Cylinder Works Big Bore Gasket Kit - YFZ450 / YZ450F / WR450F (2003-2013)
Cylinder Works Big Bore Gasket Kit - Yamaha YFZ450 / YZ450F / WR450F
Complete top end gasket kit for Cylinder Works big bore cylinders. Designed for +3mm overbore applications on Yamaha 450 engines. Made in the USA.
What's Included
- Complete top end gasket set
- Head gasket
- Base gasket
- All required seals and O-rings
Key Features
Direct fit for Cylinder Works big bore kits. No machine work required. Gaskets are precision cut for a perfect seal. High-quality materials handle extreme heat and pressure. Made in USA by Cylinder Works.
Specifications
- Type: Top End Gasket Kit
- Style: Big Bore (+3mm)
- Engine Type: 4-Stroke
- Material: Nickel Silicon Carbide compatible
- Weight: 0.15 lbs
Fitment
Yamaha YFZ450: 2004-2013
Yamaha YZ450F: 2003-2005
Yamaha WR450F: 2003-2006
Why Cylinder Works?
Cylinder Works is a trusted name in powersports engine components. Their cylinders and gasket kits are manufactured in the USA to strict tolerances. Used by professional racers and weekend riders who demand reliability.
Note
This is a gasket kit only. For complete big bore cylinder kits with piston, see our Cylinder Works cylinder kits.
📦 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.
