Menu
×
Search Bar
Search by Part Number, Part Name, or Vehicle
My Garage
Cart
Help Center Contact Us
Make sure this part fits

GM 18047787
Master Cylinder

2000-2003 GM

Customer Questions & Expert Answers (12)
GM 18047787 Master Cylinder
  • Part Description
    Cylinder, Brake Master Cylinder; Brake Master Cylinder
  • Replaces
    18045192, 18040242
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits

  • 18047787 Master Cylinder is Ref No. 4 in the diagram below

    2001 Cadillac DeVille Master Cylinder Diagram for 18047787
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 18047787

  • Vehicle Fitment

    Year Make Model Trim Engine
    2000-2003 Buick LeSabreCustom, Limited6 Cyl 3.8 L GAS
    2000-2003 Cadillac DeVilleBase, DHS, DTS8 Cyl 4.6 L GAS
    2001-2003 Oldsmobile AuroraBase6 Cyl 3.5 L GAS, 8 Cyl 4.0 L GAS
    2000-2003 Pontiac BonnevilleSE, SLE, SSEi6 Cyl 3.8 L GAS
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is this 18047787 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 18047787 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the brake master cylinder on Buick LeSabre? Posted by Customer
    A:
    To replace Brake Master Cylinder; disconnect the electrical connector of Brake Fluid Level Sensor and the brake pipes from master cylinder in line, make sure to cap the exposed brake pipe fitting ends using a rubber cap or plug to avoid losing fluids vales due to spillage. Next, insert the open brake pipe fitting ends, remove 2 master cylinder mounting nuts, and remove the master cylinder. When the reservoir is to be used again, take it out of the master cylinder. For installation, connect the Brake Master Cylinder reservoir to the vacuum Brake Booster if was detached, bench bleed the master cylinder, then connect it to the vacuum Brake Booster and refer to the fastener notice in service precautions. Mount the master cylinder with the 2 mounting nuts with 25 nm (18 ft. Lbs) of torque, then drain the plugs from the brake pipes and attach them to the master cylinder and tighten the fittings to 33 nm (24 ft. Lbs.). Finally, reconnect the Brake Fluid Level Sensor electric connector and bleed the hydraulic brake system.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to service and repair the Brake Master Cylinder on Buick LeSabre? Posted by Customer
    A:
    Insert safe fittings over all the ports first and ensure they will not harm the seal valleys. Securely support the master cylinder at its mounting points to prevent warping while using the hoses to insert new fluid into its reservoir. Use delco supreme ii brake fluid gm p/n 12377967 or dot 3 equivalent parts to avoid damage to rubber components in the hydraulic system since water reduces boiling point and petroleum-based fluids swell them. Place a new supply of delco supreme ii brake fluid gm p/n 12377967 into the reservoir and push the cylinders down to their bottom positions with a smooth rod to prevent damage to internal parts. Depress then release the pistons repeatedly until the port lets fluid flow freely without air bubbles through it.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be used to lubricate the components for the 2001 Buick LeSabre? Posted by Customer
    A:
    Use Delco Supreme 11 (R) (GM P/N 12377967) or equivalent DOT-3 brake fluid from a clean, sealed container.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What tool is used to depress the primary piston for the 2003 Buick LeSabre? Posted by Customer
    A:
    A smooth, round-ended tool.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done after disconnecting the brake pipes for the 2002 Buick LeSabre? Posted by Customer
    A:
    Plug the open brake pipe fitting ends, remove the 2 master cylinder mounting nuts, and take out the master cylinder.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    How should the master cylinder be installed onto the power booster for the 2000 Buick LeSabre? Posted by Customer
    A:
    Install the master cylinder onto the power booster, ensuring to follow the fastener notice for proper torque.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What needs to be installed on the master cylinder ports for the 2002 Cadillac DeVille? Posted by Customer
    A:
    Install suitable fittings for hose attachment.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What if the reservoir is to be reused for the 2003 Cadillac DeVille? Posted by Customer
    A:
    Remove the reservoir from the master cylinder.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done after disconnecting the brake pipes for the 2001 Cadillac DeVille? Posted by Customer
    A:
    Plug the open brake pipe fitting ends, remove the 2 master cylinder mounting nuts, and take out the master cylinder.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What is the torque specification for the attaching nuts for the 2000 Cadillac DeVille? Posted by Customer
    A:
    Tighten them to 30 Nm (22 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What tool is used to depress the primary piston for the 2001 Cadillac DeVille? Posted by Customer
    A:
    A smooth, round-ended tool.
    Posted by ChevyPartsGiant 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!

OEM GM Master Cylinder 18047787 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 18047787 Master Cylinder is available in the market under the name GM Brake Master Cylinder. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 18047787 Master Cylinder fits certain Cadillac DeVille models, as well as Buick LeSabre. Additionally, it is compatible with Pontiac Bonneville and Oldsmobile Aurora models.
The original GM component designated by manufacturer part number 18047787 maintains top performance when functioning as the Cylinder, Brake Master Cylinder; Brake Master Cylinder unit. The component 18047787 is constructed from durable material and its dimensions span 12.0 x 8.1 x 6.4 inches while weighing 2.70 Pounds. The component is ready in New condition to ensure full compatibility with your vehicle system. The part 18047787 has available replacement options 18045192, 18040242. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.