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Hummer 89018205 Main Seal

2006-2010 Hummer

Customer Questions & Expert Answers (3)
89018205 GM Main Seal Product Photo 1 of 2
  • Part Description
    Seal, Engine Rear Main Bearing
  • Position
    Rear
  • Replaces
    12568124
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Hummer
    Manufacturer Part Number89018205
    Part DescriptionMain Seal; Seal, Engine Rear Main Bearing
    Item Dimensions4.1 x 4.2 x 1.0 inches
    Item Weight0.40 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12568124
    ManufacturerGeneral Motors
    SKU89018205
    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
    2006-2010 Hummer H35 Cyl 3.5L, 5 Cyl 3.7LCREW CAB, SUV
    2009-2010 Hummer H3T5 Cyl 3.7LCREW CAB, SUV
  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle?
    A:
    You can Select Your Vehicle to check if 89018205 fits your vehicle.
    Posted and answered by GM Parts Specialist Raul
    Q:
    How should you prepare the new Crankshaft Seal before installation for the 2006 Chevrolet Colorado? Posted by Mik C.
    A:
    Apply clean engine oil or multi-purpose grease to the outer edge of the new seal, then install it in the cover with the lip facing inward, avoiding lubrication of the sealing part. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Xavier / May 10, 2024
    Q:
    What precautions should be taken regarding the new Crankshaft Seal during installation for the 2008 GMC Canyon? Posted by Vannalyn L.
    A:
    Avoid lubricating the seal or touching the sealing lip, and ensure the seal is installed in the correct orientation with the part number visible. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Sep 24, 2025

Genuine GM Part 89018205, the Right Choice

To ensure reliability, purchase GM part # 89018205 Main Seal. It is sometimes referred to as Hummer 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 Hummer H3, H3T models.

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