How to Replace a Brake Master Cylinder on a Subaru Outback?

Place some shop rags underneath the brake master cylinder to catch any spilled brake fluid, then remove the brake fluid from the reservoir. Unplug the electrical connector from the brake fluid level indicator and place some rags or newspapers under the brake line fittings. Using a flare-nut wrench, unscrew the brake line tube nuts and allow any residual fluid to drain onto the rags. Remove the brake master cylinder-to-power brake booster mounting nuts and remove the brake master cylinder from the engine compartment. If a new brake master cylinder is being installed, the power brake booster pushrod length must be checked and adjusted. Bench bleed the new brake master cylinder before installing it, attach a pair of brake master cylinder bleeder tubes to the outlet ports of the brake master cylinder, fill the reservoir with brake fluid, slowly push the pistons into the brake master cylinder, remove the bleed tubes, one at a time and install plugs in the open ports to prevent fluid leakage and air from entering, replace the O-ring seal on the brake master cylinder, thread the brake line fittings into the brake master cylinder, fill the brake master cylinder reservoir with fluid, then bleed the brake master cylinder and the brake system, have an assistant depress the brake pedal and hold the pedal to the floor, loosen the fitting just enough to allow air and fluid to escape then tighten it lightly, repeat this procedure on both fittings until the fluid is clear of air bubbles and then tighten the fittings securely, rinse the area under the brake master cylinder with clean water, fully tighten the mounting nuts, then the brake line fittings, tighten the brake master cylinder mounting nuts, and test the operation of the brake system carefully before placing the vehicle into normal service.

Genuine Subaru Outback Brake Master Cylinder

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28 Brake Master Cylinders found

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Subaru Outback Master Cylinder Assembly (VDC)
Part Number: 26401AJ000
$168.65 MSRP: $246.57
You Save: $77.92 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AJ002
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2014 Subaru Outback | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.6L H6
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Subaru Outback Master Cylinder Assembly
Part Number: 26401AE03A
$326.57 MSRP: $481.67
You Save: $155.10 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly; Master Cylinder
- Replaced by: 26401AC191
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003-2004 Subaru Outback | Baja, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, L, Limited, L-S, SUS Flat6, SUS Limited | 2.5L H4, 3.0L H6
View related parts
Subaru Outback Ma Cylinder Assembly (VDC)LH
Part Number: 26401AJ001
$168.65 MSRP: $246.57
You Save: $77.92 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AJ002
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2014 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.5L H4 DOHC, 3.6L H6
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Subaru Outback Master Cylinder Assembly
Part Number: 26401AC220
$326.57 MSRP: $481.67
You Save: $155.10 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AC191
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998-2003 Subaru Outback | Baja, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, GT, L, Limited, LS, Out Back, SUS, SUS Flat6, SUS Limited | 2.2L H4 , 2.2L H4 (New EVAPO), 2.5L H4, 3.0L H6
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Subaru Outback Master Cylinder Assembly (Abs)
Part Number: 26401AG010
$146.41 MSRP: $214.05
You Save: $67.64 (32%)
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly; Master Cylinder
- Replaced by: 26401AG012
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Outback | 2.5i, 2.5i Limited, 3.0R, 3.0R LL-Bean, Base, GT, GT Limited | 2.5L H4, 2.5L H4 Turbo, 3.0L H6
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Subaru Outback Master Cylinder Kit
Part Number: 26449AL03A
$181.31 MSRP: $265.06
You Save: $83.75 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Kit
- Replaced by:
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2016-2021 Subaru Outback | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.4L H4 DIT, 2.5L H4, 2.5L H4 DI, 3.6L H6
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Subaru Outback Master Cylinder Assembly
Part Number: 26401AC120
$175.35 MSRP: $256.37
You Save: $81.02 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AC121
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999 Subaru Outback | Brighton | 2.2L H4 Series
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Subaru Outback Master Cylinder Assembly
Part Number: 26401AA241
$125.33 MSRP: $181.63
You Save: $56.30 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly; Master Cylinder
- Replaced by: 26401AA242
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996 Subaru Outback | L | 2.2L H4
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Subaru Outback Master Cylinder Kit
Part Number: 26449AN04A
$145.86 MSRP: $213.25
You Save: $67.39 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: MA CYL KIT
- Replaced by:
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2023 Subaru Outback | 4 Cyl 2.4L, 4 Cyl 2.5L
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Subaru Outback WVY35 Master Cylinder Kit
Part Number: 26449FJ011
$181.07 MSRP: $264.72
You Save: $83.65 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Kit; Master Cylinder
- Replaced by: 26449FJ013
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2017 Subaru Outback | 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium | 2.5L H4, 3.6L H6
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Subaru Outback MA CYL KIT LHD
Part Number: 26449AN07B
$145.86 MSRP: $213.25
You Save: $67.39 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: MA CYL KIT LHD
- Replaced by:
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Outback | 4 Cyl 2.4L, 4 Cyl 2.5L
View related parts
Subaru Outback Master Cylinder Assembly
Part Number: 26401AC200
$175.35 MSRP: $256.37
You Save: $81.02 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AC121
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Outback | Brighton, L | 2.2L H4 , 2.2L H4 (New EVAPO)
View related parts
Subaru Outback Master Cylinder Assembly
Part Number: 26401AJ020
$168.65 MSRP: $246.57
You Save: $77.92 (32%)
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AJ002
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012 Subaru Outback | 2.5GT Limited, 2.5i, 2.5i Limited, 2.5i Premium, 3.6R, 3.6R Limited, 3.6R Premium | 2.5L H4 SOHC, 2.5L H4 Turbo, 3.6L H6
View related parts
Subaru Outback Ma Cylinder Kit
Part Number: 26449FJ001
$170.61 MSRP: $249.43
You Save: $78.82 (32%)
ADD TO CART
Product Specifications
- Other Name: Master Cylinder Kit; Master Cylinder
- Replaced by: 26449FJ003
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2017 Subaru Outback | 2.5i, 2.5i Premium | 2.5L H4
View related parts
Subaru Outback Master Cylinder Assembly (VDC)
Part Number: 26401AG030
Product Specifications
- Other Name: Master Cylinder Assembly; Master Cylinder
- Replaced by: 26401AG031
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Outback | 2.5i, 2.5i Base, 2.5i Limited, 3.0R, 3.0R Limited, 3.0R LL-Bean, Base, GT, GT Limited, XT Limited | 2.5L H4, 2.5L H4 Turbo, 3.0L H6
View related parts
Subaru Outback Master Cylinder Assembly
Part Number: 26401AC030
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by:
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1997 Subaru Outback | L | 2.2L H4 , 2.2L H4 (New EVAPO)
View related parts
Subaru Outback Master Cylinder Assembly LH
Part Number: 26401AE02B
Product Specifications
- Other Name: Master Cylinder Assembly; Master Cylinder
- Replaced by:
- Replaces: 26401AE02A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004 Subaru Outback | Baja-B | 2.5L H4 Turbo
- 2000-2001 Subaru Outback | Brighton | 2.5L H4
View related parts
Subaru Outback Master Cylinder Assembly LH
Part Number: 26401AE02A
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AE02B
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2000-2001 Subaru Outback | Brighton | 2.5L H4
View related parts
Subaru Outback Master Cylinder Assembly
Part Number: 26401AC020
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AA232
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1997 Subaru Outback | Brighton, L | 2.2L H4 , 2.2L H4 (New EVAPO)
View related parts
Subaru Outback Master Cylinder Assembly
Part Number: 26401AA231
Product Specifications
- Other Name: Master Cylinder Assembly
- Replaced by: 26401AA232
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996 Subaru Outback | Brighton, L | 2.2L H4

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1-20 of 28 Results

Subaru Outback Brake Master Cylinder

The Subaru Outback Brake Master Cylinder converts pedal force into hydraulic pressure to stop the vehicle. The two pistons, seals, and springs inside a bore of the Brake Master Cylinder slide in and out. As the external forces are housed in the cast iron or aluminum, the Subaru system is still functional if one fails. When the pedal or booster pushes a pushrod, the pistons will move forward to pressurize fluid. Return springs will pull the pistons back, and the ports allow fresh fluid to enter from the reservoir. The Brake Master Cylinder's hydraulic fluid reservoir is either integral with the body or mounted externally in nylon or plastic sealed by O-rings, and whether integral or external has a cap to keep moisture out. The front of the vacuum booster typically has each Brake Master Cylinder fixed to it. The regular movement of fluid in the Brake Master Cylinder ensures that Outback lines are always full and air free. The braking assembly in a Subaru Outback relies on this component to avoid low pedal feel, leaks, and corrosion that can cut stopping power, maintaining consistent control for every Subaru Outback trip.

Our website stands as the go-to online destination for OEM Subaru Outback Brake Master Cylinder. With complete lines of genuine Subaru Outback Brake Master Cylinder available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Outback Brake Master Cylinder Parts Questions & Experts Answers

Master Cylinder Assembly (VDC)
26401AJ000
Q:
How to Replace a Brake Master Cylinder on a Subaru Outback?
Posted by Devin L.
A:
Place some shop rags underneath the brake master cylinder to catch any spilled brake fluid, then remove the brake fluid from the reservoir. Unplug the electrical connector from the brake fluid level indicator and place some rags or newspapers under the brake line fittings. Using a flare-nut wrench, unscrew the brake line tube nuts and allow any residual fluid to drain onto the rags. Remove the brake master cylinder-to-power Brake Booster mounting nuts and remove the brake master cylinder from the engine compartment. If a new brake master cylinder is being installed, the power brake booster pushrod length must be checked and adjusted. Bench bleed the new brake master cylinder before installing it, attach a pair of brake master cylinder bleeder tubes to the outlet ports of the brake master cylinder, fill the reservoir with brake fluid, slowly push the pistons into the brake master cylinder, remove the bleed tubes, one at a time and install plugs in the open ports to prevent fluid leakage and air from entering, replace the O-ring seal on the brake master cylinder, thread the brake line fittings into the brake master cylinder, fill the brake master cylinder reservoir with fluid, then bleed the brake master cylinder and the brake system, have an assistant depress the brake pedal and hold the pedal to the floor, loosen the fitting just enough to allow air and fluid to escape then tighten it lightly, repeat this procedure on both fittings until the fluid is clear of air bubbles and then tighten the fittings securely, rinse the area under the brake master cylinder with clean water, fully tighten the mounting nuts, then the brake line fittings, tighten the brake master cylinder mounting nuts, and test the operation of the brake system carefully before placing the vehicle into normal service.
Answered by Subaru Parts Specialist Nolan / Jan 03, 2023

Genuine Subaru Outback Brake Master Cylinder

28 Brake Master Cylinders found

Subaru Outback Master Cylinder Assembly (VDC)

Subaru Outback Master Cylinder Assembly

Subaru Outback Ma Cylinder Assembly (VDC)LH

Subaru Outback Master Cylinder Assembly

Subaru Outback Master Cylinder Assembly (Abs)

Subaru Outback Master Cylinder Kit

Subaru Outback Master Cylinder Assembly

Subaru Outback Master Cylinder Assembly

Subaru Outback Master Cylinder Kit

Subaru Outback WVY35 Master Cylinder Kit

Subaru Outback MA CYL KIT LHD

Subaru Outback Master Cylinder Assembly

Subaru Outback Master Cylinder Assembly

Subaru Outback Ma Cylinder Kit

Subaru Outback Master Cylinder Assembly (VDC)

Subaru Outback Master Cylinder Assembly

Subaru Outback Master Cylinder Assembly LH

Subaru Outback Master Cylinder Assembly LH

Subaru Outback Master Cylinder Assembly

Subaru Outback Master Cylinder Assembly

Subaru Outback Brake Master Cylinder

Subaru Outback Brake Master Cylinder Parts Questions & Experts Answers

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