How to Service and Repair Valve Stem Seals on Mercury Grand Marquis?

In order to service the valve guide seals, turn off the fire suppression system. Lift the vehicle with a hoist, detach the valve springs and the seals. Install new seals so that they sit properly. Take out the springs and restart the fire suppression system taking precautions.

OEM Mercury Grand Marquis Valve Stem Seal

Engine Valve Seal

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5 Valve Stem Seals found

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Mercury Grand Marquis Valve Seals Part Number: DC2Z-6571-A
$2.27 MSRP: $3.22
You Save: $0.95 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
- Replaces: F6AZ-6571-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1994-2006 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Valve Seals Part Number: F5LY-6571-A
$2.48 MSRP: $3.51
You Save: $1.03 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | GS, LS, LSE | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Valve Seals Part Number: F4AZ-6571-A
$7.27 MSRP: $10.31
You Save: $3.04 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
- Replaces: F3AZ-6049-A, F4AZ-6049-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2011 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Valve Seals Part Number: E8AZ-6571-A
$13.78 MSRP: $18.75
You Save: $4.97 (27%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal; Intake Valve Seals; Intake Valve Stem Seal
- Replaces: E43Z-6571-A, FOTZ-6049-K, F1HZ-6049-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1991 Mercury Grand Marquis | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS
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Mercury Grand Marquis Valve Seals Part Number: F1AZ-6571-A
Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
- Manufacturer Note: Intake & Exhaust
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-1993 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS

Mercury Grand Marquis Valve Stem Seal

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Mercury Grand Marquis Valve Stem Seal Parts and Q&A

Valve Seals
F4AZ-6571-A
Q: How to Service and Repair Valve Stem Seals on Mercury Grand Marquis?
A: In order to service the valve guide seals, turn off the fire suppression system. Lift the vehicle with a hoist, detach the valve springs and the seals. Install new seals so that they sit properly. Take out the springs and restart the fire suppression system taking precautions.