DJ Rock IV412 Engine Intake Valve

Engine Intake Valve for Ford, Mazda, Mercury

The DJ Rock IV412 engine intake valve is a direct-fit replacement built for precise airflow into the combustion chamber. It is engineered for applications across Ford, Mazda, Mercury, and Lincoln vehicles, including Ford Escape, Fusion, Taurus, and Mercury Mariner and Sable models.

Key Features

• Nitride-coated intake valve for improved wear resistance and corrosion protection
• 35 mm valve head diameter for application-specific fitment
• 114.3 mm overall length with a 6 mm stem diameter
• 3-groove stem design for proper valvetrain retention
• Premium-grade replacement for intake valve service
• Fits 1996-2012 Ford, Mazda, Mercury, and Lincoln applications listed below

Detailed Description

Part number IV412 is an engine intake valve designed to open at the correct camshaft interval so the air-fuel mixture can enter the combustion chamber efficiently. The nitride-coated surface helps resist friction and corrosion while supporting heat dissipation under high-temperature engine conditions. With a 35 mm head diameter, 6 mm stem diameter, and 114.3 mm overall length, this valve is built for direct replacement in the specified Ford Escape, Ford Fusion, Mazda 6, Mercury Mariner, and related applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Part Helps Address

• Low compression caused by a worn or damaged intake valve
• Rough idle related to poor intake sealing
• Loss of power from restricted cylinder filling
• Valve wear from heat, friction, or corrosion
• Engine breathing issues in high-mileage valvetrain service

Installation Notes and Tips

Verify valve head diameter, stem diameter, groove count, and overall length before installation. Match the part to the exact engine application and inspect related valvetrain components such as valve guides and stem seals during service. Professional cylinder head installation and valve seating checks are recommended for proper sealing and operation.

Quality Assurance

DJ Rock IV412 is manufactured to meet or exceed OEM quality standards using heat-resistant alloy construction and a nitride-coated finish for durability in demanding engine environments.