How to service and repair the vacuum brake booster on 2004 Mercury Grand Marquis?

Being safe, to service the vacuum brake booster, disconnect the battery ground cable. Disassemble the level sensor connector of fluid level, speed control cable, the check valve, and brake master cylinder. Unscrew the instrument panel and the stoplight switch, and unscrew the brake booster. Installation is to be reinstalled by following the procedure in reverse.

OEM 2004 Mercury Grand Marquis Brake Booster

Brake Power Booster

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2 Brake Boosters found

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2004 Mercury Grand Marquis Brake Booster Part Number: 7W7Z-2005-A
$307.41 MSRP: $425.27
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster
- Replaces: 6W7Z-2005-AA
- Base No.: 2005
- Item Weight: 10.50 Pounds
- Item Dimensions: 17.3 x 12.8 x 12.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7W7Z-2005-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2004 Mercury Grand Marquis Submodels:
- GS, GSL, Limited Edition, LS, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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2004 Mercury Grand Marquis Brake Booster Part Number: 3W1Z-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Power Booster
- Base No.: 2005
- Item Weight: 10.50 Pounds
- Item Dimensions: 10.1 x 10.5 x 12.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 3W1Z-2005-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Mercury Grand Marquis Submodels:
- GS, LS, LSE | 8 Cyl 4.6 L GAS

2004 Mercury Grand Marquis Brake Booster

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2004 Mercury Grand Marquis Brake Booster available at FordPartsDeal.com. You can confidently purchase our OEM 2004 Mercury Grand Marquis Brake Booster as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2004 Mercury Grand Marquis Brake Booster Parts Q&A

Q: How to service and repair the vacuum brake booster on 2004 Mercury Grand Marquis?
A: Being safe, to service the vacuum brake booster, disconnect the battery ground cable. Disassemble the level sensor connector of fluid level, speed control cable, the check valve, and brake master cylinder. Unscrew the instrument panel and the stoplight switch, and unscrew the brake booster. Installation is to be reinstalled by following the procedure in reverse.