Make sure this part fits

Buick 18015939 Power Brake Booster ASSEMBLY (2005)

1986 Buick Century

Customer Questions & Expert Answers (3)
18015939 GM Power Brake Booster ASSEMBLY (2005) Illustration 1 of 1
  • Part Description
    Booster Assembly, Power Brake(2005)
  • 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 Number18015939
    Part DescriptionBooster Assembly, Power Brake(2005)
    Other NamesBrake Booster
    Item Dimensions10.4 x 15.7 x 10.3 inches
    Item Weight11.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU18015939
    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
    1986 Buick Century4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR
  • 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 18015939 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How do you disconnect the Brake Booster push rod from the brake pedal arm for the 1986 Buick Century? Posted by Jayson B.
    A:
    Remove the retaining clip, and slide the eyelet end of the push rod off of the pin on the brake arm. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jan 12, 2025
    Q:
    What needs to be disconnected from the power Brake Booster for the 1986 Oldsmobile Cutlass? Posted by Wale T.
    A:
    Disconnect the vacuum hose leading to the front of the power brake booster and cover the end of the hose. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Oct 02, 2025

Genuine GM Part 18015939, the Right Choice

To ensure reliability, purchase GM part # 18015939 Power Brake Booster ASSEMBLY (2005). It is sometimes referred to as Buick Brake Booster. 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 Century models.

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