Yamaha YFZ450 Piston Kit - Wiseco - 11.41 CR, 95.00 mm Bore ('04-'13) is a complete forged piston package designed for riders upgrading or rebuilding their YFZ450 engine. This kit provides the core components needed to restore compression and durability to a 95.00 mm bore cylinder.

Built by Wiseco, this piston kit is engineered for 4-stroke powersports applications and manufactured to tight tolerances. The forged construction increases material tensile strength for improved resistance to stress and wear compared with cast pistons. Each kit is tailored to the Yamaha YFZ450 specification for the '04–'13 model years and includes high-quality piston rings, wrist pin(s), and circlips for a straightforward installation when fitting to a standard 95.00 mm bore.

Features

• Forged Wiseco piston matched to YFZ450 '04–'13 application
• 11.41 compression ratio, 95.00 mm bore
• Includes piston rings, wrist pin(s), and circlips
• Machined and assembled to tight tolerances in the USA
• Designed for improved strength and consistent service life

If you have questions about fitment or compatibility, call us directly — our parts specialists can help confirm fit for your bike and discuss installation. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to schedule service or get technical guidance.

If you are considering purchasing multiple items, please contact us for possible shipping discounts. We install on premises at both locations.

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