How to service and repair the vacuum brake booster on Mercury Cougar?

The service process of the vacuum brake booster requires users to start with air cleaner and mass air flow sensor detachment alongside air cleaner outlet tube extraction then proceed to disconnect the engine wiring harness electrical connector. The automatic transaxle fluid dipstick should be taken off before continuing with maintenance work. First remove the master cylinder before proceeding to remove the brake booster actuator rod retaining clip then disconnect the vacuum hose from the brake booster. Gently handle the accelerator or speed control cable before moving forward with brake booster removal. Installation requires insertion of the brake booster connecting rod properly through the bulkhead rubber boot followed by carrying out the removal steps in reverse order. Bleeding the brake system becomes vital after the installation process.

How to service the vacuum brake booster on Mercury Mariner?

The first step to servicing the vacuum brake booster requires a disconnect of the vacuum hose/check valve assembly from the brake booster. Unscrew the two master cylinder nuts before removing the parts while tightening the new nuts to 30 Nm (22 lb-ft) torque when returning them as standard. You should avoid removing brake tube fittings because the brake master cylinder assembly should move in a forward direction instead. Service of brake pedal or brake booster requires removal of stoplamp switch and speed control deactivator switch when present since both components should operate with the brake pedal in its resting position to prevent switch damage. The booster push rod clevis-locking pin needs to be discarded after one-time use so replace it with a new pin through a simple squeezing procedure followed by pulling away from the second end. The nose of the brake booster must be freed from its mounting position through four nuts needing to be tightened up to 23 Nm (17 lb-ft) during assembly. Reinstall the stoplamp switch and speed control deactivator switch only when you position the brake pedal to the at-rest position to stop both switches from suffering damage. Proceed with installation by following the order in reverse to the removal steps.

OEM Mercury Brake Booster

Brake Power Booster

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36 Brake Boosters found

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Mercury Brake Booster Part Number: 3W1Z-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster
Fits the following Mercury Models:
- Grand Marquis | 2003-2004 | GS, LS, LSE | 8 Cyl 4.6 L GAS
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Mercury Brake Booster Part Number: 5L2Z-2005-B
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Replaces: 1L5Z-2005-AA, XL2Z-2005-AA
Fits the following Mercury Models:
- Mountaineer | 1999-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Brake Booster Part Number: 5L8Z-2002-AA
Product Specifications
- Other Name: Kit - Brake Booster Repair; Power Brake Booster; Booster Assembly
Fits the following Mercury Models:
- Mariner | 2005-2006 | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Brake Booster Part Number: 5L8Z-2002-BA
Product Specifications
- Other Name: Kit - Brake Booster Repair; Power Brake Booster; Booster Assembly
Fits the following Mercury Models:
- Mariner | 2005-2006 | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Booster Assembly Part Number: 6L2Z-2002-B
Product Specifications
- Other Name: Kit - Brake Booster Repair; Power Brake Booster; Brake Booster
- Manufacturer Note: Service Kit
Fits the following Mercury Models:
- Mountaineer | 2006 | Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Brake Booster, Driver Side Part Number: F7RZ-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Booster Assembly
- Manufacturer Note: LHD, without ABS
- Position: Driver Side
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base, S, V6 | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Brake Booster Part Number: 9E5Z-2005-A
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster; Booster
- Manufacturer Note: When Replacing This Component, 2L523 Has To Be Replaced
Fits the following Mercury Models:
- Milan | 2010-2011 | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mercury Brake Booster Part Number: 5F1Z-2005-B
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster
- Replaces: 3F1Z-2005-BA
Fits the following Mercury Models:
- Sable | 2001-2005 | GS, LS, LS Premium | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Brake Booster Part Number: 5L2Z-2005-A
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Replaces: 3L2Z-2005-AB
Fits the following Mercury Models:
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Brake Booster Part Number: 6F9Z-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster
- Replaces: 5F9Z-2005-AA
Fits the following Mercury Models:
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Brake Booster Part Number: 6L5Z-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Replaces: 3L5Z-2005-AA
Fits the following Mercury Models:
- Mountaineer | 1998 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
View related parts
Mercury Brake Booster Part Number: 6L8Z-2002-B
Product Specifications
- Other Name: Kit - Brake Booster; Power Brake Booster; Booster Assembly; Kit - Brake Booster Repair
Fits the following Mercury Models:
- Mariner | 2006-2007 | Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Brake Booster Part Number: 7F2Z-2005-A
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster
- Replaces: 6F2Z-2005-A
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
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Mercury Brake Booster Part Number: F57Z-2005-A
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
Fits the following Mercury Models:
- Mountaineer | 1997 | Base | 8 Cyl 5.0 L GAS
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Mercury Brake Booster Part Number: F6AZ-2005-A
Product Specifications
- Other Name: Booster Assembly - Brake
Fits the following Mercury Models:
- Grand Marquis | 1992-1997 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Booster Assembly Part Number: F77Z2005HA
Product Specifications
- Other Name: Booster Assembly - Brake; Brake Booster
Fits the following Mercury Models:
- Mountaineer | 1997 | Base | 8 Cyl 5.0 L GAS
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Mercury Brake Booster Part Number: F8AZ-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Booster
Fits the following Mercury Models:
- Grand Marquis | 1998 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Brake Booster Part Number: F8CZ-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Booster Assembly
- Manufacturer Note: A/T
Fits the following Mercury Models:
- Tracer | 1998-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
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Mercury Brake Booster Part Number: F8CZ-2005-BA
Product Specifications
- Other Name: Booster Assembly - Brake; Booster Assembly
Fits the following Mercury Models:
- Tracer | 1997-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
View related parts
Mercury Brake Booster Part Number: XF1Z-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Booster
- Manufacturer Note: exc. Flex Fuel
Fits the following Mercury Models:
- Sable | 1996-1999 | G, GS, LS, LS Premium | 6 Cyl 3.0 L GAS

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1-20 of 36 Results

Mercury Brake Booster

If you own Mercury and want to keep it in top shape, choosing OEM Brake Booster is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Mercury Brake Booster at some of the affordable online prices without cutting quality. Every OEM Mercury part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Mercury Brake Booster increases the force of the pedals to make the braking of the car much more effective, requiring less effort of the legs. Mercury expanded on its 1938 debut into a brand that offered silent interiors and a smooth ride. It struck a chord between high-fashion styling and a price that was low enough to feel luxurious, but not so high as to put off luxury competition. Mid-size cars on display at the showrooms would absorb bumps, keep wind hush down, and heads turned. Removing the spacious interiors, tuning of the smooth suspension, drivers enjoyed that all the switches made land at the anticipated points of the fingers. Although the models such as Cougar and Grand Marquis were improved, the brand maintained a balance of comfort and value, which was familiar to teenagers and grandparents alike. Mercury had also established a reputation for making practical upgrades every few years rather than glitzy gimmicks. Brake Booster is an item that is placed between the pedal and master cylinder in the firewall and can increase the force of your foot with the help of vacuum or hydraulic pressure. A dual diaphragm Brake Booster fits snug in engine bays and it has a lot of assist to offer, ideal when space is minimal. Instead, single-diaphragm units are enlarged, and the diameter directly determines the biting force of the car on the road. Those requiring period correctness can replace with a factory-style Brake Booster, and hot-rod builders can attach smaller high-pressure ones to give it a modern pedal feel. Although the production of Mercury ceased, even after that, all the variants of the Brake Booster continued to be produced, which means that the lineage is uninterrupted with confidence.

Mercury Brake Booster Parts and Q&A

Brake Booster, Driver Side
F7RZ-2005-AA
Q: How to service and repair the vacuum brake booster on Mercury Cougar?
A:
The service process of the vacuum brake booster requires users to start with air cleaner and mass air flow sensor detachment alongside air cleaner outlet tube extraction then proceed to disconnect the engine wiring harness electrical connector. The automatic transaxle fluid dipstick should be taken off before continuing with maintenance work. First remove the master cylinder before proceeding to remove the brake booster actuator rod retaining clip then disconnect the vacuum hose from the brake booster. Gently handle the accelerator or speed control cable before moving forward with brake booster removal. Installation requires insertion of the brake booster connecting rod properly through the bulkhead rubber boot followed by carrying out the removal steps in reverse order. Bleeding the brake system becomes vital after the installation process.
Brake Booster
9L8Z-2005-A
Q: How to service the vacuum brake booster on Mercury Mariner?
A:
The first step to servicing the vacuum brake booster requires a disconnect of the vacuum hose/check valve assembly from the brake booster. Unscrew the two master cylinder nuts before removing the parts while tightening the new nuts to 30 Nm (22 lb-ft) torque when returning them as standard. You should avoid removing brake tube fittings because the brake master cylinder assembly should move in a forward direction instead. Service of brake pedal or brake booster requires removal of stoplamp switch and speed control deactivator switch when present since both components should operate with the brake pedal in its resting position to prevent switch damage. The booster push rod clevis-locking pin needs to be discarded after one-time use so replace it with a new pin through a simple squeezing procedure followed by pulling away from the second end. The nose of the brake booster must be freed from its mounting position through four nuts needing to be tightened up to 23 Nm (17 lb-ft) during assembly. Reinstall the stoplamp switch and speed control deactivator switch only when you position the brake pedal to the at-rest position to stop both switches from suffering damage. Proceed with installation by following the order in reverse to the removal steps.