Connecting Rod Polaris, Hot Rods 8145

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