Revitalize the legendary twin-cylinder powerplant of your classic ATV with the ProX Connecting Rod Kit (Part No. 19-9058 / 03.2021). Manufactured in Japan from ultra-tough, double-forged alloy steels, this kit is engineered to handle the brutal high-RPM demands and intense thermal loads of two-stroke twin racing.
Each rod is shot-peened and barrel-finished to completely eliminate surface micro-imperfections, relieve residual stress, and optimize structural grain flow for maximum fatigue resistance. Strategically placed lubrication slots ensure optimal oil feed and cooling to the big-end bearing, keeping your rotating assembly dependable under hard dune and trail riding.
Vehicle Fitment
| Make | Model | Year Range | Specific Years |
| Yamaha | YFZ350 Banshee | 1987–2006 | 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
Kit Contents:
- Forged Connecting Rod
- Crankpin
- Big-End Bearing
- Small-End (Wrist Pin) Bearing
- Thrust Washers (where applicable)
TSO Tip
When rebuilding your Banshee crankshaft, always verify that your total indicated runout (TIR) measures under 0.03mm on V-blocks across both journals before buttoning up the cases. Liberally pre-lubricate the lower rod bearings with clean two-stroke premix oil during assembly to protect the moving parts the split-second the engine fires.
Compatibility
Fetching compatibility details...
| Year | Make | Model |
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