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GM 20854453 Converter Assembly

Customer Questions & Expert Answers (3)
20854453 GM Converter Assembly Product Photo 1 of 3
  • Part Description
    Converter Assembly - 3Way Catalytic With Exhaust Manifold P
  • Replaced By
    19418926
  • Manufacturer
    General Motors
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  • Specifications
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number20854453
    Part DescriptionConverter Assembly; Converter Assembly - 3Way Catalytic With Exhaust Manifold P
    Item Dimensions46.9 x 30.6 x 14.6 inches
    Item Weight37.70 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU20854453
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    What is a Catalytic Converter of the 2011 Chevrolet Tahoe? Posted by Raney O.
    A:
    A catalytic converter is an emission control device that reduces certain pollutants in the exhaust gas stream. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jan 09, 2025
    Q:
    What does a reduction catalyst do for the Catalytic Converter in the 2012 Chevrolet Silverado? Posted by Nooh A.
    A:
    A reduction catalyst reduces oxides of nitrogen. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Oct 27, 2025
    Q:
    Hi. I would like to make sure that this part is suitable for my 2010 Yukon car. Body No. .. I need the exhaust to prevent pollution be in the shape of the letter Y Posted by Laercio P. / 2010 Light Truck Tahoe / Yukon / Escalade - 06 Bodystyle (2WD)
    A:
    20854453 CONVERTER, 3WAY CTLTC (W/EXH MANIF PIPE) FLEX FUEL W/CYL DEACTVN/AFM (LC9),5.3-0 FLEX FUEL W/CYL DEACTIVATION,TIER 2 FED EMIS (NT7),CALIFORNIA LEV2 EMIS CORRECT PER VIN
    Answered by GM Parts Specialist Matt / Jan 08, 2021

Genuine GM Part 20854453, the Right Choice

To ensure reliability, purchase GM part # 20854453 Converter Assembly. It is sometimes referred to as GM Catalytic Converter. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts.

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