Make sure this part fits

Buick 18029966 Brake Master Cylinder Assembly

1995-1996 Buick Roadmaster

Customer Questions & Expert Answers (2)
18029966 GM Brake Master Cylinder Assembly Illustration 1 of 1
  • Part Description
    CYLINDER, Brake Master Cylinder
  • Replaces
    18021270
  • 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 Number18029966
    Part DescriptionCYLINDER, Brake Master Cylinder
    Other NamesMaster Cylinder
    Item Dimensions12.2 x 7.9 x 6.4 inches
    Item Weight3.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces18021270
    ManufacturerGeneral Motors
    SKU18029966
    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
    1995-1996 Buick Roadmaster8 Cyl 5.7L4 DOOR, LIMITED, LIMITED SEDAN, STATION WAGON
  • 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 18029966 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How do you remove the Brake Master Cylinder for the 1996 Cadillac Fleetwood? Posted by Paylee O.
    A:
    To remove the master cylinder, remove the mounting nuts and take out the master cylinder. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Feb 13, 2026

Genuine GM Part 18029966, the Right Choice

To ensure reliability, purchase GM part # 18029966 Brake Master Cylinder Assembly. It is sometimes referred to as Buick Brake Master Cylinder. 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 Roadmaster models.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 18029966 Brake Master Cylinder Assembly. You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed Buick parts information, click here.
Find low prices on genuine OE parts from GM dealerships with fast delivery and dedicated service at GMPartsGiant.com.