How to replace the brake booster vacuum hose rear pipe on 3.0L and 3.6L engines on Buick LaCrosse?

You need to step on the Brake Pedal multiple times to empty the power vacuum Brake Booster reserve before replacing the vacuum rear pipe on 3.0l and 3.6l engines. Turn off power Brake Booster vacuum pipe and disconnect both its sensor connector and rear vacuum line retainer on the dash panel. Separate the vacuum sensor and check valve from the power Brake Booster while you take out the rear pipe from its retainers on the right front brake line and on the dash panel. To access the wheelhouse area place support under the vehicle and take off the front liner from the right front wheel. Disconnect the quick connect at the power Brake Booster pump bracket first and then take off the rear pipe from the vehicle. Positon the rear pipe then secure it to the power Brake Booster pump bracket and install its retaining clip. Connect the quick connector and return the right front wheelhouse front liner to place. Mount the rear pipe at its retainers on both the right front brake pipe and at retaining items 3 and 4 on the dash panel. Connect the vacuum sensor with check valve to the power Brake Booster, plug in the power brake vacuum sensor electronics, then put the power brake vacuum hose in place.

How to check and replace the Brake Booster Vacuum Hose and check valve on Buick Enclave?

Before starting the process turn off the ignition and press the Brake Pedal several times until it becomes firm to drain the Brake Booster vacuum demand. Take out the windshield washer solvent heater part and disconnect the power vacuum Brake Booster check valve together with its attached hose from the Brake Booster. Begin by taking off the fuel injector sight shield and unfastening the vacuum hose routing clip off the intake manifold ball stud. Also disconnect the power vacuum Brake Booster hose from its location on the intake manifold vacuum port. Unplug the quick connect attachment from the power Brake Booster auxiliary supply pump and take out the vacuum Brake Booster hose assembly from the vehicle. Drill the vacuum Brake Booster hose and its clamp away from the check valve. Before installation put a small amount of denatured alcohol on the check valve male threads and fix the vacuum booster hose and clamp to this valve. Put the vacuum hose into place on the vehicle while connecting the power hose to the intake manifold vacuum port and adding alcohol if needed. Use the quick connect to connect power Brake Booster auxiliary pump then install the vacuum hose routing clip on the ball stud of the intake manifold and return the fuel injector sight shield to its appropriate place. Join the Brake Booster to the power vacuum check valve system and connect with denatured alcohol if needed. Install the windshield washer solvent heater if the vehicle has this component.

OEM Buick Brake Booster Vacuum Hose

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30 Brake Booster Vacuum Hoses found

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Buick Vacuum Hose Part Number: 42726972
$21.47 MSRP: $38.34
You Save: $16.87 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hose Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Hose, Vacuum Power Brake
Fits the following Buick Models:
- Encore | 2021-2022 | Base, Preferred | 4 Cyl 1.4 L GAS
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Buick Vacuum Hose Part Number: 84974395
$41.44 MSRP: $73.99
You Save: $32.55 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Booster Check Valve; Pipe, Vacuum Power Brake
- Replaces: 13388380
Fits the following Buick Models:
- Envision | 2016-2020 | Premium, Premium II | 4 Cyl 2.0 L GAS
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Buick Vacuum Hose Part Number: 84958580
$41.07 MSRP: $73.35
You Save: $32.28 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose Assembly-Power Brake Booster Vacuum; Booster Hose; Hose, Vacuum Power Brake
- Replaces: 84298056, 84341899
Fits the following Buick Models:
- Enclave | 2018-2024 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Vacuum Hose Part Number: 42429121
$57.35 MSRP: $103.83
You Save: $46.48 (45%)
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Product Specifications
- Other Name: Hose Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Hose, Vacuum Power Brake
- Replaces: 42357513
Fits the following Buick Models:
- Encore | 2016-2019 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Vacuum Tube Part Number: 23226568
$79.86 MSRP: $149.97
You Save: $70.11 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Pump Inlet; Brake Booster Vacuum Hose; Vacuum Hose; Booster Check Valve; Inlet Tube; Pipe, Vacuum Power Brake
- Replaces: 22806641, 23139855, 20920216
Fits the following Buick Models:
- LaCrosse | 2011-2016 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick Vacuum Hose Part Number: 84974396
$25.05 MSRP: $47.05
You Save: $22.00 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
- Replaces: 84126221
Fits the following Buick Models:
- Envision | 2017-2020 | Base, Essence, Preferred | 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Buick Vacuum Hose Part Number: 20918146
Product Specifications
- Other Name: Hose-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Hose, Vacuum Power Brake
- Replaces: 20815873, 25936847
Fits the following Buick Models:
- Enclave | 2009-2011 | CX, CXL | 6 Cyl 3.6 L GAS
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Buick Vacuum Hose Part Number: 13404564
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
Fits the following Buick Models:
- Verano | 2013-2016 | Premium, Turbo | 4 Cyl 2.0 L GAS
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Buick Vacuum Hose Part Number: 13344476
$97.87 MSRP: $174.75
You Save: $76.88 (44%)
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum (At Engine); Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
Fits the following Buick Models:
- Verano | 2013-2016 | Premium, Turbo | 4 Cyl 2.0 L GAS
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Buick Vacuum Hose Part Number: 15115078
Product Specifications
- Other Name: Hose-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Hose, Vacuum Power Brake
Fits the following Buick Models:
- Enclave | 2008 | CX, CXL | 6 Cyl 3.6 L GAS
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Buick Vacuum Hose Part Number: 10301021
Product Specifications
- Other Name: Hose-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Hose, Vacuum Power Brake
Fits the following Buick Models:
- Rendezvous | 2002-2007 | CX, CX Plus, CXL, CXL Plus, Ultra | 6 Cyl 3.4 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.6 L GAS
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Buick Vacuum Hose Part Number: 22953043
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
- Replaces: 20979746, 22802727, 20987696
Fits the following Buick Models:
- Regal | 2011-2013 | CXL, GS, Premium | 4 Cyl 2.0 L FLEX
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Buick Vacuum Hose Part Number: 23183113
Product Specifications
- Other Name: Pipe, Power Brake Booster Pump Inlet; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
- Replaces: 20961229
Fits the following Buick Models:
- Regal | 2014-2015 | Base, GS, Premium | 4 Cyl 2.0 L GAS
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Buick Vacuum Tube Part Number: 23248088
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Vacuum Hose; Pipe, Vacuum Power Brake
- Replaces: 20927512, 22802726
Fits the following Buick Models:
- LaCrosse | 2011-2016 | Base, Convenience, CX, CXL, Leather | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Regal | 2011-2017 | Base, CXL, Premium | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick Vacuum Tube Part Number: 13320294
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
Fits the following Buick Models:
- LaCrosse | 2010-2011 | CX, CXL, CXS | 6 Cyl 3.6 L GAS
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Buick Vacuum Hose Part Number: 13227542
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Pipe, Vacuum Power Brake
Fits the following Buick Models:
- Regal | 2011 | CXL | 4 Cyl 2.0 L FLEX
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Buick Vacuum Hose Part Number: 22884540
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Pump Inlet; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
- Replaces: 22791640
Fits the following Buick Models:
- Regal | 2012-2013 | GS, Premium | 4 Cyl 2.0 L FLEX
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Buick Vacuum Hose Part Number: 23226565
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Pump Inlet; Brake Booster Vacuum Hose; Inlet Tube; Pipe, Vacuum Power Brake
- Replaces: 20944392, 20920217, 22847862, 22806644
Fits the following Buick Models:
- LaCrosse | 2011-2016 | Base, Convenience, CX, CXL, Leather | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Regal | 2011-2017 | Base, CXL, Premium | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
View related parts
Buick Vacuum Hose Part Number: 13320295
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose
- Replaced by: 20935438
Fits the following Buick Models:
- LaCrosse | 2010 | CX, CXL, CXS | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L GAS
View related parts
Buick Vacuum Hose Part Number: 84439939
$16.79 MSRP: $30.00
You Save: $13.21 (45%)
Product Specifications
- Other Name: Pipe Assembly-Power Brake Booster Vacuum; Brake Booster Vacuum Hose; Pipe, Vacuum Power Brake
- Replaces: 84131599, 84259627
Fits the following Buick Models:
- LaCrosse | 2018-2019 | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L GAS

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Buick Brake Booster Vacuum Hose

Choose OEM Brake Booster Vacuum Hose, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Buick's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsGiant.com, you'll find it easy to get top-quality OEM Buick Brake Booster Vacuum Hose. You can shop at highly competitive prices and protect your budget. All our genuine Buick parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Buick Brake Booster Vacuum Hose Parts and Q&A

Vacuum Tube
23226563
Q: How to replace the brake booster vacuum hose rear pipe on 3.0L and 3.6L engines on Buick LaCrosse?
A:
You need to step on the Brake Pedal multiple times to empty the power vacuum Brake Booster reserve before replacing the vacuum rear pipe on 3.0l and 3.6l engines. Turn off power Brake Booster vacuum pipe and disconnect both its sensor connector and rear vacuum line retainer on the dash panel. Separate the vacuum sensor and check valve from the power Brake Booster while you take out the rear pipe from its retainers on the right front brake line and on the dash panel. To access the wheelhouse area place support under the vehicle and take off the front liner from the right front wheel. Disconnect the quick connect at the power Brake Booster pump bracket first and then take off the rear pipe from the vehicle. Positon the rear pipe then secure it to the power Brake Booster pump bracket and install its retaining clip. Connect the quick connector and return the right front wheelhouse front liner to place. Mount the rear pipe at its retainers on both the right front brake pipe and at retaining items 3 and 4 on the dash panel. Connect the vacuum sensor with check valve to the power Brake Booster, plug in the power brake vacuum sensor electronics, then put the power brake vacuum hose in place.
Vacuum Hose
20918146
Q: How to check and replace the Brake Booster Vacuum Hose and check valve on Buick Enclave?
A:
Before starting the process turn off the ignition and press the Brake Pedal several times until it becomes firm to drain the Brake Booster vacuum demand. Take out the windshield washer solvent heater part and disconnect the power vacuum Brake Booster check valve together with its attached hose from the Brake Booster. Begin by taking off the fuel injector sight shield and unfastening the vacuum hose routing clip off the intake manifold ball stud. Also disconnect the power vacuum Brake Booster hose from its location on the intake manifold vacuum port. Unplug the quick connect attachment from the power Brake Booster auxiliary supply pump and take out the vacuum Brake Booster hose assembly from the vehicle. Drill the vacuum Brake Booster hose and its clamp away from the check valve. Before installation put a small amount of denatured alcohol on the check valve male threads and fix the vacuum booster hose and clamp to this valve. Put the vacuum hose into place on the vehicle while connecting the power hose to the intake manifold vacuum port and adding alcohol if needed. Use the quick connect to connect power Brake Booster auxiliary pump then install the vacuum hose routing clip on the ball stud of the intake manifold and return the fuel injector sight shield to its appropriate place. Join the Brake Booster to the power vacuum check valve system and connect with denatured alcohol if needed. Install the windshield washer solvent heater if the vehicle has this component.