How to Service and Repair a Brake Master Cylinder Safely on Mercury Mariner?

To maintain brake master cylinder, disconnect your battery and warning switch and empty tricks of the brake fluid. In the case of manual transmissions, remove the feed hose of the clutch. Change the master cylinder, fittings to 15 Nm, new nuts to 30 Nm. Vent the system use approved DOT 3 brake fluid, do not spill.

How to remove and replace the brake master cylinder on Mercury Mariner?

In order to replace the brake master cylinder, de-connect the brake fluid warning switch and drain fluid off the reservoir. In case it exists, deconnect the brachial plug and insert the hose of the clutch. Disconnect brake tube fittings, screw to 25 Nm when fitting in and bleed master cylinder. Clean brake fluid and spillage.

OEM Mercury Mariner Brake Master Cylinder

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11 Brake Master Cylinders found

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Mercury Mariner Master Cylinder Part Number: 9L8Z-2140-A
$147.65 MSRP: $242.95
You Save: $95.30 (40%)
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Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Premier | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Master Cylinder Part Number: 6L8Z-2140-C
$145.81 MSRP: $201.71
You Save: $55.90 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Master Cylinder Part Number: 6L8Z-2140-B
$95.13 MSRP: $129.46
You Save: $34.33 (27%)
ADD TO CART
Product Specifications
- Other Name: Kit - Master Cylinder; Brake Master Cylinder; Kit - Master Cylinder Repair
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Master Cylinder Part Number: 9L8Z-2140-C
$91.82 MSRP: $127.03
You Save: $35.21 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Premier | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Master Cylinder Part Number: 8M6Z-2140-A
Product Specifications
- Other Name: Cylinder Assembly - Master; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Master Cylinder Part Number: 5M6Z-2140-B
Product Specifications
- Other Name: Cylinder Assembly - Master; Brake Master Cylinder
- Replaces: 5M6Z-2140-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mercury Mariner | Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Master Cylinder Part Number: 8L8Z-2140-A
$145.42 MSRP: $230.91
You Save: $85.49 (38%)
Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | Base, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mercury Mariner Master Cylinder Part Number: 9M6Z-2140-A
$164.99 MSRP: $262.00
You Save: $97.01 (38%)
Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Manufacturer Note: Service Kit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
View related parts
Mercury Mariner Master Cylinder Part Number: 8L8Z-2140-C
Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2008 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mercury Mariner Master Cylinder Part Number: 6L8Z-2140-D
Product Specifications
- Other Name: Kit - Master Cylinder; Brake Master Cylinder; Kit - Master Cylinder Repair
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
View related parts
Mercury Mariner Master Cylinder Part Number: 6L8Z-2140-A
Product Specifications
- Other Name: Kit - Master Cylinder Repair; Brake Master Cylinder
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS

Mercury Mariner Brake Master Cylinder

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Mercury Mariner Brake Master Cylinder Parts and Q&A

Master Cylinder
6L8Z-2140-B
Q: How to Service and Repair a Brake Master Cylinder Safely on Mercury Mariner?
A: To maintain brake master cylinder, disconnect your battery and warning switch and empty tricks of the brake fluid. In the case of manual transmissions, remove the feed hose of the clutch. Change the master cylinder, fittings to 15 Nm, new nuts to 30 Nm. Vent the system use approved DOT 3 brake fluid, do not spill.
Master Cylinder
9L8Z-2140-A
Q: How to remove and replace the brake master cylinder on Mercury Mariner?
A: In order to replace the brake master cylinder, de-connect the brake fluid warning switch and drain fluid off the reservoir. In case it exists, deconnect the brachial plug and insert the hose of the clutch. Disconnect brake tube fittings, screw to 25 Nm when fitting in and bleed master cylinder. Clean brake fluid and spillage.