How to remove and install a master cylinder?

Brake fluid may damage paint, so cover all painted surfaces and avoid spilling fluid during the procedure. To remove the brake master cylinder, start by removing the mounting fasteners for the air conditioning accumulator/drier and siphoning the brake fluid from the brake master cylinder reservoir. Unplug the electrical connector for the fluid level sensor and, if applicable, remove the hose from the fluid reservoir leading to the clutch master cylinder. Place rags under the brake line fittings, then unscrew the tube nuts at the brake master cylinder, and plug the ends of the lines to prevent contamination. Remove the brake master cylinder mounting nuts and detach it from the power brake booster. Discard any remaining fluid in the reservoir. If installing a new brake master cylinder without a reservoir, transfer the reservoir from the old brake master cylinder to the new one using new seals. Bench bleed the new brake master cylinder before installing it. Mount the brake master cylinder in a vise and attach a pair of brake master cylinder bleeder tubes to the outlet ports. Fill the reservoir with the recommended brake fluid, and slowly push the pistons into the brake master cylinder to expel air from the pressure chambers into the reservoir. Repeat until no more air bubbles are present. Remove the bleed tubes, install plugs in the open ports, and install the reservoir cap. Install the brake master cylinder over the power brake booster studs, tighten the mounting nuts, and thread the brake line fittings into the brake master cylinder. Fully tighten the mounting nuts and brake line fittings securely. Fill the brake master cylinder reservoir with fluid, bleed the brake master cylinder and brake system, then rinse the area under the brake master cylinder with clean water. Test the brake system's operation before using the vehicle normally.

Genuine Ford Mustang Brake Master Cylinder

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14 Brake Master Cylinders found

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Ford Mustang Cylinder Assembly - Master
Part Number: FR3Z-2140-C
- Other Name: Cylinder Assy - Master; Master Cylinder
$106.14 MSRP: $210.91
You Save: $104.77 (50%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.7L PFI NA, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly - Master
Part Number: CR3Z-2140-A
- Other Name: Cylinder Assy - Master
- Replaced by: DR3Z-2140-A
$114.40 MSRP: $189.09
You Save: $74.69 (40%)

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Fits the following Vehicles:
2013-2014 Ford Mustang | 6 Cyl 3.7L PFI NA, 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L DOHC EFI S/C ALUM, 8 Cyl 5.8L DOHC SC | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assy - Master
Part Number: AR3Z-2140-A
- Replaced by: DR3Z-2140-A
$114.40 MSRP: $189.09
You Save: $74.69 (40%)

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Fits the following Vehicles:
2010-2012 Ford Mustang | 6 Cyl 3.7L PFI NA, 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.4L DOHC EFI S/C ALUM, 8 Cyl 5.8L DOHC SC | 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly - Master
Part Number: FR3Z-2140-A
- Other Name: Cylinder Assy - Master; Master Cylinder
$112.75 MSRP: $179.82
You Save: $67.07 (38%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 8 Cyl 5.0L MOD DOHC SEFI NA | 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly - Master
Part Number: FR3Z-2140-B
- Other Name: Cylinder Assy - Master; Master Cylinder
$112.75 MSRP: $179.82
You Save: $67.07 (38%)

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More Info
Fits the following Vehicles:
2015-2019 Ford Mustang | 8 Cyl 5.0L MOD DOHC SEFI NA | 6-Speed Automatic Transmission (6R80), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly - Master
Part Number: FR3Z-2140-D
- Other Name: Cylinder Assy - Master; Master Cylinder
$121.98 MSRP: $194.55
You Save: $72.57 (38%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.7L PFI NA, 8 Cyl 5.0L MOD DOHC SEFI NA | 6-Speed Automatic Transmission (6R80), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assy - Master
Part Number: 4R3Z-2140-AA
- Replaced by: 6R3Z-2140-AA
$126.54 MSRP: $201.82
You Save: $75.28 (38%)
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Fits the following Vehicles:
2005 Ford Mustang | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.8L DOHC SC | 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly - Master
Part Number: 6R3Z-2140-AA
- Other Name: Cylinder Assy - Master; Master Cylinder
- Replaces: 4R3Z-2140-AA
$126.54 MSRP: $201.82
You Save: $75.28 (38%)
More Info
Fits the following Vehicles:
2005-2008 Ford Mustang | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.4L DOHC EFI S/C ALUM, 8 Cyl 5.8L DOHC SC | 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission (T56), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly - Master
Part Number: 9R3Z-2140-A
- Other Name: Cylinder Assy - Master; Master Cylinder
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Fits the following Vehicles:
2009 Ford Mustang | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.4L DOHC EFI S/C ALUM, 8 Cyl 5.8L DOHC SC | 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission (T56), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Cylinder Assembly Master
Part Number: E4DZ2140A
- Other Name: Cylinder Assy - Master; Master Cylinder
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Fits the following Vehicles:
1982-1986 Ford Mustang | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L, 8 Cyl 4.2L, 8 Cyl 5.0L | 3AT C3, 3AT C5, 4AT AOD, 4MT, 5MT
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Ford Mustang Cylinder Assy - Master
Part Number: F6ZZ-2140-A
- Other Name: Master Cylinder
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Fits the following Vehicles:
1996-1998 Ford Mustang | 6 Cyl 3.8L, 8 Cyl 4.6L | 4AT 4R70W, 5MT
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Ford Mustang Cylinder Assy - Master
Part Number: F9ZZ-2140-CA
- Other Name: Master Cylinder
More Info
Fits the following Vehicles:
1999-2004 Ford Mustang | 6 Cyl 3.8L, 6 Cyl 3.8L OHV EFI, 6 Cyl 3.9L OHV EFI NA, 8 Cyl 4.6L, 8 Cyl 5.4L | 4AT 4R70W, 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 5MT, 5-Speed Manual Transmission (T450D), 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission Tremec T56, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
View related parts
Ford Mustang Cylinder Assembly - Master
Part Number: F9ZZ-2140-DA
- Other Name: Cylinder Assy - Master; Master Cylinder
More Info
Fits the following Vehicles:
1999-2004 Ford Mustang | 6 Cyl 3.8L, 6 Cyl 3.8L OHV EFI, 6 Cyl 3.9L OHV EFI NA, 8 Cyl 4.6L, 8 Cyl 5.4L | 4AT 4R70W, 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 5MT, 5-Speed Manual Transmission (T450D), 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission Tremec T56, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang Kit - Master Cylinder Repair
Part Number: XR3Z-2140-BA
- Other Name: Master Cylinder
- Manufacturer Note: GT & Cobra w/hydroboost, w/Traction Assist
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Fits the following Vehicles:
1999-2000 Ford Mustang | 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.4L | 4AT 4R70W, 5MT
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Ford Mustang Brake Master Cylinder Parts Questions & Answers

Cylinder Assy - Master
4R3Z-2140-AA
Q: How to remove and install a master cylinder?
A: Brake fluid may damage paint, so cover all painted surfaces and avoid spilling fluid during the procedure. To remove the brake master cylinder, start by removing the mounting fasteners for the air conditioning accumulator/drier and siphoning the brake fluid from the brake master cylinder reservoir. Unplug the electrical connector for the fluid level sensor and, if applicable, remove the hose from the fluid reservoir leading to the clutch master cylinder. Place rags under the brake line fittings, then unscrew the tube nuts at the brake master cylinder, and plug the ends of the lines to prevent contamination. Remove the brake master cylinder mounting nuts and detach it from the power Brake Booster. Discard any remaining fluid in the reservoir. If installing a new brake master cylinder without a reservoir, transfer the reservoir from the old brake master cylinder to the new one using new seals. Bench bleed the new brake master cylinder before installing it. Mount the brake master cylinder in a vise and attach a pair of brake master cylinder bleeder tubes to the outlet ports. Fill the reservoir with the recommended brake fluid, and slowly push the pistons into the brake master cylinder to expel air from the pressure chambers into the reservoir. Repeat until no more air bubbles are present. Remove the bleed tubes, install plugs in the open ports, and install the reservoir cap. Install the brake master cylinder over the power brake booster studs, tighten the mounting nuts, and thread the brake line fittings into the brake master cylinder. Fully tighten the mounting nuts and brake line fittings securely. Fill the brake master cylinder reservoir with fluid, bleed the brake master cylinder and brake system, then rinse the area under the brake master cylinder with clean water. Test the brake system's operation before using the vehicle normally.