Genuine GMC Sierra Brake Booster

Brake Power Booster
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22 Brake Boosters found

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    GMC Sierra Power Brake Booster Assembly

    Part Number: 19371362
    $355.77 MSRP: $693.50
    You Save: $337.73 (49%)
    Ships in 1-2 Business Days
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    Product Specifications
    • Other Name: Booster Asm,P/B; Booster Assembly, Brake Booster
    • Replaces: 15854061, 20940395, 20759772, 20940393, 25802513
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2007-2010 GMC Sierra | CREW CAB 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19371356
    $522.34 MSRP: $945.41
    You Save: $423.07 (45%)
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    Product Specifications
    • Other Name: Booster Assembly, Brake Booster
    • Replaces: 15212480, 15218247, 15854059, 15183760, 15126867, 15814411
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2003-2007 GMC Sierra | 1500 CREW CAB LONG BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB | 6 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 6.6L Diesel, 8 Cyl 8.1L
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    GMC Sierra Power Brake Booster Assembly

    Part Number: 84472897
    $565.49 MSRP: $1023.52
    You Save: $458.03 (45%)
    ADD TO CART
    Product Specifications
    • Other Name: Booster Assembly, P/B; Booster Assembly, Brake Booster
    • Replaces: 22872386, 84031701
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2015-2019 GMC Sierra | 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 2500 LONG BOX, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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    GMC Sierra Power Brake Booster Assembly

    Part Number: 19371361
    $449.12 MSRP: $812.88
    You Save: $363.76 (45%)
    Ships in 1-3 Business Days
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    Product Specifications
    • Other Name: Booster Asm,P/B; Booster Assembly, Brake Booster
    • Replaces: 20940394
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2011 GMC Sierra | 1 TON CREW CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
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    GMC Sierra Power Brake Booster Assembly

    Part Number: 19371354
    $908.50 MSRP: $1644.37
    You Save: $735.87 (45%)
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    Product Specifications
    • Other Name: Booster Asm,P/B; Booster Assembly
    • Replaces: 15190585, 15706056, 15861643, 15126289, 15757280, 15813688, 15212823
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 1999-2002 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
  • GMC Sierra Brake Booster - 86788482
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    GMC Sierra Brake Master Cylinder

    Part Number: 86788482
    $982.97 MSRP: $1680.82
    You Save: $697.85 (42%)
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    Product Specifications
    • Other Name: CYLINDER ASM-BRK MAS(W/P/B BOOS&ELEK BRK), Master Cylinder, Master Cylinder Assembly; Brake Master Cylinder with Power Brake Booster and Brake Booster Control Module
    • Replaced by: 85077522
    • Replaces: 84514095, 84514094, 84933511, 84821586, 85124356, 84702004, 84821585, 84933510, 84702005
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2019-2022 GMC Sierra | CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" 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 | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel, 8 Cyl5.3L
  • GMC Sierra Brake Booster - 84602473
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    GMC Sierra Booster Assembly, P/B

    Part Number: 84602473
    $105.71 MSRP: $207.87
    You Save: $102.16 (50%)
    Ships in 1-2 Business Days
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    Product Specifications
    • Other Name: Booster, Booster Assembly, Brake Booster
    • Replaces: 23135220
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2014-2019 GMC Sierra | 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON | 6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 6.2L
  • GMC Sierra Brake Booster - 87815018
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    GMC Sierra CYLINDER ASM-BRK MAS(W/P/B BOOS&ELEK BRK)

    Part Number: 87815018
    $843.78 MSRP: $1442.81
    You Save: $599.03 (42%)
    Ships in 1-2 Business Days
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    Product Specifications
    • Other Name: Master Cylinder, Master Cylinder Assembly
    • Replaced by: 85697531
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2022-2023 GMC Sierra | CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel
  • GMC Sierra Brake Booster - 19432805
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19432805
    $633.70 MSRP: $1217.03
    You Save: $583.33 (48%)
    Ships in 1-2 Business Days
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    Product Specifications
    • Other Name: Booster Assembly, Brake Booster, Master Cylinder
    • Replaces: 84164392, 22745515, 19417216, 22881356
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2012-2013 GMC Sierra | CREW 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 | 6 Cyl 4.3L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L Flex, 8 Cyl 6.2L Flex
  • GMC Sierra Brake Booster - 84609220
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    GMC Sierra Power Brake Booster Assembly

    Part Number: 84609220
    $251.95 MSRP: $491.15
    You Save: $239.20 (49%)
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    Product Specifications
    • Other Name: Booster Assembly, P/B; Booster Assembly, Brake Booster
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2020-2024 GMC Sierra | CREW CAB 1 TON CHASSIS 137.0, CREW CAB 6'6" BOX 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 1 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CREW CAB 1 TON CHASSIS 161.5, REGULAR CAB 1 TON CHASSIS 137.0, REGULAR CAB 1 TON CHASSIS 161.5, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 3/4 TON | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel
  • GMC Sierra Brake Booster - 19432803
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19432803
    $344.22 MSRP: $671.00
    You Save: $326.78 (49%)
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    Product Specifications
    • Other Name: Booster Assembly, Brake Booster
    • Replaces: 20877277, 84164393, 19417211, 20896308
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2010-2011 GMC Sierra | CREW 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 | 6 Cyl 4.3L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L Flex, 8 Cyl 6.2L Flex
  • GMC Sierra Brake Booster - 19432804
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19432804
    $419.22 MSRP: $817.20
    You Save: $397.98 (49%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Booster Assembly, Brake Booster
    • Replaces: 19417213, 84164390, 15886470
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2007-2009 GMC Sierra | CREW 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 | 6 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 Flex
  • GMC Sierra Brake Booster - 19432806
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19432806
    $464.88 MSRP: $906.20
    You Save: $441.32 (49%)
    Ships in 1-2 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Booster Assembly, Brake Booster
    • Replaces: 19417219, 25827889, 84177387
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2009 GMC Sierra | CREW 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 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L Flex
  • GMC Sierra Brake Booster - 85051992
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    GMC Sierra CYLINDER ASM-BRK MAS(W/P/B BOOS&ELEK BRK)

    Part Number: 85051992
    $843.78 MSRP: $1442.81
    You Save: $599.03 (42%)
    Ships in 1-2 Business Days
    ADD TO CART
    Product Specifications
    • Replaced by: 85697531
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2024 GMC Sierra | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel
  • GMC Sierra Brake Booster - 86540120
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    GMC Sierra CYLINDER ASM-BRK MAS(W/P/B BOOS&ELEK BRK)

    Part Number: 86540120
    $843.78 MSRP: $1442.81
    You Save: $599.03 (42%)
    Ships in 1-2 Business Days
    ADD TO CART
    Product Specifications
    • Replaced by: 85697531
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2024 GMC Sierra | CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L, 6 Cyl 3.0L Diesel, 6 CYL 3.0L Diesel, 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl 6.6L Diesel
  • GMC Sierra Brake Booster - 19432809
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19432809
    $174.67 MSRP: $314.72
    You Save: $140.05 (45%)
    Product Specifications
    • Replaces: 10367085, 15804966, 19209324, 19418518, 84177388, 15840835, 15250764
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2005-2007 GMC Sierra | 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
  • GMC Sierra Brake Booster - 19371365
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    GMC Sierra Power Brake Booster Assembly

    Part Number: 19371365
    $375.74 MSRP: $677.00
    You Save: $301.26 (45%)
    Product Specifications
    • Other Name: Booster Asm,P/B; Booster Assembly, Brake Booster
    • Replaces: 22745516
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2012-2014 GMC Sierra | 1 TON CREW CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5 | 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.6L Diesel
  • GMC Sierra Brake Booster - 19432808
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    GMC Sierra BOOSTER ASM,P/B

    Part Number: 19432808
    $311.58 MSRP: $561.39
    You Save: $249.81 (45%)
    Product Specifications
    • Other Name: Booster Assembly, Brake Booster
    • Replaces: 15276502, 19417224, 84164389, 15947019, 15856781
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2007-2008 GMC Sierra | CREW 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 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
  • GMC Sierra Brake Booster - 25801713
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    Product Specifications
    • Other Name: Booster Asm,Power Brake (Vacuum) (Service) ; Booster, Vacuum Power Brake; Booster Assembly, Brake Booster
    • Replaces: 15830660
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2007 GMC Sierra | CREW 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 | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
  • GMC Sierra Brake Booster - 88967101
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    Product Specifications
    • Other Name: Booster Asm,Power Brake ; Booster, Hydraulic Power Brake Booster; Booster Assembly, Brake Booster
    • Replaces: 18047186, 89040683
    • Warranty: This genuine part is guaranteed by GM's factory warranty.
    Fits the following Vehicles:
    • 2003-2007 GMC Sierra | 1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX | 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
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1-20 of 22 Results

GMC Sierra Brake Booster

The GMC Sierra Brake Booster allows drivers to bring their trucks to a halt by requiring much less pedal muscle. It multiplies foot force into increased hydraulic pressure at the master cylinder. A Brake Booster is located between the pedal and master cylinder, with a diaphragm and power piston contained within a two-piece case that is fed from engine vacuum or, in some versions, by pressurized steering fluid. The majority of the GMC Sierra lineup is based on the vacuum Brake Booster style. When the pedal is depressed, the actuator opens an internal valve, allowing atmospheric air into the rear chamber and allowing the manifold vacuum in the front chamber to pull the piston forward, pushing fluid towards the calipers. When the pedal is released, vacuum returns to both chambers so that the system is quickly reset. Certain heavy-duty trims have applied the hydraulic Brake Booster that takes pump pressure from the steering circuit or electric pump to provide constant boost even when the engine vacuum is low during towing or at high altitude. Both designs of Brake Booster have the same purpose but differ primarily in the power source, ensuring that GMC braking is confident for every driver of the Sierra.

Each OEM GMC Sierra Brake Booster we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

GMC Sierra Brake Booster Parts Questions & Experts Answers

  • Q: How to check, remove, and install a vacuum or hydraulic brake booster on GMC Sierra?
    A:
    To check the operating and airtightness of a vacuum booster, depress the pedal and start the engine. Ensure that the pedal goes down slightly and that there is no change in the pedal reserve distance. For a hydraulic booster, turn off the engine and depress the brake pedal to deplete the pressure in the accumulator. If the booster is working properly, the brake pedal will sink toward the floor and then rise back up against your foot. To remove the booster, disconnect the cable from the negative battery terminal, detach the vacuum or pressure and return lines, remove the master cylinder, disconnect any electrical connectors, and remove the pushrod retaining clip and the four nuts retaining the booster. To install the booster, use a new gasket and tighten the mounting nuts to the torque specifications. If working with a hydraulic booster, bleed the power steering system and check the fluid level.

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