AP Exhaust 8408 Exhaust Pipe Flange Gasket - Left or Right

AP Exhaust 8408 Exhaust Pipe Flange Gasket Overview

The AP Exhaust 8408 exhaust pipe flange gasket is designed to provide a reliable seal for exhaust systems on select GM vehicles. With precise dimensions, this gasket ensures a secure fit and helps maintain exhaust integrity for models like the Chevrolet Silverado and GMC Sierra.

• Inside diameter: 2-5/16 inches for accurate pipe fitment
• Outside diameter: 3-1/8 inches to match flange specifications
• Compatible with multiple GM makes including Cadillac, Chevrolet, GMC, and Hummer
• Designed for exhaust pipe flange sealing applications
• Durable construction suitable for heavy-duty use

Detailed Product Description

The AP Exhaust 8408 exhaust pipe flange gasket is engineered to meet the exacting standards required for exhaust system repairs and maintenance. Featuring an inside diameter of 2-5/16 inches and an outside diameter of 3-1/8 inches, this gasket fits securely between exhaust pipe flanges to prevent leaks and ensure proper exhaust flow. It is compatible with a range of GM vehicles, including the Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, and Hummer H2, among others. This gasket is ideal for use in exhaust systems where a precise flange seal is critical to performance and emissions compliance.

Compatible Vehicles and Applications

• Cadillac Escalade
• Chevrolet Avalanche 1500 and Silverado 1500 Classic
• GMC Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD
• Hummer H2
• Chevrolet Express 1500, 2500, and 3500
• GMC Savana 1500, 2500, and 3500
• Chevrolet Suburban 1500 and Tahoe
• GMC Yukon and Yukon XL 1500

Common Issues Addressed by This Gasket

• Exhaust leaks at pipe flange connections
• Noise caused by escaping exhaust gases
• Reduced engine performance due to exhaust system leaks
• Failed emissions tests related to exhaust leaks
• Corrosion or damage to existing exhaust gaskets

Installation Notes and Tips

Ensure the exhaust flange surfaces are clean and free of debris before installing the AP Exhaust 8408 gasket. Proper alignment of the gasket with the flange is critical to prevent leaks. Use appropriate torque specifications for flange bolts to avoid over-tightening, which can damage the gasket. This gasket is designed for direct replacement and fits OEM flange dimensions on compatible GM vehicles.

Quality Assurance and Warranty

AP Exhaust products are manufactured to meet industry standards for durability and performance. The 8408 exhaust pipe flange gasket undergoes quality checks to ensure consistent fit and function. While specific warranty details are not provided, AP Exhaust typically supports their products with limited warranties against manufacturing defects.