Make sure this part fits

GM 25527144 Exhaust Manifold

1984-1985 GM

Customer Questions & Expert Answers (3)
25527144 GM Exhaust Manifold Illustration 1 of 1
  • Part Description
    Manifold,Exhaust
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number25527144
    Part DescriptionManifold,Exhaust
    Other NamesManifold
    Item Dimensions18.5 x 8.7 x 4.5 inches
    Item Weight6.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU25527144
    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
    1984-1985 Buick Century6 Cyl 3.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR
    1985 Buick Electra6 Cyl 3.8L2 DOOR, 4 DOOR, COUPE 2 DOOR, SEDAN 4 DOOR, T-TYPE COUPE 2 DOOR, T-TYPE SEDAN 4 DOOR
    1985 Oldsmobile 986 Cyl 3.8LREGENCY 2 DOOR, REGENCY 4 DOOR, REGENCY BROUGH 2 DOOR, REGENCY BROUGH 4 DOOR
    1984-1985 Oldsmobile Cutlass6 Cyl 3.8LBROUGHAM 2 DOOR, BROUGHAM 4 DOOR, LS 2 DOOR, LS 4 DOOR, LS STATION WAGON
  • 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 25527144 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    What should be done after disconnecting the exhaust pipe and other components when removing Exhaust Manifolds for the 1984 Buick Century? Posted by Verified Customer
    A:
    After disconnecting the exhaust pipe and other components, the next step involves bending back any locking tabs on the mounting nuts, soaking them with solvent, and then loosening and removing them. This allows for the removal of the manifold and seal. It's also crucial to ensure that the block's surface is thoroughly cleaned. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Sep 07, 2025
    Q:
    What are the steps for removing the right-hand Exhaust Manifold with a 403 cu in or 455 cu in engine for the 1984 Oldsmobile Cutlass? Posted by Andrea Z.
    A:
    1. Disconnect the negative battery cable. 2. Hoist the car and support it firmly with jack stands. 3. Remove the right front wheel for better access. 4. Disconnect the exhaust pipe where it connects to the manifold, using penetrating oil if necessary. 5. Remove the exhaust manifold bolts. 6. Take the manifold out from under the car. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Xavier / Nov 20, 2022

Genuine GM Part 25527144, the Right Choice

To ensure reliability, purchase GM part # 25527144 Exhaust Manifold. It is sometimes referred to as GM 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 Buick Century, Electra models. It fits Oldsmobile 98, Cutlass.

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