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

A service and repair operation of the vacuum brake booster starts with disconnecting the battery. New master cylinder nuts receive installation while you remove the two existing nuts before discarding them. Follow the installation procedure by tightening the nuts to 30 Nm (22 ft. lbs.). Moving the brake master cylinder assembly forward will suffice instead of removing brake tube fittings. Begin your brake booster vacuum hose/check valve assembly removal by disconnecting it from the component. Begin the replacement by uninstalling the brake pedal position (BPP) switch together with any present speed control deactivator switch. Proceed by disconnecting the brake booster pushrod pin redundant clip then remove the brake booster pushrod self-locking pin together with the outer bushing. Take off the brake booster pushrod from the brake pedal pin and place it to the side. Install the brake booster after removing its four securing nuts then tighten them to 23 Nm (17 ft. lbs.). Conclude the installation by performing the reversal steps of the removal process.

OEM Mercury Mariner Brake Booster

Brake Power Booster

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6 Brake Boosters found

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Mercury Mariner Brake Booster
Part Number: 9M6Z-2005-A
$491.11 MSRP: $805.45
You Save: $314.34 (40%)
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster
- 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)
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Mercury Mariner Brake Booster
Part Number: 6L8Z-2002-A
$109.90 MSRP: $152.03
You Save: $42.13 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Brake Booster Repair; Booster Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2008 Mercury Mariner | Base, Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Brake Booster
Part Number: 5L8Z-2002-BA
Product Specifications
- Other Name: Kit - Brake Booster Repair; Power Brake Booster; Booster Assembly
- 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
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Mercury Mariner Brake Booster
Part Number: 5L8Z-2002-AA
Product Specifications
- Other Name: Kit - Brake Booster Repair; Power Brake Booster; Booster Assembly
- 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
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Mercury Mariner Brake Booster
Part Number: 9L8Z-2005-A
$155.72 MSRP: $247.27
You Save: $91.55 (38%)
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Manufacturer Note: Service Kit
- Replaces: 8L8Z-2005-A, 8L8Z-2002-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | Base, Premier | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Brake Booster
Part Number: 6L8Z-2002-B
Product Specifications
- Other Name: Kit - Brake Booster; Power Brake Booster; Booster Assembly; Kit - Brake Booster Repair
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mercury Mariner | Convenience, Luxury, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS

Mercury Mariner Brake Booster

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Mercury Mariner Brake Booster Parts Questions & Experts Answers

Brake Booster
6L8Z-2002-B
Q: How to service and repair the vacuum brake booster on Mercury Mariner?
A: A service and repair operation of the vacuum brake booster starts with disconnecting the battery. New master cylinder nuts receive installation while you remove the two existing nuts before discarding them. Follow the installation procedure by tightening the nuts to 30 Nm (22 ft. lbs.). Moving the Brake Master Cylinder assembly forward will suffice instead of removing brake tube fittings. Begin your brake booster vacuum hose/check valve assembly removal by disconnecting it from the component. Begin the replacement by uninstalling the brake pedal position (BPP) switch together with any present speed control deactivator switch. Proceed by disconnecting the brake booster pushrod pin redundant clip then remove the brake booster pushrod self-locking pin together with the outer bushing. Take off the brake booster pushrod from the brake pedal pin and place it to the side. Install the brake booster after removing its four securing nuts then tighten them to 23 Nm (17 ft. lbs.). Conclude the installation by performing the reversal steps of the removal process.