Davico 17451 Catalytic Converter - Front

Exact-Fit Catalytic Converter for Sentra

Davico Exact-Fit Catalytic Converter 17451 is built for direct replacement on select Nissan Sentra front applications. It is engineered from original equipment sample parts to match fit and function, with an emissions-reducing catalyst formulated for OBDII vehicle demands.

The Exact-Fit Catalytic Converter line focuses on OE-style installation and proper exhaust alignment for repair work on the Nissan Sentra. This part number, 17451, is designed for front manifold converter applications where flange style and sensor placement must match the original layout.

• Fits 2013-2018 Nissan Sentra, Front; California Emissions; Manifold Converter; Vehicles with 3 converter system; Not legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems
• Fits 2009-2012 Nissan Sentra, Front; California Emissions; Manifold Converter; Not legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems
• 5 bolt fixed flange inlet for OE-style exhaust connection
• 2 bolt fixed flange outlet for direct-fit alignment
• Includes gasket(s) for the listed application
• 1 O2 sensor location
• Overall length: 14 inches

Detailed Product Overview

Davico part 17451 is a catalytic converter for Nissan Sentra front exhaust positions from 2009-2018, with fitment split between 2009-2012 and 2013-2018 model years. It uses OE sample-based design to help maintain proper mounting, sensor placement, and exhaust routing on the vehicle. The Exact-Fit Catalytic Converter construction is aimed at replacing the original manifold converter with the correct flange configuration and emissions-focused catalyst performance.

This part cross-references Walker Exhaust (e.g., 16451, 16452) for the same application.

Common Repair Uses

• Replacing a failed front catalytic converter on a Nissan Sentra
• Addressing exhaust leak concerns at the manifold converter connection
• Restoring proper OBDII catalyst monitoring after converter deterioration
• Correcting fitment issues caused by mismatched flange or sensor layout
• Repairing emissions-related drivability or inspection failures tied to converter efficiency

Installation Notes

Verify the vehicle’s emissions configuration, since this part is listed for California Emissions applications and includes legal-use restrictions for California and certain New York installations. Confirm the front position, 5 bolt fixed flange inlet, 2 bolt fixed flange outlet, and 1 O2 sensor location before installation. Compare the original converter length and mounting points to the 14-inch overall length for proper alignment.

Quality Assurance

Davico designs Exact-Fit Catalytic Converters using original equipment sample parts and emissions-reducing catalyst materials to support proper fit and function on OBDII vehicles. Part number 17451 is built to match the listed Nissan Sentra applications with OE-style geometry and emissions-focused construction.