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GM 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P

2009-2014 GM

Customer Questions & Expert Answers (6)
GM 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
GM 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
GM 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
GM 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
GM 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
  • Part Description
    Converter Assembly, 3Way Catalytic (W/ Exhaust Manifold P
  • Replaced By
    19418926
  • Manufacturer
    General Motors
Make sure this part fits
$1724.85 MSRP: $2690.39
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers

  • Related Parts

    Shop for related parts for your vehicle

  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number20854453
    Part DescriptionConverter Assembly, 3Way Catalytic (W/ Exhaust Manifold P
    Other NamesCatalytic Converter, Converter & Pipe
    Item Dimensions51.2 x 29.9 x 14.2 inches
    Item Weight35.50 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

  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2010-2013 Cadillac Escalade8 Cyl 6.0L FlexYUKON/DENALI/ESCALADE
    2009-2013 Chevrolet Avalanche8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L1/2 TON
    2009-2013 Chevrolet Silverado6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2009-2014 Chevrolet Suburban8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L1/2 TON
    2009-2014 Chevrolet Tahoe8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L Flex4 DOOR 1/2 TON
    2009-2013 GMC Sierra6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2009-2014 GMC Yukon8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex1/2 TON, YUKON XL/DENALI XL/ESCALADE ESV, YUKON/DENALI/ESCALADE

  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 20854453 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    What is a catalytic converter and how do you diagnose and repair it? Posted by Customer
    A:
    A catalytic converter is an emission control device that reduces certain pollutants. There are two types of converters: an oxidation catalyst that reduces hydrocarbons and carbon monoxide, and a reduction catalyst that reduces oxides of nitrogen. Vehicles are equipped with two three-way catalysts that can reduce all three pollutants. Whenever you raise the vehicle to service underbody components, inspect the converter for leaks, corrosion, dents, and other damage. The easiest way to check for a restricted converter is to use a vacuum gauge to diagnose the effect of a blocked exhaust on the intake vacuum. To remove the converter, raise the vehicle and place it securely on jack stands, disconnect the electrical connectors for the upstream and downstream oxygen sensors, remove all four sensors, remove the nuts at each of the upper flanges that secure the front exhaust pipe assembly to the exhaust manifold flanges, remove the nuts that secure the rear flange of the front exhaust pipe assembly to the rest of the exhaust system, and remove the front exhaust pipe assembly. To install the converter, coat the threads of the nuts and bolts with an anti-seize compound to facilitate future removal and tighten the nuts that secure the front exhaust pipe assembly to the exhaust manifold and to the rest of the exhaust system securely.
    Posted by GMPartsGiant Specialist
    Q:
    What is a catalytic converter of the 2011 Chevrolet Tahoe? Posted by Customer
    A:
    A catalytic converter is an emission control device that reduces certain pollutants in the exhaust gas stream.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Catalytic Converter
    Q:
    What should you inspect when raising the 2007 Chevrolet Silverado to service underbody components? Posted by Customer
    A:
    When raising the vehicle, inspect the converter for leaks, corrosion, dents, and other damage.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Catalytic Converter
    Q:
    How can you remove the converter for the 2008 GMC Sierra? Posted by Customer
    A:
    To remove the converter, raise the vehicle and place it securely on jackstands, disconnect the electrical connectors for the oxygen sensors, remove all four sensors, remove the nuts at each of the upper flanges securing the front exhaust pipe assembly, remove the nuts securing the rear flange of the front exhaust pipe assembly, and remove the front exhaust pipe assembly.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Catalytic Converter
    Q:
    Hi. I would like to make sure that this part is suitable for my 2010 Yukon car. Body No. 1GKUCBE01AR229639 .. I need the exhaust to prevent pollution be in the shape of the letter Y Posted by Customer: 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
    Posted by GMPartsGiant Specialist 8/1/2021
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 20854453, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P. It is sometimes referred to as GM Catalytic Converter. Our GM parts and accessories are expedited directly from authorized GM dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty. OEM GM parts are the best for restoring your vehicle to factory condition performance. This part fits specific Cadillac Escalade models. It fits Chevrolet Avalanche, Silverado, Tahoe. It also fits GMC Sierra, Yukon.

Affordable, reliable and built to last, GM part # 20854453 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P stands out as the smart option. GMPartsGiant.com is your prime online source with the biggest and best selection of genuine GM parts and accessories at giant discounted prices. We have the OEM GM parts and accessories you need at the wholesale prices. GMPartsGiant.com has you covered no matter what type of GM vehicle you drive. For detailed GMC parts information, click here.

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