Head Intake & Exhaust Valves Seals Cotters For Yamaha YFZ 450 YFZ450 R 2004-2023

Head Intake & Exhaust Valves Seals Cotters for Yamaha

This cylinder head valvetrain rebuild kit replaces worn intake and exhaust valves, seals, and keeper cotters on compatible off-road engines.

Overview

The Head Intake & Exhaust Valves Seals Cotters for Yamaha provides a comprehensive set of valvetrain components to restore engine compression. Installing this Head Intake & Exhaust Valves Seals Cotters for Yamaha helps prevent oil consumption through the valve guides while restoring proper gas flow. This Head Intake & Exhaust Valves Seals Cotters for Yamaha is built to withstand high engine RPMs during competitive racing or recreational trail riding.

Built For Performance

• Valves manufactured from high-temp alloy to resist heat warping
• Premium quality valve seals to prevent oil leaks into combustion chambers
• Includes precision-machined cotters for secure valve spring retention
• Designed to meet precise OEM dimensional standards for a perfect fit

Fits These Machines

• for Yamaha YFZ 450 2004-2023
• for Yamaha YFZ 450 R 2004-2023

On-The-Job Use

• Performing complete top-end engine rebuilds on sport ATVs
• Replacing worn or bent valves to restore engine cylinder compression
• Servicing smoky engines with leaking valve stem seals

Specs At A Glance

Good To Know

Q: Do I need to lap the new valves during installation? A: Yes, it is standard practice to lap new valves into the cylinder head seats to ensure a proper, airtight seal.

Q: Does this kit include the valve springs? A: No, this kit includes the valves, stem seals, and cotters, while springs must be sourced separately.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.