HomeExhaust > Catalytic ConverterDavico 19412 Catalytic Converter - Center
Part #: 19412

Davico 19412 Catalytic Converter - Center

Exact-Fit Catalytic Converter, Center
⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
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$659.86Free Shipping
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Exact-Fit Catalytic Converter, Center
🚗Fitment: Buick, Chevrolet, and GMC, Envoy XL, Envoy XUV, Rainier, and Trailblazer EXT
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Davico Exact-Fit Catalytic Converter Overview

The Davico Exact-Fit Catalytic Converter 19412 is designed specifically for select Buick, Chevrolet, and GMC models. Engineered to meet OEM specifications, this catalytic converter ensures proper fit and function for vehicles like the Buick Rainier, Chevrolet Trailblazer EXT, and GMC Envoy XL and XUV.

  • Compatible with Buick Rainier, Chevrolet Trailblazer EXT, GMC Envoy XL, and Envoy XUV
  • Includes gaskets for a secure seal
  • Features 3 bolt fixed flange inlet and 3 bolt spin flange inlet
  • Equipped with 4 O2 sensor ports for accurate emissions monitoring
  • Overall length of 54.5 inches with a height of 12.5 inches and width of 30 inches
  • Outlet with 2 bolt fixed flange for reliable connection
  • Supports use with Davico Decarbonizing Induction Kit 1540ea

Exact-Fit Catalytic Converter Product Line Details

The Exact-Fit Catalytic Converter line by Davico focuses on delivering direct replacement parts that match the original equipment in dimensions and mounting points. This ensures straightforward installation and compatibility with factory components. The 19412 model maintains the precise inlet and outlet flange types and sensor ports required for proper operation in the specified Buick, Chevrolet, and GMC vehicles.

Product Features and Specifications

This catalytic converter features a 3 bolt fixed flange on one inlet and a 3 bolt spin flange on the other, allowing for secure and adaptable connections within the exhaust system. The outlet uses a 2 bolt fixed flange, maintaining OEM-style fitment. With four O2 sensor ports, it supports accurate emissions control and engine management. The included gaskets help ensure a tight seal to prevent exhaust leaks. Its dimensions—12.5 inches in height, 30 inches in width, and 54.5 inches overall length—are tailored to fit the exhaust layout of the compatible vehicles.

Common Applications and Problem Resolution

  • Replacement for damaged or clogged catalytic converters in Buick Rainier, Chevrolet Trailblazer EXT, GMC Envoy XL, and Envoy XUV
  • Restores proper exhaust flow and emissions control
  • Helps resolve check engine light issues related to O2 sensor readings
  • Improves vehicle compliance with emissions regulations
  • Supports engine performance by maintaining correct exhaust backpressure

Installation Notes and Tips

When installing the Davico Exact-Fit Catalytic Converter 19412, ensure all four O2 sensors are properly transferred or replaced to maintain accurate emissions monitoring. Use the included gaskets to achieve a secure seal at all flange connections. The combination of fixed and spin flange inlets allows for easier alignment during installation. It is recommended to use the Davico Decarbonizing Induction Kit 1540ea as part of maintenance to optimize converter performance.

Quality Assurance and Warranty

Davico Exact-Fit Catalytic Converters are manufactured to meet or exceed OEM standards for durability and emissions compliance. This product includes a large package fee due to its size and is shipped unboxed to reduce handling damage. Warranty details should be confirmed with the distributor or manufacturer to ensure coverage specifics.

BrandDavico
Part Number19412
PositionExact-Fit Catalytic Converter, Center
Gaskets IncludedYes
Height12.5
Inlet 1 Type3 bolt fixed flange
Inlet 2 Type3 bolt spin flange
Large Pkg. FeeYes
Number Of O2 Sensors4
Outlet Type2 bolt fixed flange
Over All Length54.5
Packaging TypeUnboxed
Use Davico Decarbonizing Induction Kit 1540eaYes
Width30

This part fits 10 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2004BuickRainier5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2004ChevroletTrailblazer EXTLT5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2004ChevroletTrailblazer EXTLS5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2004ChevroletTrailblazer EXTNorth Face5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2004GMCEnvoy XL5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2004GMCEnvoy XUV5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2003ChevroletTrailblazer EXTLT5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2003ChevroletTrailblazer EXTLS5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2003ChevroletTrailblazer EXTNorth Face5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter
2003GMCEnvoy XL5.3LV8CenterNot legal for use in California; Illegal for installation in NY on vehicles equipped with California emission systems; w/ 129 inch wheelbase; Exact-Fit Catalytic Converter

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.