How to Service the PCV Valve on Mercury Grand Marquis?

To service the PCV valve, disconnect the crankcase ventilation tube and electrical connector. A new PCV valve must be installed since the old one's retaining ears will be sheared upon removal. Remove the old valve by rotating it, then install the new valve by reversing the procedure.

How to Service the PCV Valve on Mercury Mariner?

To maintain the Positive Crankcase Ventilation (PCV) valve, begin by removing intake manifold. Next, push the two release tabs to loosen the PCV valve. To install again, do the steps in reverse. Clean and also inspect crankcase oil vent separator gasket and change accordingly.

OEM Mercury PCV Valve

Position Crank Ventilation Valve

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29 PCV Valves found

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Mercury PCV Valve Part Number: F1DZ-6A666-B
$54.59 MSRP: $89.82
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Product Specifications
- Other Name: Valve Assembly - Regulating; Crankcase Vent Valve
Fits the following Mercury Models:
- Cougar | 1994-1997 | XR-7 | 6 Cyl 3.8 L GAS
- Sable | 1991-1995 | GS, LS | 6 Cyl 3.8 L GAS
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Mercury PCV Valve Part Number: 5R3Z-6A666-BA
$144.27 MSRP: $229.09
You Save: $84.82 (38%)
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Product Specifications
- Other Name: Valve Assembly - Crankcase Ventilation; Crankcase Vent Valve
Fits the following Mercury Models:
- Montego | 2005-2006 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Monterey | 2006-2007 | Luxury | 6 Cyl 4.2 L GAS
- Sable | 2004-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury PCV Valve Part Number: 2L5Z-6A666-BA
$24.39 MSRP: $38.73
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Product Specifications
- Other Name: Kit - Crankcase Ventilation Valve; Crankcase Vent Valve
- Manufacturer Note: SOHC
Fits the following Mercury Models:
- Mariner | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Mountaineer | 2001-2003 | Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
- Sable | 2000-2005 | LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L GAS
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Mercury PCV Valve Part Number: 4L5Z-6A666-BA
$17.29 MSRP: $27.45
You Save: $10.16 (38%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Mariner | 2008 | Base, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
- Milan | 2006-2009 | Base, Premier | 4 Cyl 2.3 L GAS
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Mercury PCV Valve Part Number: 1F1Z-6A666-AA
$14.31 MSRP: $22.73
You Save: $8.42 (38%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Mountaineer | 2001 | Base | 6 Cyl 4.0 L GAS
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Mercury PCV Valve Part Number: 2C5Z-6A666-AA
$80.02 MSRP: $131.67
You Save: $51.65 (40%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Manufacturer Note: With Electric Heated PCV
Fits the following Mercury Models:
- Mariner | 2009-2011 | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Milan | 2010-2011 | Premier | 6 Cyl 3.0 L FLEX
- Monterey | 2004 | Base, Premier | 6 Cyl 4.2 L GAS
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury PCV Valve Part Number: 3L8Z-6A666-AD
$102.56 MSRP: $172.18
You Save: $69.62 (41%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Mariner | 2005-2007 | Base, Convenience, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
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Mercury PCV Valve Part Number: 6W7Z-6A666-AA
$66.39 MSRP: $109.24
You Save: $42.85 (40%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Grand Marquis | 2007-2010 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury PCV Valve Part Number: 5L3Z-6A666-BA
$78.77 MSRP: $132.24
You Save: $53.47 (41%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Grand Marquis | 2006 | GS, LS | 8 Cyl 4.6 L GAS
- Milan | 2006-2009 | Base, Premier | 6 Cyl 3.0 L GAS
- Montego | 2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Monterey | 2005 | Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
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Mercury PCV Valve Part Number: F6DZ-6A666-EA
$25.19 MSRP: $40.00
You Save: $14.81 (38%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Replaces: E73Z-6A666-A, F6DZ-6A666-B2A
Fits the following Mercury Models:
- Sable | 1987-2003 | G, GS, LS, LS Premium, LTS | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Topaz | 1992-1994 | GS, LTS, Sport, XR5 | 6 Cyl 3.0 L GAS
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Mercury PCV Valve Part Number: KR3Z-6A666-B
$13.63 MSRP: $21.09
You Save: $7.46 (36%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Replaces: 4L5Z-6A666-AA, EV-267
Fits the following Mercury Models:
- Mariner | 2008 | Base, Premier | 6 Cyl 3.0 L GAS
- Montego | 2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Sable | 2004-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury PCV Valve Part Number: XF5Z-6A666-AA
$6.06 MSRP: $8.39
You Save: $2.33 (28%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Villager | 1999-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
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Mercury PCV Valve Part Number: EOTZ-6A666-A
$14.22 MSRP: $22.00
You Save: $7.78 (36%)
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Cougar | 1988-1993 | LS, XR-7 | 6 Cyl 3.8 L GAS
- Sable | 1988-1990 | GS, LS | 6 Cyl 3.8 L GAS
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Mercury PCV Valve Part Number: F33Z-6A666-A
Product Specifications
- Other Name: Valve Assembly - Regulation; Crankcase Vent Valve; Valve Assembly - Regulating
Fits the following Mercury Models:
- Topaz | 1992-1994 | GS, LS, LTS, Sport | 4 Cyl 2.3 L GAS
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Mercury PCV Valve Part Number: E5ZZ-6A666-A
$14.92 MSRP: $23.09
You Save: $8.17 (36%)
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Topaz | 1984-1985 | Base, GS, LS | 4 Cyl 2.0 L DIESEL, 4 Cyl 2.3 L GAS
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Mercury PCV Valve Part Number: D9ZZ-6A666-A
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
Fits the following Mercury Models:
- Capri | 1984-1986 | RS | 8 Cyl 5.0 L GAS
- Colony Park | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Cougar | 1991-1997, 1984-1988 | Base, LS, XR-7 | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
- Grand Marquis | 1984-2002 | Base, Colony Park, GS, LS | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
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Mercury PCV Valve Part Number: E7TZ-6A666-A
Product Specifications
- Other Name: Valve Assembly - Regulating; Crankcase Vent Valve
- Manufacturer Note: *EV-140
Fits the following Mercury Models:
- Mountaineer | 1997-2001 | Base | 8 Cyl 5.0 L GAS
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Mercury PCV Valve Part Number: 3F2Z-6A666-AA
Product Specifications
- Other Name: Valve Assembly - Crankcase Ventilation; Crankcase Vent Valve
Fits the following Mercury Models:
- Mountaineer | 2006-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury PCV Valve Part Number: E92Z6A666A
Product Specifications
- Other Name: Shield - Fuel Tubes; Crankcase Vent Valve
Fits the following Mercury Models:
- Capri | 1991-1994 | Base, XR2 | 4 Cyl 1.6 L GAS
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Mercury PCV Valve Part Number: E7GZ6A666A
Product Specifications
- Other Name: Shield - Fuel Tubes; Crankcase Vent Valve
Fits the following Mercury Models:
- Tracer | 1988-1989 | Base | 4 Cyl 1.6 L GAS

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1-20 of 29 Results

Mercury PCV Valve Parts and Q&A

PCV Valve
2L3Z-6A666-AA
Q: How to Service the PCV Valve on Mercury Grand Marquis?
A: To service the PCV valve, disconnect the crankcase ventilation tube and electrical connector. A new PCV valve must be installed since the old one's retaining ears will be sheared upon removal. Remove the old valve by rotating it, then install the new valve by reversing the procedure.
PCV Valve
4L5Z-6A666-BA
Q: How to Service the PCV Valve on Mercury Mariner?
A: To maintain the Positive Crankcase Ventilation (PCV) valve, begin by removing intake manifold. Next, push the two release tabs to loosen the PCV valve. To install again, do the steps in reverse. Clean and also inspect crankcase oil vent separator gasket and change accordingly.