Davico 18538 Catalytic Converter - Rear

Exact-Fit Rear Catalytic Converter for Quest

Restore exhaust flow and emissions control with the Davico Exact-Fit Catalytic Converter, part number 18538. Built from original equipment sample parts, this rear catalytic converter is shaped for proper fitment on 2011-2014 Nissan Quest applications and uses a high-quality emissions-reducing catalyst for OBDII-equipped vehicles.

Key Features

• Exact-Fit Catalytic Converter line engineered from OE sample parts
• Fits 2011-2014 Nissan Quest, rear
• Davico 18538 for direct replacement planning
• 3-bolt fixed flange inlet 1
• 3-bolt fixed flange inlet 2
• 2-bolt fixed flange outlet
• Overall length: 46 inches
• Gaskets included: Yes

Product Details

The Davico Exact-Fit Catalytic Converter line is built to match original equipment dimensions and connection points, helping ensure proper installation and function on the vehicle. This Davico 18538 rear converter is designed for the Nissan Quest and uses a catalyst formulated to address emissions requirements on current OBDII systems. For buyers searching for a rear catalytic converter for 2011-2014 Nissan Quest, this part provides the OE-style layout needed for a cleaner replacement path.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part May Address

• Failed catalytic converter efficiency codes
• Exhaust restriction from a deteriorated converter
• Rattling or broken internal catalyst substrate
• Emissions test failure related to rear converter performance
• Exhaust leaks at flange connection points

Installation Notes and Tips

Verify rear-position fitment before ordering: Fits 2011-2014 Nissan Quest, rear. Confirm flange orientation, overall length, and gasket requirements against the existing exhaust assembly. This converter uses 3-bolt fixed flanges at both inlets and a 2-bolt fixed flange at the outlet, so matching the vehicle’s exhaust connections is important for a proper install. California and New York emissions restrictions apply as noted in the fitment data.

Quality Assurance

Davico designs the Exact-Fit Catalytic Converter line using OE sample parts to support correct fit and function, and the catalyst material is selected for emissions reduction on OBDII vehicles. Part number 18538 is built as a direct-fit replacement for the listed Nissan Quest applications.