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GM 15947648 3-Way Catalytic Convertor (With Exhaust Rear Manifold Pipe)

2008-2009 Pontiac G6

Customer Questions & Expert Answers (2)
15947648 GM 3-Way Catalytic Convertor (With Exhaust Rear Manifold Pipe) Illustration 1 of 1
  • Part Description
    Converter Asm 3Way Catalytic (W/ Exhaust Rear Mani ; Converter, Catalytic Converter)
  • Position
    Rear
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number15947648
    Part DescriptionConverter Asm 3Way Catalytic (W/ Exhaust Rear Mani ; Converter, Catalytic Converter)
    Other NamesConverter & Pipe
    Item Dimensions29.2 x 17.9 x 9.6 inches
    Item Weight12.90 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU15947648
    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
    2008-2009 Pontiac G66 Cyl 3.9LGT 2 DOOR CONVERTIBLE
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 15947648 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    Are failures of Catalytic Converters common, and how can plugged converters be diagnosed for the 2009 Pontiac G6? Posted by Hans L.
    A:
    Although failures are rare, plugged converters can be diagnosed using a vacuum gauge to assess intake vacuum. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Feb 24, 2026

Genuine GM Part 15947648, the Right Choice

To ensure reliability, purchase GM part # 15947648 3-Way Catalytic Convertor (With Exhaust Rear Manifold Pipe). It is sometimes referred to as GM Catalytic Converter, GM Exhaust Pipe. 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 Pontiac G6 models.

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