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Pontiac 12390948 Intermediate Pipe Assembly

1984-1987 Pontiac

Customer Questions & Expert Answers (2)
12390948 GM Intermediate Pipe Assembly
  • Part Description
    Pipe Asm,Intermediate ; Pipe, Exhaust Pipe
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Pontiac
    Manufacturer Part Number12390948
    Part DescriptionPipe Asm,Intermediate ; Pipe, Exhaust Pipe
    Other NamesIntermed Pipe, Pipe
    Item Dimensions83.9 x 15.2 x 12.0 inches
    Item Weight11.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12390948
    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
    1984-1986 Pontiac Bonneville6 Cyl 3.8L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR
    1984-1987 Pontiac Grand Prix6 Cyl 3.8L2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR
  • 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 12390948 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    Why is it crucial to ensure the springs are installed and in good mechanical condition when installing the new Exhaust Pipe for the 1985 Buick Regal? Posted by Rufat J.
    A:
    It is crucial to ensure the springs are installed and in good mechanical condition, meaning no broken coils, to ensure proper functioning of the new pipe. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jul 23, 2025

Genuine GM Part 12390948, the Right Choice

To ensure reliability, purchase GM part # 12390948 Intermediate Pipe Assembly. It is sometimes referred to as Pontiac 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 Bonneville, Grand Prix models.

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