Walker 14664 Catalytic Converter - Right

Walker EPA Direct-Fit Catalytic Converter for Navigator

Walker Ultra Direct-Fit Catalytic Converter Part Number 14664 is built for EPA-compliant replacement on select 2005-2006 Lincoln Navigator right-side applications. It is a premium-grade, direct-fit undercar converter designed for OBDII vehicles and built around the ECO III catalyst type for a precise replacement solution.

Key Features

• Federal / EPA direct-fit undercar catalytic converter
• Premium grade construction for replacement use
• ECO III catalyst type
• Overall length: 45.500 inches
• 2-bolt spinner inlet and outlet design
• 2.5 inch OD inlet specification
• Two O2 sensor ports
• Fits 2005-2006 Lincoln Navigator, right

Product Details

Walker EPA Part Number 14664 is engineered as a direct-fit catalytic converter for the right side of the 2005-2006 Lincoln Navigator. The Walker Ultra Direct-Fit line focuses on EPA-standard replacement parts for import and domestic OBDII vehicles, giving technicians a vehicle-specific exhaust solution that matches the original application layout. This unit uses a Federal / EPA direct-fit undercar configuration with a 2-bolt spinner inlet and outlet, plus two oxygen sensor ports for the required emissions system connections. Walker 14664 is also cross-referenced to Gates 52508 for the same application.

Common Issues This Part Can Address

• Failed emissions test caused by a worn catalytic converter
• Check engine light related to catalyst efficiency codes
• Restricted exhaust flow from a deteriorated converter substrate
• Exhaust odor from a converter that no longer processes emissions properly
• Replacement need after corrosion or internal breakdown in the original unit

Installation Notes and Tips

Verify the vehicle is a 2005-2006 Lincoln Navigator right-side application before installation. Confirm the inlet and outlet connection style, the 2.5 inch OD inlet specification, and the presence of two O2 sensor ports before removing the original converter. Because this is a direct-fit undercar catalytic converter, proper alignment with the exhaust system and sensor routing is important for a clean installation.

Quality Assurance

Walker Ultra Direct-Fit Catalytic Converters are positioned as EPA-compliant replacement parts for OBDII vehicles, with application-specific fitment and emissions-system compatibility in mind. Part Number 14664 is built to support a direct replacement on the listed Lincoln Navigator right-side applications.