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GM 25865166 Cylinder Assembly, Brake Master

2008 GM

Customer Questions & Expert Answers (5)
GM 25865166 Cylinder Assembly, Brake Master
  • Part Description
    CYLINDER, Brake Master Cylinder
  • Replaces
    15795984, 15795983
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number25865166
    Part DescriptionCYLINDER, Brake Master Cylinder
    Other NamesMaster Cylinder
    Item Dimensions14.7 x 8.5 x 7.7 inches
    Item Weight3.80 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces15795984, 15795983
    ManufacturerGeneral Motors
    SKU25865166
    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
    2008 Chevrolet Express8 Cyl 4.8L, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel1 TON CARGO EXPRESS, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS
    2008 Chevrolet Suburban8 Cyl 6.0L3/4 TON
    2008 GMC Savana6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA
    2008 GMC Yukon8 Cyl 6.0L3/4 TON, XL 3/4 TON
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 25865166 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How do you remove the master cylinder for the 1999 Chevrolet Express? Posted by Customer
    A:
    To remove the master cylinder, start by removing as much fluid as possible from the reservoir using a syringe or turkey baster. Place rags under the fluid fittings and prepare caps or plastic bags to cover the ends of the lines once they are disconnected. Loosen the fittings at the ends of the brake lines and plug the ends to prevent contamination. Disconnect the electrical connector at the brake fluid level switch, if equipped, and remove the nuts attaching the master cylinder to the power booster. Carefully pull the master cylinder off the studs and out of the engine compartment.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should you do if you are replacing the reservoir or O-ring of the 2008 GMC Savana? Posted by Customer
    A:
    If replacing the reservoir or O-ring, remove as much fluid as possible, detach the reservoir from the master cylinder, replace the O-rings if necessary, lubricate the new O-rings, and secure the reservoir back onto the master cylinder.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done before removing the master cylinder for the 2009 Chevrolet Suburban? Posted by Customer
    A:
    Disconnect the cable from the negative battery terminal and unplug the electrical connector for the fluid level warning switch. Remove as much fluid as possible from the reservoir and prepare caps or plastic bags to cover the ends of the lines once they're disconnected.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done before removing the master cylinder for the 2013 GMC Yukon? Posted by Customer
    A:
    Disconnect the cable from the negative battery terminal and unplug the electrical connector for the fluid level warning switch. Remove as much fluid as possible from the reservoir and prepare caps or plastic bags to cover the ends of the lines once they're disconnected.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 25865166, the Right Choice

To ensure reliability, purchase GM part # 25865166 Cylinder Assembly, Brake Master. It is sometimes referred to as GM 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 Chevrolet Express, Suburban models. It fits GMC Savana, Yukon.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 25865166 Cylinder Assembly, Brake Master. 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 GMC parts information, click here.

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