Walker 16210 Catalytic Converter - Rear

Walker EPA Direct-Fit Catalytic Converter

Walker EPA 16210 is a direct-fit catalytic converter built for specific rear-position applications on select 2002-2004 INFINITI I35 and 2002-2003 Nissan Maxima models. It uses a stainless steel body with a ceramic substrate and welded 2-bolt flange connections for an OE-style exhaust replacement.

The Walker Ultra Direct-Fit line is engineered for EPA-compliant performance on 1996-and-newer OBDII vehicles, with application-specific fitment for import and domestic platforms. Part number 16210 is a focused replacement for drivers needing a rear catalytic converter for the Nissan Maxima or INFINITI I35.

• Direct-fit design for specific rear exhaust applications
• Stainless steel body with round housing
• Ceramic substrate material
• 1 inlet and 1 outlet with 2-bolt welded flanges
• EPA standards-focused replacement for OBDII vehicles
• Overall length: 12.375 in.
• Body dimensions: 4.125 in. H x 7.5 in. L x 4.125 in. W
• Fits rear position only

Fitment Details

• Fits 2002-2004 INFINITI I35, rear. Notes: Fits Fed. & Calif. Emission Models; not legal for sale or use in California and other CARB-compliant states; legal in New York and Maine on EPA Federal Emission Equipped Vehicles only; exhaust gasket is recommended; additional part(s) needed to complete installation: 2 of 31540; Ultra Direct Fit Type; EPA.
• Fits 2002-2003 Nissan Maxima, rear. Notes: Fits Fed. & Calif. Emission Models; not legal for sale or use in California and other CARB-compliant states; legal in New York and Maine on EPA Federal Emission Equipped Vehicles only; exhaust gasket is recommended; additional part(s) needed to complete installation: 2 of 31540; Ultra Direct Fit Type; EPA.

What It Helps Address

• Failed catalytic converter efficiency codes
• Exhaust restriction from a damaged converter core
• Rattling or deteriorated converter housing
• Exhaust leaks at the converter flange connection
• Emissions-test failures on the listed applications

Installation Notes

Confirm rear-position fitment before ordering. An exhaust gasket is recommended, and installation requires 2 of part 31540 to complete the job. The converter uses 2-bolt welded flange inlet and outlet connections, so matching the existing exhaust layout is important for proper installation.

Quality Assurance

Walker EPA 16210 is part of the Walker Ultra Direct-Fit catalytic converter line, which is built to meet EPA standards for specific OBDII applications. This part cross-references Walker Exhaust 51108 for the same application.