DJ Rock EV800 Engine Exhaust Valve

Overview

The DJ Rock EV800 is a direct-fit engine exhaust valve built for applications that require precise exhaust-gas control and stable sealing under high heat. It is engineered for Audi and Volkswagen engines where correct valve dimensions, stem size, and coating matter for reliable service.

Use the EV800 when replacing a worn exhaust valve in compatible Audi A4, Audi A6, Audi TT, Volkswagen Golf, Volkswagen Jetta, Volkswagen Beetle, Volkswagen Passat, Audi Allroad Quattro, Audi A4 Quattro, Audi A6 Quattro, Audi TT Quattro, or Audi S4 applications.

Key Features

• Nitride-coated valve surface for improved wear resistance and corrosion protection.
• 29.9 mm valve head diameter for application-specific exhaust-valve fitment.
• 5.94 mm stem diameter and 103.8 mm overall length for direct replacement use.
• Three-groove design for the specified valvetrain configuration.
• Premium-grade exhaust valve construction for demanding engine environments.

Detailed Description

The EV800 exhaust valve is designed to control the release of burnt gases from the combustion chamber into the exhaust system, supporting proper engine breathing and efficiency. DNJ Engine Exhaust Valves are manufactured to meet or exceed OEM quality standards and use heat-resistant alloy construction with a black nitride coating to help reduce friction, improve surface durability, and resist thermal stress. This part number, EV800, is listed for a wide range of Audi and Volkswagen engines, including Audi A4 and Volkswagen Passat applications, where exact valve geometry is critical. If you are servicing an Audi TT, Audi A6, or Volkswagen Jetta engine, EV800 provides the specified dimensions and coating required for the application.

What It Helps Address

• Burnt or damaged exhaust valves.
• Loss of compression from poor valve sealing.
• Excessive wear from high exhaust temperatures.
• Corrosion or surface fatigue on the valve stem and head.
• Incorrect replacement dimensions during engine repair.

Installation Notes and Tips

Verify valve head diameter, stem diameter, overall length, and groove count before installation. Match the exhaust-valve application exactly to the engine specification, since this part is not universal. Confirm the vehicle listing for your Audi or Volkswagen engine before assembly, and inspect related valvetrain components such as guides and stem seals during service.

Quality Assurance

DNJ Engine Exhaust Valves are manufactured to meet or exceed OEM quality standards and are built with heat-resistant materials and a nitride-coated surface for durability in high-temperature exhaust service.