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Cadillac 10046123 Exhaust Manifold Assembly

1990 Cadillac Brougham

Customer Questions & Expert Answers (3)
10046123 GM Exhaust Manifold Assembly Illustration 1 of 1
  • Part Description
    Manifold Assembly, Exhaust
  • Replaces
    14043373
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Cadillac
    Manufacturer Part Number10046123
    Part DescriptionManifold Assembly, Exhaust
    Other NamesExhaust Manifold, Manifold
    Item Dimensions18.9 x 9.0 x 3.6 inches
    Item Weight12.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces14043373
    ManufacturerGeneral Motors
    SKU10046123
    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
    1990 Cadillac Brougham8 Cyl 5.7LBROUGHAM 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 10046123 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is a helpful tip for installing the left rear spark plug heat shield near the Exhaust Manifold for the 1990 Pontiac Firebird? Posted by Tarrant I.
    A:
    Consider installing the left rear spark plug heat shield first for better access. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Jan 08, 2023
    Q:
    How should the new Exhaust Manifold be installed for the 1983 Pontiac Firebird? Posted by Kemery J.
    A:
    Place a new exhaust manifold gasket on the cylinder head, position the manifold, and install the mounting bolts finger tight. Then, tighten the bolts gradually in the specified sequence until all are at the correct torque. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Feb 04, 2026

Genuine GM Part 10046123, the Right Choice

To ensure reliability, purchase GM part # 10046123 Exhaust Manifold Assembly. It is sometimes referred to as Cadillac 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 Cadillac Brougham models.

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