BCBC V5809 Engine Exhaust Valve

Overview

The Melling V5809 is a standard replacement engine exhaust valve built for precise valve train service. It uses stainless steel construction and is specified for Mini applications including the Cooper, Cooper Countryman, and Cooper Paceman.

Key Features

• Stainless steel exhaust valve construction for heat resistance and durability.
• Standard replacement grade for engine valve train service.
• Valve head diameter of 26.0 mm and stem diameter of 5.0 mm.
• Overall length of 110.0 mm for application-specific fitment.
• Three lock grooves for compatible valve train setups.

Detailed Description

Melling V5809 is an engine exhaust valve engineered for OEM-style replacement in select Mini engines. The stainless steel design and high-fatigue material selection support consistent exhaust-side operation under elevated temperature and load. This part number, V5809, is listed for 2007-2015 Mini Cooper, 2011-2016 Mini Cooper Countryman, and 2013-2016 Mini Cooper Paceman applications, making it a fitment-specific choice for valve train repair. This part cross-references Monroe Shocks & Struts (e.g., 10-13325, P5309) for the same application.

What It Is Used For

• Replacing a worn or damaged exhaust valve during cylinder head service.
• Restoring proper exhaust flow control in the valve train.
• Addressing valve wear from heat, fatigue, or extended service life.
• Supporting repair of compression loss related to valve sealing issues.

Installation Notes and Tips

Verify valve head diameter, stem diameter, and overall length against the original component before installation. Confirm compatibility with the cylinder head and related valve train components for the specific Mini Cooper, Cooper Countryman, or Cooper Paceman application. Professional cylinder head service practices are recommended for inspection, seating, and final assembly.

Quality Assurance

Melling states that its exhaust valves are manufactured with precision processes and superior-grade alloy materials to meet demanding specifications. The V5809 is a standard replacement part designed for dependable service in OEM and performance-oriented applications.