Description
Cylinder Works standard-bore cylinder kit for Yamaha YZ250 (1999-2026) packages an OEM-style replacement cylinder with a hand-matched forged Vertex piston and the top-end gaskets needed for a rebuild. The cast-aluminum cylinder uses a nickel-silicon-carbide-plated, precision-honed bore.
- Part number: 20009-K01YZ2501999-2015
- Product type: Standard Bore Cylinder Kit
- Application: Yamaha YZ250 (1999-2026)
- Bore: 66.4mm
- Compression ratio: 10.6:1
- Includes: Cylinder, piston kit and top-end gasket kit
- Matched Vertex piston: #22584
Fitment and installation: Confirm the exact model, year, bore, compression ratio and included components before ordering. Professional measurement and assembly are recommended for engine work.
- Brand: Cylinder Works