How to Service the PCV Valve on Mercury Mariner?

Service of the Positive Crankcase Ventilation (PCV) valve starts by removing the intake manifold first. Press the two release tabs of the PCV valve to remove it. When installing the PCV valve follow the reversal of removal steps. Inspection and cleaning of the crankcase oil vent separator gasket must be performed before replacing it with a new gasket if needed.

How to Ensure Proper Functioning of the PCV Valve in a Mercury Marauder?

The maintenance process of PCV (Positive Crankcase Ventilation) valve starts by removing the resonator. First detach the PCV valve from the grommet before removing it from both the crankcase vent connector and hose. Instruct to perform installation by following the opposite steps of removal.

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
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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
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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
$104.64 MSRP: $172.18
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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
$80.37 MSRP: $132.24
You Save: $51.87 (40%)
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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
$13.07 MSRP: $21.09
You Save: $8.02 (39%)
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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
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

If you own Mercury and want to keep it in top shape, choosing OEM PCV Valve is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Mercury PCV Valve at some of the affordable online prices without cutting quality. Every OEM Mercury part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Mercury PCV Valve empties crankcase gases soon and engines are clean and emissions trimmed. In 1938 Mercury adopted its god-driven badge and went in search of a pure identity based on comfort and style. It created mid-sized vehicles with gentler suspensions to absorb bumps and cabins to stop road roar, which was shown not to be required to kill the drive spirit. Customers preferred direct steering, comfortable seats as well as an appearance that did not resemble the larger parent models, which gave the marque a recognizable, clean-cut attitude. Over the decades, Mercury continued to enhance the ride quality by incorporating more muted material and features that made lengthy trips relaxing on typical streets and highways. Despite the changing trends, Mercury maintained a price-to-upscale feel that families do not have to stretch their paychecks in order to board the train. That name has remained until 2011, but to those with memory Mercury remains an honest value and easy sailing. The PCV Valve is located beneath the intake vacuum and it pulls half-burned crankcase gases into combustion chambers to burn completely rather than gumming oil. When the engine is idling the PCV Valve closes to maintain the ratios of air but opens wide at high revs to ensure the blow-by is cleared quickly. This loop stops sludge, fuel wastage, and cut fumes before they enter the tailpipe. Uncontrolled such gases would cause oil to become opaque and increase pressure, but the PCV Valve maintains a small crankcase vacuum, which shields seals, safeguards bearings, and allows the engine to breathe freely. Checking the PCV Valve would take very little time but would avoid larger bills like dirty oil and increased fuel thirst.

Mercury PCV Valve Parts and Q&A

PCV Valve
4L5Z-6A666-BA
Q: How to Service the PCV Valve on Mercury Mariner?
A:
Service of the Positive Crankcase Ventilation (PCV) valve starts by removing the intake manifold first. Press the two release tabs of the PCV valve to remove it. When installing the PCV valve follow the reversal of removal steps. Inspection and cleaning of the crankcase oil vent separator gasket must be performed before replacing it with a new gasket if needed.
PCV Valve
2X4Z-6A666-AA
Q: How to Ensure Proper Functioning of the PCV Valve in a Mercury Marauder?
A:
The maintenance process of PCV (Positive Crankcase Ventilation) valve starts by removing the resonator. First detach the PCV valve from the grommet before removing it from both the crankcase vent connector and hose. Instruct to perform installation by following the opposite steps of removal.