Wiseco Pro-Lite Top End Piston Kit - Yamaha YZ250 2-Stroke 66.40mm (2002-2022)

Complete Pro-Lite Top End Rebuild Kit for YZ250

Wiseco Pro-Lite top end kit includes everything for a complete YZ250 2-stroke top end rebuild. Race-proven piston design trusted by championship teams, complete gasket kit, and premium components—all in one box.

Why Wiseco Pro-Lite Kits

✓ Complete top end rebuild kit
✓ Pro-Lite lightweight piston included
✓ Race-proven design
✓ Complete gasket kit included
✓ High-performance ring kit
✓ Alloy pin and clips
✓ Everything you need in one box

What's Included

✓ Wiseco Pro-Lite forged piston (66.40mm std bore)
✓ High-performance piston rings
✓ Wrist pin and circlips
✓ Complete top end gasket kit
✓ All seals and o-rings needed

Does It Fit?

✅ **Yamaha YZ250 2-Stroke** (2002-2022)

Quick Specs

Part #: PK1198
Bore Size: 66.40mm (standard)
Type: Pro-Lite 2-stroke piston
Compression: Stock ratio
Weight: 1.36 lbs

Wiseco Pro-Lite Technology

**Lightweight Forged Design:**
- Reduced reciprocating weight
- Better throttle response
- Less vibration
- Increased power
- Longer piston life

**Race-Proven:**
Used by championship teams in Supercross, Motocross, GNCC, and more

Premium Components

**Dedicated Forgings:**
- Aerospace alloy construction
- Superior strength-to-weight ratio
- Designed specifically for each application

**High-Performance Ring Kit:**
- Extended ring life
- Sustained power delivery
- Excellent sealing