Make sure this part fits

GM 19432748 Brake Master Cylinder

2007-2013 GM

Customer Questions & Expert Answers (3)
19432748 GM Brake Master Cylinder Illustration 1 of 1
  • Part Description
    CYLINDER ASM,BRK MAS
  • Replaces
    19417186, 20845347, 25880114, 15886471, 19432946, 19420799, 84825844
  • Manufacturer
    General Motors
Make sure this part fits
$171.94 MSRP: $307.58
You Save: $135.64 (45%)
Currently Unavailable

Due to manufacturer supply shortage, this item isn't currently available for ordering.

  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number19432748
    Part DescriptionCYLINDER ASM,BRK MAS
    ConditionNew
    Replaces19417186, 20845347, 25880114, 15886471, 19432946, 19420799, 84825844
    ManufacturerGeneral Motors
    SKU19432748
    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
    2007-2013 Chevrolet Silverado6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2007-2009 GMC Sierra6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.2L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
  • 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 19432748 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should be done before removing the Brake Master Cylinder of the 2007 GMC Sierra? Posted by Osciel O.
    A:
    Disconnect the cable from the negative battery terminal and unplug the electrical connector for the fluid level warning switch. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Oct 22, 2025
    Q:
    What should be done after installing the new Brake Master Cylinder for the 2011 Chevrolet Silverado? Posted by Estephania C.
    A:
    Fill the master cylinder reservoir with fluid, then bleed the lines at the master cylinder, followed by bleeding the remainder of the brake system. Confirm that the brakes are fully operational before resuming normal driving. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Apr 08, 2026

Genuine GM Part 19432748, the Right Choice

To ensure reliability, purchase GM part # 19432748 Brake Master Cylinder. 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 Silverado models. It fits GMC Sierra.

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