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GMC 89018163 Main Seal

1998-2014 GMC

Customer Questions & Expert Answers (3)
89018163 GM Main Seal Illustration 1 of 1
  • Part Description
    Seal Kit, Engine Rear Main Bearing
  • Position
    Rear
  • Replaces
    12555769
  • Manufacturer
    General Motors
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number89018163
    Part DescriptionMain Seal; Seal Kit, Engine Rear Main Bearing
    Item Dimensions5.2 x 5.2 x 1.0 inches
    Item Weight0.50 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12555769
    ManufacturerGeneral Motors
    SKU89018163
    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
    1998-2001 GMC Jimmy6 Cyl 4.3L2 DOOR, 4 DOOR
    1999-2003 GMC Safari6 Cyl 4.3LVAN SAFARI
    1999-2014 GMC Savana6 Cyl 4.3L1 TON CARGO SAVANA, 1 TON COMMERCIAL/RECREATIONAL VEHICLE SAVANA, 1 TON PASSENGER, 1/2 TON CARGO, 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER SAVANA
    1999-2013 GMC Sierra6 Cyl 4.3L1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    1998-2002 GMC Sonoma6 Cyl 4.3L4 DOOR, PICKUP, PICKUP EXTENDED CAB
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle?
    A:
    You can Select Your Vehicle to check if 89018163 fits your vehicle.
    Posted and answered by GM Parts Specialist Raul
    Q:
    What is the next step after removing the old Crankshaft Seal for the 2003 Chevrolet Astro? Posted by Rajendra P.
    A:
    Clean the bore to eliminate old seal material and corrosion. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Oct 29, 2025
    Q:
    How should the new Crankshaft Seal be prepared before installation for the 2002 Chevrolet Astro? Posted by Renea D.
    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 Raul / Sep 29, 2022

Genuine GM Part 89018163, the Right Choice

To ensure reliability, purchase GM part # 89018163 Main Seal. It is sometimes referred to as GMC 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 GMC Savana, Sierra, Sonoma models.

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