Make sure this part fits

GM 12521221 Cover Assembly, Crankcase Front End

1987-1991 GM

Customer Questions & Expert Answers (3)
12521221 GM Cover Assembly, Crankcase Front End Illustration 1 of 1
  • Part Description
    COVER
  • Position
    Front
  • 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 Number12521221
    Part DescriptionCOVER
    Other NamesTiming Cover
    Item Dimensions17.9 x 17.9 x 5.4 inches
    Item Weight7.60 Pounds
    PositionFront
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12521221
    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
    1987-1989 Buick Century6 Cyl 2.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR
    1988-1991 Buick Regal6 Cyl 2.8L, 6 Cyl 3.1L2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, REGAL
    1987-1988 Cadillac Cimarron6 Cyl 2.8LCIMARRON
    1987-1991 Chevrolet Beretta6 Cyl 2.8L, 6 Cyl 3.1L2 DOOR, 4 DOOR, 4 DOOR NOTCHBACK, 4 DOOR PLAIN BACK HATCHBACK, LTZ
    1987-1991 Chevrolet Cavalier6 Cyl 2.8L, 6 Cyl 3.1L2 DOOR, 2 DOOR NOTCHBACK, 4 DOOR, CS 2 DOOR HATCHBACK, CS 4 DOOR, CS STATION WAGON, RS 2 DOOR, RS 2 DOOR HATCHBACK, RS 2 DOOR NOTCHBACK, RS 4 DOOR, RS CONVERTIBLE, RS STATION WAGON, STATION WAGON, Z24 2 DOOR, Z24 2 DOOR HATCHBACK, Z24 2 DOOR NOTCHBACK, Z24 CONVERTIBLE
    1987-1990 Chevrolet Celebrity6 Cyl 2.8L, 6 Cyl 3.1L2 DOOR, 4 DOOR, STATION WAGON
    1987-1991 Chevrolet Corsica6 Cyl 2.8L, 6 Cyl 3.1L2 DOOR, 4 DOOR, 4 DOOR NOTCHBACK, 4 DOOR PLAIN BACK HATCHBACK, LTZ
    1990 Chevrolet Lumina6 Cyl 3.1L2 DOOR, 4 DOOR
    1987-1991 Oldsmobile Cutlass6 Cyl 2.8L, 6 Cyl 3.1L2 DOOR, 4 DOOR, BROUGHAM 4 DOOR, BROUGHAM SL 2 DOOR, BROUGHAM STATION WAGON, SL 2 DOOR, SL 4 DOOR, SL STATION WAGON, STATION WAGON
    1987 Oldsmobile Firenza6 Cyl 2.8L2 DOOR NOTCHBACK, 2 DOOR PLAIN BACK HATCHBACK, 4 DOOR, BROUGHAM 2 DOOR NOTCHBACK, BROUGHAM 2 DOOR PLAIN BACK, BROUGHAM 4 DOOR, STATION WAGON
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  • 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 12521221 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What additional components should be disconnected or unbolted for the Timing Cover on the 1990 Chevrolet Beretta? Posted by Verified Customer
    A:
    You should also disconnect the coolant hoses from the fill pipe and water pump, unbolt the spark plug wire shield at the water pump, and disconnect the canister purge hose and tie it aside. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Mar 06, 2025
    Q:
    How should the old gasket material be removed from the sealing surfaces of the Timing Cover for the 1989 Chevrolet Beretta? Posted by Verified Customer
    A:
    The old gasket material should be removed using a scraper and degreaser. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / May 03, 2025

Genuine GM Part 12521221, the Right Choice

To ensure reliability, purchase GM part # 12521221 Cover Assembly, Crankcase Front End. It is sometimes referred to as GM Timing Cover. 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, Regal models. It fits Cadillac Cimarron. It also fits Chevrolet Cavalier, Celebrity, Corsica. This also fits Pontiac 6000, Grand Prix, Sunbird.

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