How to remove and install a Brake Master Cylinder on a Subaru Legacy?

Place 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 for the brake fluid level indicator. Place rags or newspapers under the brake line fillings. Using a flare-nut wrench, unscrew the brake line tube nuts and allow any residual fluid to drain onto the rags. Remove the nuts that attach the brake master cylinder to the power brake booster. Remove the brake master cylinder from the engine compartment, being careful not to spill any fluid. If a new brake master cylinder is being installed, check and adjust the booster pushrod length. 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 to expel air. Repeat the procedure until no more air bubbles are present. Remove the bleed tubes and install plugs in the open ports. Replace the O-ring seal on the brake master cylinder (if equipped) and then place it over the studs on the booster and tighten the attaching nuts only finger tight at this time. Thread the brake line fittings into the brake master cylinder. Fully tighten the mounting nuts, then the brake line fittings. Fill the brake master cylinder reservoir with fluid, then bleed the brake master cylinder and the brake system. The remainder of installation is the reverse of removal. Test the operation of the brake system carefully before placing the vehicle into normal service.

Genuine Subaru Legacy Brake Master Cylinder

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38 Brake Master Cylinders found

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Subaru Legacy Master Cylinder Assembly (VDC)
Part Number: 26401AJ000
$168.65 MSRP: $246.57
You Save: $77.92 (32%)
Ships in 1-2 Business Days
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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 Legacy | 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 Legacy Master Cylinder Assembly
Part Number: 26401AE03A
$326.57 MSRP: $481.67
You Save: $155.10 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Master Cylinder
- Replaced by: 26401AC191
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2003-2004 Subaru Legacy | 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 Legacy 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 Legacy | 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 Legacy Master Cylinder Assembly
Part Number: 26401AC220
$326.57 MSRP: $481.67
You Save: $155.10 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 26401AC191
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998-2003 Subaru Legacy | 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 Legacy Master Cylinder Assembly (Abs)
Part Number: 26401AG010
$146.41 MSRP: $214.05
You Save: $67.64 (32%)
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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 Legacy | 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 Legacy Master Cylinder Kit
Part Number: 26449AL03A
$181.31 MSRP: $265.06
You Save: $83.75 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2016-2021 Subaru Legacy | 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 Legacy Master Cylinder Assembly
Part Number: 26401AC120
$175.35 MSRP: $256.37
You Save: $81.02 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 26401AC121
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999 Subaru Legacy | Brighton | 2.2L H4 Series
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Subaru Legacy Master Cylinder Assembly
Part Number: 26401AA241
$125.33 MSRP: $181.63
You Save: $56.30 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Master Cylinder
- Replaced by: 26401AA242
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1995-1996 Subaru Legacy | L | 2.2L H4
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Subaru Legacy Master Cylinder Kit
Part Number: 26449AN04A
$145.86 MSRP: $213.25
You Save: $67.39 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: MA CYL KIT
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2023 Subaru Legacy | 4 Cyl 2.4L, 4 Cyl 2.5L
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Subaru Legacy WVY35 Master Cylinder Kit
Part Number: 26449FJ011
$181.07 MSRP: $264.72
You Save: $83.65 (32%)
Ships in 1-3 Business Days
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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 Legacy | 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 Legacy MA CYL KIT LHD
Part Number: 26449AN07B
$145.86 MSRP: $213.25
You Save: $67.39 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Legacy | 4 Cyl 2.4L, 4 Cyl 2.5L
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Subaru Legacy Master Cylinder Assembly
Part Number: 26401AA401
$152.70 MSRP: $223.25
You Save: $70.55 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 26401AA402
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1993-1994 Subaru Legacy | L, LS
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Subaru Legacy Master Cylinder Assembly
Part Number: 26401AA400
$152.70 MSRP: $223.25
You Save: $70.55 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 26401AA402
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1990-1993 Subaru Legacy | Base, L, LS, LS-D
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Subaru Legacy 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
- Replaced by: 26401AC121
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998 Subaru Legacy | Brighton, L | 2.2L H4 , 2.2L H4 (New EVAPO)
View related parts
Subaru Legacy Master Cylinder Assembly
Part Number: 26401AJ020
$168.65 MSRP: $246.57
You Save: $77.92 (32%)
ADD TO CART
Product Specifications
- Replaced by: 26401AJ002
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012 Subaru Legacy | 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 Legacy 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 Legacy | 2.5i, 2.5i Premium | 2.5L H4
View related parts
Subaru Legacy 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 Legacy | 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 Legacy Master Cylinder Assembly
Part Number: 26401AC030
Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1996-1997 Subaru Legacy | L | 2.2L H4 , 2.2L H4 (New EVAPO)
View related parts
Subaru Legacy Master Cylinder Assembly LH
Part Number: 26401AE02B
Product Specifications
- Other Name: Master Cylinder Assembly; Master Cylinder
- Replaces: 26401AE02A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004 Subaru Legacy | Baja-B | 2.5L H4 Turbo
- 2000-2001 Subaru Legacy | Brighton | 2.5L H4
View related parts
Subaru Legacy 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 Legacy | Brighton | 2.5L H4

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1-20 of 38 Results

Subaru Legacy Brake Master Cylinder

The Subaru Legacy Brake Master Cylinder device offers reliable and effective braking control as it optimally generates hydraulic pressure. The Brake Master Cylinder with precision machined bore in aluminum or cast-iron construction offers better pedal feel while preventing air from entering the hydraulic system. It feeds two independent circuits, so if one side loses fluid, the other still works. This is one more thing that helps the Subaru sedan and wagon family maintain its safety reputation. This Brake Master Cylinder can be fitted into any first to sixth generation Subaru Legacy and provide firmer pedal response and shorter stopping distances. Every Legacy trim has the uniquely positioned Brake Master Cylinder fluid reservoir located high enough for easy checking, while compensating ports allow overfill fluid to flow smoothly, eliminating fade on long downhill runs. Inside the Brake Master Cylinder, return springs snap the pistons back the instant the driver lifts off. This prepares the system for the next stop, helps avoid brake drag, and helps Legacy conserve energy. When you include the standard all-wheel drive feature of the model, the stopping power matches the grip of its wheels on the road. Further, this makes the system feel sharp like that of a sports car during panic maneuvers. Subaru owners rely on the brand's engineering to last long, and the cylinder bore finish prevents wear. Because Brake Master Cylinders balance pressure front and rear, ABS modules in newer Subaru trims are able to work with greater accuracy, further reducing skid risk. Due to these features, the Subaru Legacy Brake Master Cylinder is a quality part that improves efficiency and protects the passengers for miles.

Our website stands as the go-to online destination for OEM Subaru Legacy Brake Master Cylinder. With complete lines of genuine Subaru Legacy 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 Legacy Brake Master Cylinder Parts Questions & Experts Answers

Master Cylinder Assembly (VDC)
26401AG030
Q:
How to remove and install a Brake Master Cylinder on a Subaru Legacy?
Posted by Sarah M.
A:
Place 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 for the brake fluid level indicator. Place rags or newspapers under the brake line fillings. Using a flare-nut wrench, unscrew the brake line tube nuts and allow any residual fluid to drain onto the rags. Remove the nuts that attach the brake master cylinder to the power Brake Booster. Remove the brake master cylinder from the engine compartment, being careful not to spill any fluid. If a new brake master cylinder is being installed, check and adjust the booster pushrod length. 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 to expel air. Repeat the procedure until no more air bubbles are present. Remove the bleed tubes and install plugs in the open ports. Replace the O-ring seal on the brake master cylinder (if equipped) and then place it over the studs on the booster and tighten the attaching nuts only finger tight at this time. Thread the brake line fittings into the brake master cylinder. Fully tighten the mounting nuts, then the brake line fittings. Fill the brake master cylinder reservoir with fluid, then bleed the brake master cylinder and the brake system. The remainder of installation is the reverse of removal. Test the operation of the brake system carefully before placing the vehicle into normal service.
Answered by Subaru Parts Specialist Gary / Sep 26, 2025

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