Make sure this part fits

GMC 25163564 Catalytic Convertor, 3Way

1997-1998 GMC Sonoma

Customer Questions & Expert Answers (4)
25163564 GM Catalytic Convertor, 3Way Illustration 1 of 1
  • Part Description
    Catalytic Converter, 3Way ; Converter, Catalytic Converter
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number25163564
    Part DescriptionCatalytic Converter, 3Way ; Converter, Catalytic Converter
    Other NamesCatalytic Converter, Converter
    Item Dimensions4.2 x 4.0 x 29.3 inches
    Item Weight14.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU25163564
    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
    1997-1998 GMC Sonoma4 Cyl 2.2LPICKUP
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 25163564 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    What is the purpose of a Catalytic Converter for the 1998 GMC Sonoma? Posted by Gouvaze C.
    A:
    The purpose of a catalytic converter is to reduce pollutants from the exhaust gas stream. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Nov 28, 2024
    Q:
    What is the purpose of a Catalytic Converter for the 1998 Chevrolet S10? Posted by Bethney H.
    A:
    The purpose of a catalytic converter is to reduce pollutants from the exhaust gas stream. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Sep 27, 2025
    Q:
    I'm sure the image is a generic picture but it does have the extension pipe with a three-bolt flange on the part correct? I m wanting to purchase a direct bolt-on like a factory installation. I do not want to purchase one that needs to be welded on. Please advise Posted by Rodney G. / 1997 Light Truck S10 / Sonoma Pickup (2WD)
    A:
    25163564 CONVERTER, 3WAY CTL, (EXC LEADED FUEL COMPATIBLE YES
    Answered by GM Parts Specialist Ed / May 21, 2021

Genuine GM Part 25163564, the Right Choice

To ensure reliability, purchase GM part # 25163564 Catalytic Convertor, 3Way. It is sometimes referred to as GMC 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. This part fits specific GMC Sonoma models.

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