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Oldsmobile 12554314 Main Seal

1996-1998 Oldsmobile Bravada

Customer Questions & Expert Answers (3)
12554314 GM Main Seal Product Photo 1 of 2
  • Part Description
    Seal, Engine Rear Main Bearing
  • Position
    Rear
  • Manufacturer
    General Motors
Make sure this part fits
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Oldsmobile
    Manufacturer Part Number12554314
    Part DescriptionMain Seal; Seal, Engine Rear Main Bearing
    Item Dimensions5.3 x 5.3 x 1.5 inches
    Item Weight0.50 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12554314
    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
    1996-1998 Oldsmobile Bravada6 Cyl 4.3LBRAVADA
  • 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 12554314 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How should the old Crankshaft Seal be removed from the rear cover for the 2002 Chevrolet Express? Posted by Tasha H.
    A:
    Carefully pry the oil seal from the rear cover using a screwdriver, ensuring not to nick or scratch the crankshaft or the seal bore. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Mar 07, 2026
    Q:
    How should the new Crankshaft Seal be prepared before installation for the 1997 Chevrolet Astro? Posted by Verified Customer
    A:
    Apply a light coat of engine oil or multi-purpose grease to the outer edge of the new seal and lubricate the seal lip with moly-base grease. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Apr 05, 2025

Genuine GM Part 12554314, the Right Choice

To ensure reliability, purchase GM part # 12554314 Main Seal. It is sometimes referred to as Oldsmobile Crankshaft Seal. 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 Bravada models.

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