BCBC V5306 Engine Exhaust Valve

Engine Exhaust Valve Overview

The Melling V5306 is a standard replacement engine exhaust valve built for Toyota applications that require precise valve-train dimensions and durable heat resistance. It is a steel valve with a coated finish, made to support consistent sealing and exhaust flow in service.

Compatible with Toyota Tacoma, Toyota Tundra, Toyota 4Runner, and Toyota T100 applications, the V5306 is a fitment-based replacement for stock engine builds. The Melling V5306 is specified with a 1.075-inch valve head diameter, 3.74-inch overall length, 0.236-inch stem diameter, and a 45-degree seat angle.

• Steel construction for exhaust-valve service
• Coated finish for added surface protection
• Standard replacement grade for OEM-style service
• Single lock groove design
• Built to match listed valve-train dimensions

Detailed Application Notes

This exhaust valve is intended for engines that need a direct-fit replacement with the listed dimensions and stock application notes. It is a practical choice for maintenance or rebuild work on Toyota Tacoma, Toyota Tundra, Toyota 4Runner, and Toyota T100 engines where valve size, stem diameter, and seat angle must align with the original specification. Part number V5306 is also referenced by cross numbers such as EV958 and 10-10306S for the same application.

Common Repair Uses

• Restoring exhaust-valve sealing after wear or heat damage
• Replacing a valve with incorrect stem or head dimensions
• Addressing compression loss related to valve sealing issues
• Supporting engine rebuilds that require standard replacement parts

Installation Notes and Tips

Verify valve head diameter, stem diameter, length, and seat angle against the cylinder head specification before installation. Confirm that the application calls for a standard replacement exhaust valve and that the stock notes match the engine build. Professional cylinder head service practices should be followed during inspection, cleaning, and final assembly.

Quality Assurance

Melling uses precision manufacturing, selected alloy materials, and controlled production methods to meet demanding exhaust-valve specifications. The V5306 is engineered for fatigue resistance, heat tolerance, and dependable service in OEM and performance-oriented applications.