Connecting Rod 87-06 Banshee, Hotrod 8121 Yamaha ATV

High-quality connecting rod kit designed for Yamaha YFZ350 Banshee models. Made from durable hot-rolled ASTM 4115 steel, these rods are case-hardened and engineered to withstand high-rpm performance demands. Features include advanced side scalloping and vent slots for reduced bearing race distortion, double-forged construction for enhanced grain flow, and a shot-peened finish for superior strength. The kit ensures excellent lubrication and cooling through double-drilled small ends, with silver-coated thrust washers and crank pin bearings for improved lubricity. Supplied as a complete kit, it includes the rod, crank pin, crank pin bearing, top-end bearing, and thrust washers.

Features:

• Manufactured from hot-rolled ASTM 4115 steel, case-hardened to 58-62 Rc.
• Side scalloping and vent slots reduce high-rpm bearing race distortion.
• Double-forged for consistent dimensional stability and improved grain flow.
• Shot-peened and double-honed for increased strength under heavy loads.
• Double-drilled small ends enhance lubrication and cooling of the wrist pin bearing.
• Silver-coated thrust washers and crank pin bearings for added lubricity.
• Complete kit includes rod, crank pin, crank pin bearing, top-end bearing, and thrust washers.

Technical Specifications:

• Big End Bearing (mm): 22x29x17
• Big End Bore (mm): 29.00
• Big End Width (mm): 16.98
• Center to Center (mm): 110.00
• Pin Diameter (mm): 22.00
• Pin Length (mm): 52.70
• Small End Bearing (mm): 16x21x22.5
• Small End Bore (mm): 21.00
• Small End Width (mm): 17.98

Cross-Reference OEM Part Numbers:

• Yamaha: 29L-11651-00-00
• 56-196.HR

Vehicle Compatibility:

• Yamaha YFZ350 Banshee: 1987–2006
• Yamaha YFZ350LE Banshee Limited Edition: 2003–2005
• Yamaha YFZ350SE Banshee Special Edition: 2006–2005
• Yamaha YFZ350SP Banshee 50th Anniversary Edition: 2006

Part Number: 8121