Wiseco Pro-Lite Piston Kit with Gaskets - Yamaha YZ250/YZ250X (2002-2025) - 66.40mm Bore (Standard) - Ceramic Composite - 2-Stroke
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Wiseco Pro-Lite Piston Kit with Gaskets - Yamaha YZ250/YZ250X - Standard Bore
Premium Wiseco Pro-Lite piston kit with complete gasket set for the Yamaha YZ250 and YZ250X 2-stroke motocross/off-road bikes. This is the STANDARD BORE (66.40mm) kit - direct replacement for stock pistons!
Kit Includes
- Pro-Lite Series Piston
- Ring Set
- Wrist Pin
- Circlips
- Bearing
- Complete Gasket Set
Key Features
- Pro-Lite Series - lightweight forged design for maximum throttle response
- 4032 aluminum alloy construction
- Designed for Ceramic Composite bore cylinders
- Complete top-end gasket kit included
- Standard bore - no cylinder work required
- 24 years of fitment (2002-2025)!
- Fits both MX (YZ250) and Off-Road (YZ250X) models
Piston Specifications
- Bore Size: 66.40 mm (Standard)
- Piston Diameter: 66.36 mm
- Stroke Length: 72.00 mm
- Material: 4032 Aluminum Alloy
- Skirt Coating: Non-Coated
Engine Specifications
- Displacement: 249cc
- Engine Type: 2-Stroke
- Weight: 1.3 lbs
Fitment
- Yamaha YZ250: 2002-2025
- Yamaha YZ250X: 2016-2025
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
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