How to Service and Repair Valve Stem Seals on Mercury Mountaineer?

When servicing and repairing valve guide seals, it is necessary to start with the valve springs first. When the springs have been disconnected, take away the seals of the valve stems. Installation To install new valve stem seals, lubricate with clean engine oil and install with Valve Stem Seal Installer. And lastly get the valve springs going again.

OEM Mercury Mountaineer Valve Stem Seal

Engine Valve Seal

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4 Valve Stem Seals found

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Mercury Mountaineer 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:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Valve Seals Part Number: F77Z-6571-AB
$3.40 MSRP: $4.81
You Save: $1.41 (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
- Manufacturer Note: SOHC
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Mountaineer Valve Seals Part Number: 3L3Z-6571-DA
$5.19 MSRP: $7.37
You Save: $2.18 (30%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
- Manufacturer Note: SEAL, VALVE STEM
- Replaces: 3L3Z-6571-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2010 Mercury Mountaineer | Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Valve Seals Part Number: F3ZZ-6571-C
$2.04 MSRP: $2.89
You Save: $0.85 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal; Exhaust Valve Seals; Intake Valve Seals; Intake Valve Stem Seal
- Manufacturer Note: Used on Intake & Exhaust valves
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2001 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS

Mercury Mountaineer Valve Stem Seal

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Mercury Mountaineer Valve Stem Seal Parts and Q&A

Valve Seals
3L3Z-6571-DA
Q: How to Service and Repair Valve Stem Seals on Mercury Mountaineer?
A: When servicing and repairing valve guide seals, it is necessary to start with the valve springs first. When the springs have been disconnected, take away the seals of the valve stems. Installation To install new valve stem seals, lubricate with clean engine oil and install with Valve Stem Seal Installer. And lastly get the valve springs going again.