AP Exhaust 645430 Catalytic Converter

AP Exhaust Catalytic Converter for Ford Explorer and Mercury Mountaineer

The AP Exhaust 645430 catalytic converter is designed as a direct-fit replacement for select Ford and Mercury models, including the Explorer, Explorer Sport Trac, and Mountaineer. Constructed with durable stainless steel and a ceramic substrate, this federal/EPA-compliant converter ensures reliable emissions control and long-lasting performance.

• Body material: corrosion-resistant stainless steel
• Federal/EPA direct-fit catalytic converter
• Inlet and outlet types: 2 bolt loose flange with spherical flare (inlet), 2 bolt welded flange with gasket stub (outlet)
• Four O2 sensor ports for accurate emissions monitoring
• Overall length of 44.75 inches for precise fitment
• Includes outlet gasket and hardware; inlet gasket and hardware not required
• Ceramic substrate for effective catalytic conversion

Durable Construction and Precise Fitment

The AP Exhaust catalytic converter part number 645430 is engineered with a stainless steel body to resist rust and corrosion, extending the life of the exhaust system. Its ceramic substrate efficiently converts harmful exhaust gases into less harmful emissions, meeting federal and EPA standards. The converter features a 2 bolt loose flange with spherical flare on both inlet sides and a 2 bolt welded flange with gasket stub on the outlet side, ensuring a secure and leak-free connection. Four O2 sensor ports allow for proper sensor placement, maintaining engine performance and emissions compliance.

Compatible Vehicles and Applications

This catalytic converter is compatible with the following vehicles:

• Ford Explorer
• Ford Explorer Sport Trac
• Mercury Mountaineer

It is designed to replace the factory catalytic converter directly, making it suitable for emissions system repairs and replacements on these models.

Common Issues Addressed by This Catalytic Converter

• Failed or clogged factory catalytic converter causing poor emissions
• Check engine light triggered by O2 sensor or emissions faults
• Reduced engine performance due to exhaust restrictions
• Failed emissions tests related to catalytic converter efficiency
• Excessive exhaust noise from damaged converter components

Installation Notes and Tips

The AP Exhaust 645430 catalytic converter is designed for direct-fit installation on compatible Ford and Mercury models. No inlet gasket or hardware is required, simplifying the replacement process. Ensure all O2 sensors are properly reinstalled in the four sensor ports to maintain accurate emissions monitoring. Verify flange connections are secure and use the included outlet gasket and hardware to prevent exhaust leaks.

Quality Assurance and Warranty

Manufactured to meet federal and EPA emissions standards, this catalytic converter undergoes rigorous quality control to ensure durability and performance. AP Exhaust products typically come with a limited warranty covering defects in materials and workmanship. Please refer to the manufacturer’s warranty documentation for specific terms and conditions.