How to inspect and maintain Brake Booster and brake system, including disc brakes, drum brakes, and the parking brake on Subaru Forester?

In addition to specified intervals, brakes should be inspected every time the wheels are removed or when a defect is suspected. Symptoms indicating potential brake system defects include the vehicle pulling to one side when the brake pedal is pressed, squealing or dragging noises when brakes are applied, excessive brake pedal travel, pedal pulsations, or brake fluid leaks, usually onto the inside of the tire or wheel. To inspect disc brakes, loosen wheel lug nuts, raise the vehicle on jackstands, remove the wheels, and check pad thickness by inspecting through the caliper's inspection window. Replace pads if lining material is too thin. If uncertain, remove the caliper for further inspection. Clean and re-measure pads with brake cleaner. Measure disc thickness with a micrometer and inspect for damage. Before reinstalling wheels, check brake lines and hoses for damage, wear, leakage, and proper routing. For drum brakes, ensure the parking brake is off, remove the drums, and clean the brake assembly. Note lining thickness on brake shoes, replace if necessary, and check for cracks or glazing. Examine components for fluid leakage, and check the wheel cylinders for signs of leakage. Wipe the inside of the drum, inspect it for imperfections, and repeat the procedure for the other wheel. For the brake booster, perform a series of tests as described while seated in the driver's seat. If the brakes do not operate as described, the brake booster has failed. To check the parking brake, park the vehicle on a steep hill with the parking brake set and the transaxle in Neutral to ensure it can prevent the vehicle from rolling. Adjust the parking brake if necessary.

Genuine Subaru Forester Brake Booster

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14 Brake Boosters found

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Subaru Forester PB001352 Vacuum Booster A
Part Number: 26402FJ010
$286.95 MSRP: $419.52
You Save: $132.57 (32%)
ADD TO CART
Product Specifications
- Other Name: Vacuum Booster Assembly; Booster Assembly, Brake Booster
- Replaced by: 26402FJ012
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2014-2015 Subaru Forester | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring | 2.5L H4
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Subaru Forester Vacuum Booster Assembly
Part Number: 26402SC010
$347.24 MSRP: $507.67
You Save: $160.43 (32%)
ADD TO CART
Product Specifications
- Other Name: Booster Assembly, Brake Booster
- Replaced by: 26402SC011
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2009-2013 Subaru Forester | X, X Limited, X Premium, XS, XT, XT Limited | 2.5L H4 DOHC, 2.5L H4 DOHC Turbo, 2.5L H4 SOHC
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Subaru Forester Vacuum Booster Assembly LH
Part Number: 26402FJ110
$271.43 MSRP: $396.83
You Save: $125.40 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vacuum Booster Assembly
- Replaced by: 26402FJ111
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2018 Subaru Forester | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Touring | 2.5L H4
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Subaru Forester Vacuum Booster Assembly
Part Number: 26402FL010
$260.48 MSRP: $380.82
You Save: $120.34 (32%)
ADD TO CART
Product Specifications
- Other Name: Vacuum Booster Ay
- Replaced by: 26402FL011
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2019-2021 Subaru Forester | Base, Limited, Premium, Sport, Touring
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Subaru Forester Vacuum Booster Assembly LH
Part Number: 26402FJ130
$277.64 MSRP: $405.90
You Save: $128.26 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vacuum Booster Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2018 Subaru Forester | 2.0XT Premium, 2.0XT Touring | 2.0L H4
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Subaru Forester PB001353 Vacuum Booster A
Part Number: 26402FJ030
$305.03 MSRP: $445.95
You Save: $140.92 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vacuum Booster Assembly; Booster Assembly, Brake Booster
- Replaced by: 26402FJ032
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2014-2015 Subaru Forester | 2.0XT Premium, 2.0XT Touring | 2.0L H4
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Subaru Forester Vacuum Booster Assembly
Part Number: 26402FE420
Product Specifications
- Other Name: Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2008 Subaru Forester | Forester Sports, L.L.Bean, X, XS, XT | 2.5L H4, 2.5L H4 Turbo
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Subaru Forester Vacuum Booster Assembly
Part Number: 26402SA070
$360.38 MSRP: $526.87
You Save: $166.49 (32%)
Ships in 1-3 Business Days
Product Specifications
- Other Name: Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2005 Subaru Forester | L.L.Bean, X, XS, XT | 2.5L H4, 2.5L H4 Turbo
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Subaru Forester Vacuum Booster Assembly C0U4
Part Number: 26402SA130
Product Specifications
- Other Name: Vacuum Booster Assembly; Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2008 Subaru Forester | Forester Sports, XT | 2.5L H4 Turbo
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Subaru Forester Vacuum Booster Assembly
Part Number: 26402SA060
Product Specifications
- Other Name: Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003 Subaru Forester | X, XS | 2.5L H4
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Subaru Forester Vacuum Booster Assembly
Part Number: 26402FC200
Product Specifications
- Other Name: Booster Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002 Subaru Forester | L, S | 2.5L H4 SOHC
View related parts
Subaru Forester Vacuum Booster Assembly
Part Number: 26402FC070
Product Specifications
- Other Name: Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998-2000 Subaru Forester | Base, L, S | 2.5L H4 DOHC, 2.5L H4 DOHC (New EVAPO), 2.5L H4 SOHC
View related parts
Subaru Forester Vacuum Booster Assembly
Part Number: 26402FC140
Product Specifications
- Other Name: Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2001 Subaru Forester | L, S | 2.5L H4 SOHC
View related parts
Subaru Forester Vacuum Booster Assembly C0U4
Part Number: 26402SA080
Product Specifications
- Other Name: Vacuum Booster Assembly; Booster Assembly, Brake Booster
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005 Subaru Forester | XT | 2.5L H4 Turbo

Subaru Forester Brake Booster

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Subaru Forester Brake Booster Parts Questions & Experts Answers

Vacuum Booster Assembly
26402SA070
Q: How to inspect and maintain Brake Booster and brake system, including disc brakes, drum brakes, and the parking brake on Subaru Forester?
A: In addition to specified intervals, brakes should be inspected every time the wheels are removed or when a defect is suspected. Symptoms indicating potential brake system defects include the vehicle pulling to one side when the brake pedal is pressed, squealing or dragging noises when brakes are applied, excessive brake pedal travel, pedal pulsations, or brake fluid leaks, usually onto the inside of the tire or wheel. To inspect disc brakes, loosen wheel lug nuts, raise the vehicle on jackstands, remove the wheels, and check pad thickness by inspecting through the caliper's inspection window. Replace pads if lining material is too thin. If uncertain, remove the caliper for further inspection. Clean and re-measure pads with brake cleaner. Measure disc thickness with a micrometer and inspect for damage. Before reinstalling wheels, check brake lines and hoses for damage, wear, leakage, and proper routing. For drum brakes, ensure the parking brake is off, remove the drums, and clean the brake assembly. Note lining thickness on brake shoes, replace if necessary, and check for cracks or glazing. Examine components for fluid leakage, and check the wheel cylinders for signs of leakage. Wipe the inside of the drum, inspect it for imperfections, and repeat the procedure for the other wheel. For the brake booster, perform a series of tests as described while seated in the driver's seat. If the brakes do not operate as described, the brake booster has failed. To check the parking brake, park the vehicle on a steep hill with the parking brake set and the transaxle in Neutral to ensure it can prevent the vehicle from rolling. Adjust the parking brake if necessary.