Walker 31637 Exhaust Pipe Flange Gasket - Front Converter To Rear Converter

Walker Exhaust Pipe Flange Gasket Overview

The Walker 31637 exhaust pipe flange gasket is engineered for reliable sealing in exhaust systems of select Ford, Mazda, and Mercury vehicles. Designed to maintain a secure connection between exhaust pipes, this gasket supports proper exhaust flow and reduces leaks in models like the Ford Explorer and Mazda B3000.

• Compatible with Ford, Mazda, and Mercury models including B3000, B4000, Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, and Ranger
• 3-bolt gasket type with precise bolt hole spacing: 5.5 inches and 3 inches center to center
• Constructed from high temperature graphite with a wire mesh core for durability and heat resistance
• Port dimensions: 4.75 inches length by 2.375 inches width
• Thickness of 0.051 inches ensures a tight seal without compromising fitment
• Bolt hole diameter of 0.5 inches for secure fastening

Technical Details and Material Specifications

The Walker 31637 exhaust pipe flange gasket features a 3-bolt design optimized for specific exhaust flange connections. The bolt hole centers measure 5.5 inches and 3 inches respectively, accommodating the flange layout on compatible vehicles. Its thickness of 0.051 inches balances sealing capability with proper fitment, preventing exhaust leaks while withstanding thermal expansion.

Manufactured from high temperature graphite combined with a wire mesh core, this gasket offers resistance to extreme heat and exhaust gases, ensuring longevity and consistent performance. The port size of 4.75 inches by 2.375 inches matches the exhaust pipe dimensions on Ford Explorer and Mazda B3000 models, among others.

Compatible Vehicles and Applications

This exhaust pipe flange gasket is compatible with a range of Ford, Mazda, and Mercury vehicles, including:

• Ford Explorer, Explorer Sport, Explorer Sport Trac
• Ford Mountaineer and Ranger
• Mazda B3000 and B4000
• Mercury models sharing similar exhaust configurations

Use the Walker 31637 gasket when replacing or repairing exhaust pipe flanges to restore proper sealing and prevent exhaust leaks.

Common Issues Addressed by This Gasket

• Exhaust leaks caused by worn or damaged flange gaskets
• Noise and fumes entering the cabin due to poor exhaust sealing
• Reduced engine performance from exhaust backpressure loss
• Corrosion or heat damage compromising exhaust flange connections
• Difficulty maintaining proper exhaust system alignment

Installation Notes and Tips

• Ensure mating flange surfaces are clean and free of debris before installation
• Verify bolt hole alignment matches the 3-bolt pattern with 5.5 and 3 inch spacing
• Use appropriate torque specifications to avoid gasket damage or leaks
• Inspect exhaust pipes and flanges for corrosion or warping prior to gasket replacement
• Replace hardware if bolts or nuts show signs of wear or damage

Quality Assurance and Warranty

Walker exhaust gaskets are manufactured to meet industry standards for durability and heat resistance. The 31637 gasket is constructed with high temperature graphite and wire mesh core materials to ensure consistent sealing performance under demanding conditions. While specific warranty details may vary, Walker products typically come with a limited warranty against defects in material and workmanship.