment:
- Yamaha WR 250 (1991–1997)
- Yamaha YZ 250 (1990–1998)
Part Number: 56-979.HR
Description
Connecting rod kit for Yamaha WR 250 (1991–1997) and Yamaha YZ 250 (1990–1998) models. This high-quality replacement kit is built to provide exceptional performance and reliability, suitable for demanding riding conditions.
Features:
- Manufactured from hot-rolled ASTM 4115 material and case-hardened to 58-62 Rc for maximum durability.
- Advanced design includes strategically located side scalloping and vent slots to reduce high RPM bearing race distortion.
- Double-forged rods ensure improved grain flow and dimensional accuracy.
- Shot-peened and double-honed for enhanced strength under heavy loads.
- Small ends are double-drilled for increased lubrication and cooling of the wrist pin bearing.
- Silver-coated thrust washers and crank pin bearings enhance lubricity.
- Complete kit includes connecting rod, crankpin, crankpin bearing, top-end bearing, and thrust washers.
Specifications:
- Centre to Centre: 125.00 mm
- Big End Bore Ø: 32.00 mm
- Big End Width: Not specified
- Pin Diameter: 25.00 mm
- Pin Length: 59.90 mm
- Small End Bore Ø: 23.00 mm
- Small End Width: Not specified
- Washer Thickness: 1.00 mm
Cross-Reference OEM Part Numbers:
YAMAHA: 5X5-11651-01-00, 5X5-11651-02-00, 5X5-11651-03-00
HOTRODS 8107
Vehicle Fitment:
- Yamaha WR 250 (1991–1997)
- Yamaha YZ 250 (1990–1998)
Part Number: 56-979.HR
