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GMC 19420798 CYLINDER ASM,BRK MAS

2009-2014 GMC

Customer Questions & Expert Answers (8)
GM 19420798 CYLINDER ASM,BRK MAS
  • Part Description
    CYLINDER ASM,BRK MAS
  • Replaced By
    19432757
  • Manufacturer
    General Motors
Make sure this part fits
$129.30 MSRP: $256.56
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number19420798
    Part DescriptionCYLINDER ASM,BRK MAS
    Other NamesMaster Cylinder
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU19420798
    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
    2009-2013 GMC Sierra6 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
    2009-2014 GMC Yukon8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.2L Flex1/2 TON, YUKON XL/DENALI XL/ESCALADE ESV, YUKON/DENALI/ESCALADE
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 19420798 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install a master cylinder on Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL? Posted by Customer
    A:
    To remove the brake master cylinder, first 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. Loosen the fittings at the ends of the brake lines where they enter the brake master cylinder and pull the brake lines away from the brake master cylinder, plugging the ends to prevent contamination. Remove the nuts attaching the brake master cylinder to the power booster and pull the brake master cylinder off the studs. To install the new brake master cylinder, bench bleed it before installing it by mounting it in a vise and attaching a pair of brake master cylinder bleeder tubes to the outlet ports. Fill the reservoir with brake fluid of the recommended type and slowly push the pistons into the brake master cylinder until no more air bubbles are present. Remove the bleed tubes and install plugs in the open ports to prevent fluid leakage and air from entering. Replace the o-ring seal on the end of the brake master cylinder and install it to the booster, leaving the mounting nuts finger tight for now. Thread the brake line fittings into the brake master cylinder and tighten the mounting nuts to the torque specifications. Fill the brake master cylinder reservoir with fluid, then bleed the lines at the brake master cylinder, followed by bleeding the remainder of the brake system. Confirm that the brakes are fully operational before resuming normal driving.
    Posted by GMPartsGiant Specialist
    Q:
    What should you do before installing the new master cylinder of the 2014 Cadillac Escalade? Posted by Customer
    A:
    Replace the O-ring seal on the end of the master cylinder.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done before installing the new master cylinder for the 2008 Chevrolet Suburban? Posted by Customer
    A:
    Bench bleed the new master cylinder before installing it. Mount it in a vise and attach a pair of master cylinder bleeder tubes to the outlet ports. Fill the reservoir with brake fluid and slowly push the pistons into the master cylinder until no more air bubbles are present. Remove the bleed tubes and install plugs in the open ports to prevent fluid leakage and air from entering.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done before installing the new master cylinder for the 2008 Chevrolet Silverado? Posted by Customer
    A:
    Bench bleed the new master cylinder before installing it. Mount it in a vise and attach a pair of master cylinder bleeder tubes to the outlet ports. Fill the reservoir with brake fluid and slowly push the pistons into the master cylinder until no more air bubbles are present. Remove the bleed tubes and install plugs in the open ports to prevent fluid leakage and air from entering.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    How should the master cylinder be removed from the power booster for the 2009 Chevrolet Tahoe? Posted by Customer
    A:
    Remove the nuts attaching the master cylinder to the power booster and pull the master cylinder off the studs.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done after installing the new master cylinder of the 2012 GMC Sierra? Posted by Customer
    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.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Brake Master Cylinder
    Q:
    What should be done before removing the master cylinder for the 2011 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 19420798, the Right Choice

To ensure reliability, purchase GM part # 19420798 CYLINDER ASM,BRK MAS. It is sometimes referred to as GMC 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 GMC Sierra, Yukon models.

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