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Chevrolet 24503918 Engine Exhaust Manifold Assembly(R) 'W'

1998-2003 Chevrolet

Customer Questions & Expert Answers (3)
24503918 GM Engine Exhaust Manifold Assembly(R) 'W' Illustration 1 of 1
  • Part Description
    Manifold Assembly, Exhaust(R) 'W' ; Manifold, Engine Exhaust Manifold
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number24503918
    Part DescriptionManifold Assembly, Exhaust(R) 'W' ; Manifold, Engine Exhaust Manifold
    Other NamesExhaust Manifold, Manifold
    Item Dimensions16.5 x 8.5 x 4.8 inches
    Item Weight7.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU24503918
    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
    2000-2003 Chevrolet Impala6 Cyl 3.8LIMPALA, LS, LUMINA, SS
    1998-1999 Chevrolet Lumina6 Cyl 3.8LLS, LTZ, LUMINA, Z34
    1998-2003 Chevrolet Monte Carlo6 Cyl 3.8LIMPALA, LS, LTZ, LUMINA, SS, Z34
  • 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 24503918 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    If a new Exhaust Manifold is being installed, what should be done with the oxygen sensor for the 1998 Pontiac Grand Prix? Posted by Goldschmidt N.
    A:
    If a new manifold is being installed, transfer the oxygen sensor from the old manifold to the new one. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Nov 14, 2025
    Q:
    How should the remaining steps be completed for the Exhaust Manifold on the 1998 Pontiac Grand Prix? Posted by Peek L.
    A:
    Complete the remaining steps in reverse order of removal. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Dec 25, 2023

Genuine GM Part 24503918, the Right Choice

To ensure reliability, purchase GM part # 24503918 Engine Exhaust Manifold Assembly(R) 'W'. It is sometimes referred to as Chevrolet Exhaust Manifold. 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 Chevrolet Impala, Lumina, Monte Carlo models.

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