High-quality replacement connecting rod kit designed for durability and performance in demanding applications. Manufactured from hot-rolled ASTM 4115 steel and case-hardened to 58-62 Rc, the kit provides exceptional strength and longevity. Its advanced design includes strategically placed side scalloping and vent slots to minimize high RPM bearing race distortion.

The double-forged rods improve grain flow and maintain dimensional consistency, while shot-peening and double-honing enhance strength under heavy loads. The small ends are double-drilled for additional lubrication and cooling, critical for wrist pin bearings under extreme conditions. Thrust washers and crank pin bearings are silver-coated for added lubricity. Sold as a complete kit with rod, crank pin, crank pin bearing, top-end bearing, and thrust washers.

Features:

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


• Side scalloping and vent slots reduce high RPM bearing race distortion.


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


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


• Double-drilled small ends enhance lubrication and cooling for wrist pin bearings.


• Silver-coated thrust washers and crank pin bearings for increased lubricity.


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

Specifications:

• Big End Bearing: 35x43x21.7 mm


• Big End Bore: 43.00 mm


• Big End Width: 21.90 mm


• Center to Center: 129.00 mm


• Pin Diameter: 35.00 mm


• Pin Length: 64.60 mm


• Small End Bore: 20.00 mm


• Washer Thickness: 0.95 mm

Cross-Reference OEM Part Numbers:

• KTM: 59030015044

Vehicle Fitments:

• KTM 250 EXC (2003–2005)


• KTM 250 XC (2003–2005)


• KTM 250 XC-W (2003–2005)


• KTM 450 EXC (2003–2007)


• KTM 450 EXC-R (2003–2007)


• KTM 450 MXC (2003–2005)


• KTM 450 SX-F (2003–2004)


• KTM 450 XC (2008)


• KTM 450 XC-W (2007)


• KTM 525 EXC (2003–2007)


• KTM 525 MXC (2003–2007)


• KTM 525 SMR (2003–2007)


• KTM 525 SX (2003–2007)


• KTM 525 XC (2003–2008)


• KTM 540 SXS (2004)

Part Number: 56-863.HR1