ProX
Engine Components › Piston Sets - Powersports
PRX Piston Kits
Part # prx01.2660.100 MFR # 01.2660.100 ID 616198
ProX 01-05 YFM660R Piston Kit (101.00mm)
✓ In Stock (1 location)
$136.44
MSRP $141.80
Save $5.36 (4% off)
Free ground shipping on eligible orders
⚠️ Prop 65 Warning — Contains chemicals known to the State of California to cause cancer or reproductive harm.
⚠️ Not CARB Approved — Race/off-road use only. Not legal for street use on California-registered vehicles.
⚠️ CARB Acknowledgment Required — Buyer must confirm emissions compliance at checkout.