Genuine OEM Yamaha Crankshaft Connecting Rod Needle Roller Bearing - 93310-63412-00
$149.95
Sale price
$149.95
Regular price
$132.99
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Genuine OEM Yamaha Crankshaft Connecting Rod Needle Roller Bearing - 93310-63412-00
$149.95
Sale price
$149.95
Regular price
$132.99
Restore structural integrity to your high-performance engine block with the Genuine OEM Yamaha Crankshaft Connecting Rod Bearing (Part #93310-63412-00 / 9331063412). This premium, factory-original big-end needle roller bearing is precision-engineered to handle extreme combustion forces and severe thermal stresses. Serving as the beating heart of your lower engine assembly, it ensures smooth, zero-play rotational travel where the connecting rod links to the crankshaft flywheels, preventing catastrophic rod failure and costly engine case destruction.
Key Features
- Genuine Yamaha Precision: 100% authentic factory-guaranteed component providing tight-tolerance fitment and unmatched metal tempering compared to universal aftermarket alternatives.
- High-Load Needle Design: Specifically engineered to comfortably handle rapid RPM shifts, high combustion pressures, and the continuous heavy impact of racing.
- Premium Hardened Surface: Machined from extreme-fatigue alloy steel built to resist rolling element pitting and race scoring inside oil-lubmerged crankspaces.
- Direct Overhaul Essential: Highly recommended replacement part when performing a full lower-end engine overhaul, top-end rebuild, or crankshaft replacement.
Vehicle Fitment Guide
This big-end connecting rod needle bearing is precisely engineered for historical and modern generations of Yamaha high-performance off-road and motocross bikes. Please verify your exact model range below:
- Yamaha YZ400F Series: 1998–1999
- Yamaha YZ426F Series: 2000–2002
- Yamaha YZ450F Series: 2003–2005 (Also fits select modern YZ250 2-stroke generations)
- Yamaha WR400F Enduro: 1998–2000
- Yamaha WR426F Enduro: 2001–2002
Direct Replacement for Superseded Factory Part Numbers:
93310-63412-00, 93310-6340H-00, 93310-634B0-0
Yamaha part number: 93310-63412-00. Also searchable as 933106341200.