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Make sure this part fits

GM 12587377
Master Cylinder

2004-2007 Cadillac CTS

Customer Questions & Expert Answers (5)
GM 12587377 Master Cylinder
GM 12587377 Master Cylinder
GM 12587377 Master Cylinder
GM 12587377 Master Cylinder
GM 12587377 Master Cylinder
  • Part Description
    Cylinder Assembly-Clutch Master; Clutch Master Cylinder
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers

  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12587377
    Part DescriptionCylinder Assembly-Clutch Master; Clutch Master Cylinder
    Other NamesCylinder, Hydraulic Clutch Main Cylinder
    Item Dimensions10.2 x 8.5 x 8.5 inches
    Item Weight1.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12587377
    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 Trim Engine
    2004-2007 Cadillac CTSV8 Cyl 5.7 L GAS, 8 Cyl 6.0 L GAS

  • Customer Questions & Expert Answers

    Q:
    Is this 12587377 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12587377 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Clutch Master Cylinder on Cadillac CTS? Posted by Customer
    A:
    In order to change the Clutch Master Cylinder (CTS), start by removing the driver side instrument panel insulator and disconnecting the clutch pedal position switch electrical connector. Then, remove the Clutch Master Cylinder push rod from the clutch pedal pin and remove the clutch fluid reservoir retaining bolt and remove it itself from the fender reinforcement. It is important to note that draining of the coolant or removal of the coolant lines from the surge tank is not important; rather, loosen the coolant surge tank mounting bolts and place the tank where it is out of your way. The rubber cap must be fitted onto the exposed hose fit critical before you disconnect the clutch hydraulic hose to avoid fluid loss and contamination. Ratate the Clutch Master Cylinder clockwise 1/8 turn and get it off the cowl or remove it from there then get the clutch pedal position switch off the master cylinder. For installation, mount the clutch pedal position switch in the new Clutch Master Cylinder while making sure that the clutch fluid reservoir outlet is at the 2:00 position when you insert the master cylinder into the cowl. Move the keys of the master cylinder housing towards the tabs of the clutch pedal bracket and twist it to the counterclockwise direction by about 1/8 turn until the housing is completely seated, with the reservoir hose connection in the vertical 12:00 orientation. Connect the clutch hydraulic hose, and reinstall the coolant surge tank, then connect the clutch fluid reservoir to the fender reinforcement and tighten the reservoir bolt to 36 nm (27 ft. Lbs.). Set the Clutch Master Cylinder push rod to the side of the pedal pin and force the push rod onto the pedal pin. Reconnect the electrical connector of the clutch pedal position switch, reinstall the driver side instrument panel insulator, bleed of the clutch hydraulic system.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be done after the master cylinder is seated for the 2007 Cadillac CTS? Posted by Customer
    A:
    Connect the clutch hydraulic hose, install the coolant surge tank, and then attach the clutch fluid reservoir to the fender reinforcement.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Clutch Master Cylinder
    Q:
    How can fluid loss and contamination be prevented before disconnecting the clutch hydraulic hose for the 2005 Cadillac CTS? Posted by Customer
    A:
    Install a rubber cap over the exposed hose fitting before disconnecting the clutch hydraulic hose.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Clutch Master Cylinder
    Q:
    How can fluid loss and contamination be prevented before disconnecting the clutch hydraulic hose for the 2006 Cadillac CTS? Posted by Customer
    A:
    Install a rubber cap over the exposed hose fitting before disconnecting the clutch hydraulic hose.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Clutch 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 12587377, Excellent Performance and Perfect Fitment

To ensure reliability, purchase GM part # 12587377 Master Cylinder. It is sometimes referred to as GM Clutch Master Cylinder. Choosing OEM parts is the optimal decision for guaranteeing superior quality and perfect performance. These components undergo stringent quality checks and are carefully constructed to comply with GM's factory specifications, ensuring a smooth installation process.

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