Davico 19437 Catalytic Converter - Center

Exact-Fit Catalytic Converter for GM SUVs and Trucks

Davico Exact-Fit Catalytic Converter Part Number 19437 is built for direct replacement on select 2009-2013 Cadillac Escalade, Chevrolet Avalanche, Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, GMC Yukon, and GMC Yukon XL 1500 center exhaust applications. It is designed from original equipment sample parts to match fit and function on OBDII-equipped vehicles.

The Davico Exact-Fit Catalytic Converter line focuses on OE-style fitment and emissions control performance for vehicles that require a precise replacement converter. Part Number 19437 is a center-position converter with a split design that must be clamped or welded together during installation.

Key Features

• Exact-Fit Catalytic Converter for select Cadillac, Chevrolet, and GMC applications
• Designed using original equipment sample parts for proper fit and function
• High-quality emissions-reducing catalyst for OBDII vehicle requirements
• Center position replacement for listed GM full-size SUV and truck platforms
• Gaskets included
• 3-bolt spin flange inlet and 3-bolt fixed flange inlet
• 2.82 in. OD normal ball outlet
• 4 oxygen sensor locations
• 43.5 in. overall length

Detailed Description

Davico Part Number 19437 is an OE-style catalytic converter assembly for 2009-2013 Chevrolet Silverado 1500, 2009-2013 Chevrolet Avalanche, 2009-2013 GMC Sierra 1500, 2009-2013 GMC Yukon XL 1500, 2010-2013 Cadillac Escalade, 2010-2013 Chevrolet Tahoe, 2010-2013 GMC Yukon, and 2011-2012 Chevrolet Suburban 1500 center exhaust positions. It is engineered around original equipment samples so the converter aligns with the factory exhaust layout and supports emissions system operation on OBDII vehicles. This part number is 19437.

Davico’s Exact-Fit Catalytic Converter product line is aimed at direct replacement applications where factory-style dimensions, flange style, and sensor placement matter. For this application, Part Number 19437 uses a split construction and requires clamping or welding during assembly. This part cross-references Walker (e.g., 16437) for the same application.

What This Converter Helps Address

• Check engine light concerns related to catalyst efficiency codes
• Failed emissions inspection caused by a worn or restricted converter
• Exhaust flow loss from a damaged or deteriorated catalytic converter
• Fitment issues when replacing the center converter on listed GM platforms
• Sensor and flange alignment problems during exhaust repair

Installation Notes and Tips

• Compatible With 2009-2013 Chevrolet Silverado 1500, center
• Compatible With 2009-2013 Chevrolet Avalanche, center
• Compatible With 2010-2013 Cadillac Escalade, center
• Compatible With 2010-2013 Chevrolet Tahoe, center
• Compatible With 2009-2013 GMC Sierra 1500, center
• Compatible With 2010-2013 GMC Yukon, center
• Compatible With 2009-2013 GMC Yukon XL 1500, center
• Compatible With 2011-2012 Chevrolet Suburban 1500, center

This converter is not legal for use in California and is illegal for installation in New York on vehicles equipped with California emission systems. Verify emissions certification, flange orientation, and oxygen sensor placement before installation. Davico also notes use of Decarbonizing Induction Kit 1540ea for this application.

Quality Assurance

Davico designs Exact-Fit Catalytic Converters from OE sample parts and uses emissions-reducing catalyst material selected for current OBDII vehicle demands. That approach supports consistent fitment and emissions-system compatibility for the listed GM applications.