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Buick 20859303 Rear Shock Absorber Assembly

2010 Buick

Customer Questions & Expert Answers (3)
20859303 GM Rear Shock Absorber Assembly Illustration 1 of 1
  • Part Description
    Absorber Assembly, Rear Shock ; Absorber, Front And Rear Suspension
  • Position
    Rear
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number20859303
    Part DescriptionAbsorber Assembly, Rear Shock ; Absorber, Front And Rear Suspension
    Other NamesShock, Strut
    Item Dimensions4.2 x 3.1 x 26.3 inches
    Item Weight11.20 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    Require Quantity2
    ManufacturerGeneral Motors
    SKU20859303
    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
    2010 Buick Allure4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, SPS 4 DOOR SEDAN
    2010 Buick LaCrosse4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, SPS 4 DOOR SEDAN
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 20859303 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    How do you remove the Shock Absorber of the 2010 Buick LaCrosse? Posted by Lyn N.
    A:
    Start by blocking the front wheels and loosening the lug nuts on the rear wheels. Then, raise the rear of the vehicle and support it securely on jackstands before removing the wheels. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Aug 06, 2025
    Q:
    What is the first step in removing the front strut of the 2010 Buick LaCrosse? Posted by Bud T.
    A:
    Start by loosening the lug nuts on the front wheels and raising the vehicle with jackstands. Remove the wheels afterward. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Sep 21, 2024

Genuine GM Part 20859303, the Right Choice

To ensure reliability, purchase GM part # 20859303 Rear Shock Absorber Assembly. It is sometimes referred to as Buick Shock Absorber. 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 Allure, LaCrosse models.

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