AP Exhaust 645279 Catalytic Converter - Right

AP Exhaust Catalytic Converter for Lincoln Navigator

The AP Exhaust catalytic converter part number 645279 is designed specifically for the Lincoln Navigator, providing a direct-fit solution that meets Federal and EPA standards. Constructed with durable stainless steel and a ceramic substrate, this catalytic converter ensures reliable performance and emissions control.

• Body material: corrosion-resistant stainless steel
• Federal / EPA direct-fit catalytic converter
• Inlet type: 2 bolt loose flange with female flare
• Outlet type: 2.50" ID pipe with spherical flare
• Includes 2 O2 sensor ports for accurate emissions monitoring
• Overall length of 45 inches for precise fitment
• No inlet or outlet gaskets or hardware required
• Ceramic substrate for effective catalytic conversion

Product Details and Specifications

This AP Exhaust catalytic converter (part number 645279) is engineered to fit the Lincoln Navigator with exacting standards. The stainless steel body offers resistance to rust and corrosion, extending the life of the component. The ceramic substrate inside efficiently converts harmful exhaust gases into less harmful emissions, helping your vehicle comply with environmental regulations. The inlet features a 2 bolt loose flange with a female flare, while the outlet is a 2.50" ID pipe with a spherical flare, ensuring a secure and leak-free connection. Two O2 sensor ports are integrated to maintain proper engine management and emissions control.

Compatible Vehicles and Applications

• Compatible with Lincoln Navigator models requiring a Federal / EPA direct-fit catalytic converter
• Designed to replace factory catalytic converters without modification
• Ideal for addressing emissions-related issues and restoring exhaust system function

Installation Notes and Tips

• No inlet or outlet gaskets or hardware are required for installation
• Ensure proper alignment of the 2 bolt loose flange and flared connections for a secure fit
• Check O2 sensor ports for correct sensor placement to avoid engine codes
• Professional installation is recommended to maintain emissions compliance

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 are designed for durability and long service life. While specific warranty details are not provided, AP Exhaust products typically adhere to industry quality standards to ensure reliable performance.