1999 - 2021
YAMAHA YZ 250
Piston kit 66 36mm
| Vertex
Fits to:
YAMAHA YZ 250 [2019 - 2021]
YAMAHA YZ 250 [1999 - 2017]
YAMAHA YZ 250 [1999 - 2018]
Specifications
| Manufacturer | Vertex |
|---|---|
| Bore size | 66,40 mm |
| Displacement | 250 cc |
| Style | Cast Replica |
| Units | Kit |
| Piston material | Aluminum Alloy| Cast |
| Skirt coating | Moly Coated |
| Ring material | Nitride Coated |
| Piston size | Standard Size C |
| Engine type | 2-Stroke |
| Piston diameter | 66.36 mm |
Product description
All pistons are heat treated with a T-5 hardening and tempering cycle All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston Forged pistons are forged from 2618 aluminum for superior strength and durability Forged High Compression pistons improve power and torque across entire rpm range Big Bore pistons increase engine’s displacement, torque, and peak horsepower Forged Replica pistons are forged OE replacements Replica pistons and all rings are OEM replacements Kits include piston, rings, wrist pin and circlips Top end piston kits include piston, rings, wrist pin, circlips and top end gaskets Replacement two-stroke piston rings sold individually; four-stroke piston rings sold as a set PISTON VERSIONS