Davico 19618 Catalytic Converter - Rear

Exact-Fit Catalytic Converter Overview

Davico Part Number 19618 is an exact-fit catalytic converter built for direct replacement on select heavy-duty GM applications. It uses OE sample parts as the reference for fit and function, and it is configured for OBDII emissions demands.

Key Features

• Exact-Fit Catalytic Converter line for OE-style replacement
• High-quality emissions-reducing catalyst
• 3-bolt fixed flange inlet and slip-fit outlet
• Includes gaskets
• Configured for 2 O2 sensors

Detailed Fitment and Design

This Davico catalytic converter is engineered around original equipment sample parts to match the intended installation and operating requirements of the application. The 33-inch overall length, 12-inch width, and 5.5-inch height reflect a direct-fit layout, while the fixed-flange inlet and slip-fit outlet support a factory-style exhaust connection. Part Number 19618 is listed for rear installation on 1996-2000 Chevrolet C2500, C3500, K2500, K3500, 1996-1999 Chevrolet C2500 Suburban and K2500 Suburban, and 1996-1999 GMC C2500, C2500 Suburban, C3500, and K3500. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Failed catalytic converter efficiency codes
• Restricted exhaust flow from a worn converter
• Emissions test failure caused by converter degradation
• Exhaust leaks at the converter connection points
• O2 sensor-related drivability issues tied to converter performance

Installation Notes and Quality

Verify rear-position fitment and emissions restrictions before installation, since this application is not legal for use in California and is illegal for installation in New York on vehicles equipped with California emission systems. The converter is built for OBDII vehicles and uses a 3-bolt fixed flange inlet with a slip-fit outlet. Davico Part Number 19618 is part of the Exact-Fit Catalytic Converter line, which focuses on OE-referenced fit and emissions control performance.