AP Exhaust 645454 Catalytic Converter - Right

AP Exhaust Catalytic Converter for Chevrolet and GMC Trucks

The AP Exhaust catalytic converter part number 645454 is designed for direct-fit replacement on select Chevrolet and GMC heavy-duty trucks. Engineered with durable stainless steel and a ceramic substrate, this catalytic converter meets Federal EPA standards for emissions control.

Key Features of AP Exhaust Catalytic Converter 645454

• Constructed from corrosion-resistant stainless steel body material
• Includes inlet gasket for secure sealing
• Features a 2 bolt welded flange inlet type for precise fitment
• Equipped with one O2 sensor port for accurate emissions monitoring
• Outlet type is a 2.85 inch outside diameter pipe with included outlet hardware
• Overall length measures 30.5 inches for proper installation
• Ceramic substrate designed to reduce harmful exhaust emissions
• Federal / EPA direct-fit type ensures compliance with emissions regulations

Detailed Product Description

This AP Exhaust catalytic converter 645454 is specifically engineered for compatibility with Chevrolet Sierra 1500 HD, 2500 HD, 3500, 3500 Classic, and Silverado 1500 HD, 2500 HD, 3500, 3500 Classic models. The stainless steel construction provides long-lasting durability against rust and corrosion, essential for heavy-duty truck applications. The ceramic substrate efficiently converts exhaust gases to meet Federal EPA emissions standards. The inlet features a 2 bolt welded flange design, allowing for a secure and leak-free connection, while the outlet pipe with a 2.85 inch outside diameter and included hardware facilitates straightforward installation. The single O2 sensor port supports factory sensor placement to maintain proper engine management and emissions control.

Common Applications and Issues Addressed

• Replacement for damaged or clogged catalytic converters on Chevrolet and GMC heavy-duty trucks
• Restores proper exhaust flow and reduces harmful emissions
• Helps resolve check engine light codes related to catalytic converter efficiency
• Improves vehicle compliance with Federal and EPA emissions regulations
• Addresses exhaust leaks caused by worn or failed converter gaskets

Installation Notes and Tips

Ensure the vehicle is cooled down before beginning installation. This catalytic converter includes an inlet gasket and outlet hardware for proper sealing and attachment. The 2 bolt welded flange inlet requires matching flange surfaces for a secure fit. Verify the O2 sensor port aligns with the factory sensor location to avoid sensor damage or improper readings. Professional installation is recommended to ensure compliance with emissions standards and proper exhaust system function.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet Federal EPA direct-fit requirements, ensuring regulatory compliance and reliable performance. The stainless steel body and ceramic substrate materials are selected for durability and effective emissions control. Warranty information is provided by AP Exhaust and should be confirmed at the time of purchase.