Yamaha YZ250 Piston Set - Wiseco - Pro-Lite - `02-`20. The Wiseco Pro-Lite piston set is a direct-fit, forged replacement for Yamaha YZ250 two-stroke engines from 2002 through 2020, offering a balanced option for riders who want reliable, race-capable hardware without excessive cost.

Pro-Lite is Wiseco’s established forged 2-stroke piston series designed for both track and trail use. These pistons feature an optimized forging profile for strength-to-weight balance and additional lightening operations to improve throttle response. Each piston is engineered, forged and machined in the USA (Mentor, OH) and supplied with quality rings, a wrist pin and circlips to simplify installation. The set fits a 68.50 mm bore and carries Wiseco part reference 804M06850 (2697CD). This combination gives a consistent fit and durable construction suitable for maintenance, rebuilds, or performance-oriented builds where dependable components are required.

Features

• Forged and machined in the USA (Mentor, OH)
• Fits Yamaha YZ250 model years 2002–2020 (68.50 mm bore)
• Includes piston rings, wrist pin, and circlips
• Optimized forging for strength-to-weight balance
• Extra lightening operations for improved throttle response
• Wiseco part # 804M06850 / 2697CD

If you have questions about fitment, installation, or compatibility with your build, call us directly — our technicians can help walk you through options and services. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to schedule or ask questions. If you’re considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov