Walker 31618 Exhaust Pipe Flange Gasket - Converter To H-Pipe

Walker Exhaust Pipe Flange Gasket Overview

The Walker 31618 exhaust pipe flange gasket is designed for reliable sealing in Chevrolet and GMC heavy-duty trucks. Engineered with graphoil material, this 3-bolt gasket ensures a secure fit and effective exhaust system performance for models like the Chevrolet C2500 and GMC K3500.

• Compatible with Chevrolet C2500, C2500 Suburban, C3500, GMC K2500, K2500 Suburban, and K3500
• 3-bolt gasket type with precise bolt hole spacing
• Constructed from durable graphoil material for heat resistance
• Thickness of 0.066 inches for optimal sealing
• Port dimensions: Port 1 (3.125" x 3.125"), Port 2 (3.75" x 3.75")
• Bolt hole diameter of 0.375 inches with bolt hole centers at 9.875" and 3.125"

Detailed Product Description

The Walker 31618 exhaust pipe flange gasket is specifically designed to meet the sealing requirements of exhaust systems on Chevrolet and GMC heavy-duty trucks, including the C2500, C2500 Suburban, C3500, K2500, K2500 Suburban, and K3500 models. This gasket features a 3-bolt design with bolt hole centers measuring 9.875 inches and 3.125 inches, ensuring precise alignment during installation. The bolt holes have a diameter of 0.375 inches, accommodating standard exhaust flange bolts.

Manufactured from graphoil, a material known for its excellent heat resistance and durability, this gasket maintains a consistent seal under high-temperature exhaust conditions. The gasket thickness of 0.066 inches provides a reliable barrier against exhaust leaks while accommodating flange surface irregularities. Port dimensions are carefully engineered with Port 1 measuring 3.125 inches in length and width, and Port 2 measuring 3.75 inches in length and width, supporting proper exhaust flow and system integrity.

Common Applications and Issues Addressed

• Prevents exhaust leaks caused by worn or damaged gaskets
• Eliminates exhaust noise from flange gaps
• Maintains proper exhaust backpressure for engine performance
• Resists degradation from high heat and corrosive exhaust gases
• Ensures secure flange connection on Chevrolet and GMC heavy-duty trucks

Installation Notes and Tips

• Ensure flange surfaces are clean and free of debris before installation
• Verify bolt hole alignment using the 3-bolt pattern and specified bolt hole centers
• Use appropriate torque specifications for flange bolts to avoid gasket damage
• Inspect exhaust components for warping or damage prior to gasket replacement
• Replace gasket whenever exhaust flange is disassembled to maintain seal integrity

Quality Assurance and Warranty

Walker exhaust gaskets are manufactured to meet industry standards for durability and performance. The 31618 gasket is constructed from high-quality graphoil material to withstand the thermal and mechanical stresses of heavy-duty exhaust systems. While specific warranty details may vary, Walker products typically come with a limited warranty against manufacturing defects, ensuring confidence in product reliability for Chevrolet and GMC truck owners.