How to Service the PCV Valve on Mercury Grand Marquis?

In order to service the PCV valve, de-connect the crankcase ventilating tube and electrical connector. When the old PCV valve has been removed by pulling its retaining ears, a new PCV must be fitted because the old ears have been sheared. Take away the old valve by turning it, and fit in the new one by the same method.

OEM Mercury Grand Marquis PCV Valve

Position Crank Ventilation Valve

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6 PCV Valves found

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Mercury Grand Marquis PCV Valve Part Number: 7L3Z-6A666-A
$21.49 MSRP: $34.13
You Save: $12.64 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Manufacturer Note: Valve Only
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis PCV Valve Part Number: 2X4Z-6A666-AA
$8.64 MSRP: $13.73
You Save: $5.09 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- 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 PCV Valve Part Number: 2L3Z-6A666-AA
$17.87 MSRP: $28.38
You Save: $10.51 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Replaces: 2L3Z-6A666-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2006 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis PCV Valve Part Number: 6W7Z-6A666-AA
$66.39 MSRP: $109.24
You Save: $42.85 (40%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis PCV Valve Part Number: 5L3Z-6A666-BA
$78.77 MSRP: $132.24
You Save: $53.47 (41%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis PCV Valve Part Number: D9ZZ-6A666-A
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-2002 Mercury Grand Marquis | Base, Colony Park, GS, LS | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS

Mercury Grand Marquis PCV Valve

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Mercury Grand Marquis PCV Valve Parts and Q&A

PCV Valve
6W7Z-6A666-AA
Q: How to Service the PCV Valve on Mercury Grand Marquis?
A: In order to service the PCV valve, de-connect the crankcase ventilating tube and electrical connector. When the old PCV valve has been removed by pulling its retaining ears, a new PCV must be fitted because the old ears have been sheared. Take away the old valve by turning it, and fit in the new one by the same method.