The Hot Rods Connecting Rod Kit 8145 is a high-quality replacement for Polaris models, offering superior strength, durability, and reliability for heavy-duty applications. Manufactured from hot-rolled ASTM 4115 steel, these connecting rods are case-hardened and precision-engineered to minimize high-RPM bearing race distortion and improve grain flow. The kit includes all necessary components for a complete rod replacement, ensuring optimal engine performance.

Features:

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


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


• Double-forged for improved grain flow and dimensional consistency.


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


• Double-drilled small ends supply extra lubrication and cooling to the wrist pin bearing.


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


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

Technical Specifications:

• Big End Bore: 34.00 mm


• Big End Width: N/A


• Center to Center: 120.00 mm


• Pin Diameter: 25.00 mm


• Pin Length: 55.90 mm


• Small End Bore: 23.00 mm


• Small End Width: N/A


• Washer Thickness: 1.00 mm

Cross-Reference OEM Part Numbers:

• Polaris: 3082790


• Polaris: 3083625


• Polaris: 3083799


• Polaris: 3083922


• Polaris: CR168


• HOTRODS: 8145


• Wiseco: CR168

Compatible Models:

• Polaris Trail Blazer 250 (1987–2006, including Freedom and ES models)


• Polaris Trail Boss 250 (1985–1999, 2x4, 4x4, and R/ES variants)


• Polaris Xplorer 250 4x4 (2000–2001)


• Polaris Big Boss 250 (4x6: 1989–1993, 6x6: 1989–1993)


• Polaris 300 (2x4/4x4: 1994–1995)


• Polaris Big Boss 300 (4x6: 1989–1992, 6x6: 1994)


• Polaris Xplorer 300 4x4 (1996–1999)


• Polaris Xpress 300 2x4 (1996–1999)


• Polaris Cyclone 250X (1987)


• Polaris Scrambler 250 (1985–1986)

Part Number: 56-203.HR