AP Exhaust 644136 Catalytic Converter

AP Exhaust Catalytic Converter for Volkswagen Vehicles

The AP Exhaust catalytic converter part number 644136 is designed specifically for Volkswagen models including Beetle, Golf, Jetta, and Passat. Engineered to meet Federal and EPA direct-fit standards, this catalytic converter ensures proper emissions control and reliable performance.

• Constructed with durable stainless steel body material for corrosion resistance
• Features a ceramic substrate for effective catalytic conversion
• Includes two O2 sensor ports for accurate emissions monitoring
• Inlet type is a 4 bolt welded connection for secure fitment
• Outlet diameter measures 2 1/4 inches outside diameter
• Overall length of 40 inches to match OEM specifications
• Comes with inlet and outlet hardware for installation

Product Details and Specifications

This AP Exhaust catalytic converter (part number 644136) is built with a stainless steel body that offers enhanced durability against rust and heat. The ceramic substrate inside is designed to efficiently convert harmful exhaust gases into less harmful emissions, complying with Federal and EPA regulations. The converter includes two O2 sensor ports, allowing for precise oxygen sensor placement to maintain engine performance and emissions control. The inlet connection uses a 4 bolt welded flange, ensuring a secure and leak-free fit, while the outlet features a 2 1/4 inch outside diameter pipe for compatibility with the vehicle’s exhaust system. With an overall length of 40 inches, this catalytic converter is a direct-fit replacement for Volkswagen Beetle, Golf, Jetta, and Passat models requiring Federal/EPA compliant parts.

Common Applications and Problem Solving

• Replaces faulty or clogged catalytic converters causing poor emissions performance
• Restores proper function to the exhaust system to pass emissions testing
• Eliminates check engine light issues related to O2 sensor readings
• Reduces exhaust noise and improves engine efficiency
• Addresses corrosion or physical damage to the original catalytic converter

Installation Notes and Tips

Ensure compatibility with your specific Volkswagen model and year before installation. The 4 bolt welded inlet flange requires proper alignment and torque to prevent exhaust leaks. The two O2 sensor ports must be matched with the vehicle’s sensor locations for accurate emissions monitoring. Use the included inlet and outlet hardware to secure the catalytic converter in place. It is recommended to inspect surrounding exhaust components for wear or damage during installation.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet Federal and EPA standards for emissions control. The stainless steel construction and ceramic substrate provide long-lasting durability. Part number 644136 is tested for fit and function on Volkswagen Beetle, Golf, Jetta, and Passat models. Warranty information is available from the manufacturer and should be confirmed at the time of purchase.