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Oldsmobile 12523974 Cover Asm,Crankcase Front End & Ptr

1991-1992 Oldsmobile Custom Cruiser

Customer Questions & Expert Answers (2)
12523974 GM Cover Asm,Crankcase Front End & Ptr 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 Oldsmobile
    Manufacturer Part Number12523974
    Part DescriptionCOVER
    Other NamesFront Cover, Timing Cover
    Item Dimensions13.0 x 9.7 x 2.4 inches
    Item Weight2.00 Pounds
    PositionFront
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12523974
    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
    1991-1992 Oldsmobile Custom Cruiser8 Cyl 5.0L, 8 Cyl 5.7LSTATION WAGON
  • 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 12523974 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What steps should be followed when removing and installing the Timing Cover in V8 engine on Chevrolet Caprice? Posted by Lonnel M.
    A:
    In case the engine has been removed from the vehicle skip the following steps as they do not apply. Firstly, the torsional damper must be unbolted, then follows the water pump. Next, undo the crankcase front cover attaching bolts and pull of the front cover from the engine. Big-block Mark IV engines only, first you take out the attaching bolts and then angle the cover away from the engine while cutting the oil pan gasket to the same length as the block before you can remove the cover. During installation of this piece, one should make sure that the block and crankcase front cover are not contaminated. Cut off any oil pan gasket material with a sharp knife at the interface between the oil pan and the engine block. A thin layer of silicone rubber sealer 1/8 inch thick has to be applied to the joint created by the oil pan and block and to the front part of the oil pan. Apply non-setting sealant on the cover gasket and fit it to the cover and then merely tighten four screws at the top and two ¼ inch-20 x ½ inch screws at the bottom cover holes. Place a light bead of silicone sealer to the bottom of the cover, place the cover on the car and with dowel pins aligned, tighten the screws in a star pattern. Unscrew the two 1/4-inch-20 x 1/2-inch screw and screw the remaining cover screws, then unscrew the rest of the components in the same way as the above procedure. For Mark IV V8, first, clean the block and crankcase front cover, second, if necessary trim the tabs off the new oil pan front seal and, third, install the seal to the front cover, thrusting the tips into the holes. Paint the gasket with non-setting sealer and install it on the cover, and apply a 1/2 inch line of silicone Rubber sealer on the join formed at oil pan and block. Bolt the cover attaching screws into position and torque tighten them to the recommend torque. Apply engine oil on the front cover seal area of the torsional damper, position the damper in place and tighten with a suitable bolt and spacers not to damage the damper during this stage. Lastly, the rest are the accessory drive pulley, and the other parts to be placed in the reverse order.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Feb 18, 2026

Genuine GM Part 12523974, the Right Choice

To ensure reliability, purchase GM part # 12523974 Cover Asm,Crankcase Front End & Ptr. It is sometimes referred to as Oldsmobile 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 Oldsmobile Custom Cruiser models.

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