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Pontiac 10166303 Plenum Assembly, Inlet Manifold

1989-1990 Pontiac Grand Prix

Customer Questions & Expert Answers (3)
10166303 GM Plenum Assembly, Inlet Manifold Illustration 1 of 1
  • Part Description
    PLENUM, Engine Fuel Intake 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 Pontiac
    Manufacturer Part Number10166303
    Part DescriptionPLENUM, Engine Fuel Intake Manifold
    Item Dimensions17.4 x 15.8 x 4.7 inches
    Item Weight7.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU10166303
    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
    1989-1990 Pontiac Grand Prix6 Cyl 3.1L2 DOOR, 4 DOOR, LE 2 DOOR, SE 2 DOOR, STE 4 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 10166303 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What preparations are needed before removing the Intake Manifold for the 1990 Pontiac Grand Prix? Posted by Denys M.
    A:
    Label and disconnect any wires and vacuum hoses that may interfere with the manifold removal, followed by removing the throttle and TV cables along with their brackets. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Apr 14, 2026
    Q:
    What preparations are needed for the Intake Manifold of the 1989 Pontiac Grand Prix? Posted by Cedric G.
    A:
    Raise the front of the vehicle and support it securely on jackstands, then drain the coolant. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Syed / Apr 22, 2024

Genuine GM Part 10166303, the Right Choice

To ensure reliability, purchase GM part # 10166303 Plenum Assembly, Inlet Manifold. It is sometimes referred to as Pontiac Intake 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 Pontiac Grand Prix models.

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