BCBC V5805S Engine Exhaust Valve

Engine Exhaust Valve Overview

Melling V5805S is a standard replacement engine exhaust valve built for select Audi and Volkswagen applications. It uses steel construction, a coated finish, and precision dimensions to support consistent sealing and heat management in the valve train.

Key Features

• Steel exhaust valve with a coated finish for added durability.
• Standard replacement design for OEM-style service work.
• 45-degree seat angle for proper valve seating.
• 1.177 in. valve head diameter and 0.234 in. stem diameter.
• Fits select Audi A4, TT, A6 Quattro, S4, and Volkswagen Golf, Jetta, Passat, and Beetle applications.

Detailed Description

The Melling V5805S exhaust valve is engineered for engines that need accurate valve control, dependable heat resistance, and stable long-term operation. Its steel construction and coated surface help it handle exhaust-side temperatures, while the standard replacement profile supports service on a wide range of Audi and Volkswagen engines. This part number, V5805S, is used across multiple OE-style applications where correct valve geometry and material quality matter. This part cross-references DNJ (e.g., EV800, IV800) for the same application.

What It Helps Address

• Burnt or worn exhaust valves.
• Poor sealing at the valve seat.
• Loss of compression from valve wear.
• Heat-related valve damage in the exhaust side of the engine.

Installation Notes and Tips

Verify valve head diameter, stem diameter, length, and seat angle before installation. Match the part to the engine’s original specifications and inspect the valve seat, guides, and related valvetrain components during service. Confirm fitment for the exact Audi or Volkswagen engine application before assembly.

Quality Assurance

Melling uses precision engineering, alloy selection, and advanced manufacturing processes to produce exhaust valves with high fatigue strength and heat resistance. V5805S is built to meet the specifications required for durable engine service.