How to measure the diameter of each intake valve and exhaust valve stem for servicing and repair on Mercury Mariner?

In order to maintain and repair the valve, check the diameter of each intake and exhaust valve stem at the specified points and ensure that the diameter satisfies the required criteria.

How should the Exhaust Valve and Intake Valve be inspected for signs of damage and wear on Mercury Mariner?

Inspect the stem to identify the presence of grooves/scoring, examine the valve face and edge to identify pits/grooves/scores, examine the valve head to determine burning, erosion, warpage and cracking and assess the valve margin to identify wear.

OEM Mercury Mariner Exhaust Valve

Exhaust Muffler Valve

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3 Exhaust Valves found

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Mercury Mariner Exhaust Valve Part Number: 9S4Z-6505-A
$15.87 MSRP: $23.10
You Save: $7.23 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve - Exhaust
- Manufacturer Note: Ø 30MM
- Replaces: 1S7Z-6505-AA, 1S7Z-6505-A, 3S4Z-6505-AA, 9E5Z-6505-A, 8E5Z-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Mariner | Base, Convenience, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Mariner Exhaust Valve Part Number: 7L8Z-6505-A
$27.58 MSRP: $40.15
You Save: $12.57 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve - Exhaust
- Replaces: F6DZ-6505-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | Base, Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Exhaust Valve Part Number: AL8Z-6505-A
$15.90 MSRP: $21.64
You Save: $5.74 (27%)
ADD TO CART
Product Specifications
- Other Name: Valve - Exhaust
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS

Mercury Mariner Exhaust Valve

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Mercury Mariner Exhaust Valve Parts and Q&A

Exhaust Valve
7L8Z-6505-A
Q: How to measure the diameter of each intake valve and exhaust valve stem for servicing and repair on Mercury Mariner?
A: In order to maintain and repair the valve, check the diameter of each intake and exhaust valve stem at the specified points and ensure that the diameter satisfies the required criteria.
Exhaust Valve
9S4Z-6505-A
Q: How should the Exhaust Valve and Intake Valve be inspected for signs of damage and wear on Mercury Mariner?
A: Inspect the stem to identify the presence of grooves/scoring, examine the valve face and edge to identify pits/grooves/scores, examine the valve head to determine burning, erosion, warpage and cracking and assess the valve margin to identify wear.