How to regularly inspect PCV hoses and other plastic, rubber, and metal pipes on Mercury Mariner?

Due to the high temperatures under the hood that can lead to deterioration, it is important to regularly check hoses in the engine, accessory and emission systems of your car. Look out for cracks, loose clamps, material hardening and leaks in hoses. Ensure that the hoses are secured using clamps and maintain tension so as to avoid any leaks. Inspect hoses without clamps at fitting points where they may expand or harden causing leaks. Check the PCV system hose for any damage such as cracks or leaks. If clogged check for obstruction and clean with solvent. Vacuum hoses should be replaced with those made from similar materials. Label them properly for reinstallation purposes if you take them off again. Plastic T-fittings should be checked for cracks and hose distortion using small pieces of vacuum hoses as stethoscope if necessary. Use a small piece of vacuum hose as a stethoscope to detect leaks. Examine flexible fuel lines that may be deteriorated, chafed or cracked before using a hose intended for your fuel injection system.

Genuine Mercury Mariner PCV Hose

PCV Valve Hose

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13 PCV Hoses found

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Mercury Mariner Vent Hose
Part Number: 4L8Z-6A664-CA
$32.49 MSRP: $47.50
You Save: $15.01 (32%)
ADD TO CART
Product Specifications
- Other Name: Hose - Vent
- Replaces: 4L8Z-6A664-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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Mercury Mariner Vent Hose
Part Number: 9L8Z-6A664-A
$23.37 MSRP: $34.17
You Save: $10.80 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Tube Assembly
Part Number: 3S4Z-6758-AA
$28.52 MSRP: $41.33
You Save: $12.81 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tube Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Vent Hose
Part Number: 8L8Z-6A664-A
$30.78 MSRP: $45.00
You Save: $14.22 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose - Vent
- Replaces: 4L8Z-6A664-BA, KCV-155
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.5L Duratec (110kW/150PS) | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Vent Hose
Part Number: 4L8Z-6A664-BA
$30.78 MSRP: $45.00
You Save: $14.22 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose - Vent
- Replaced by: 8L8Z-6A664-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 4 Cyl 2.3L | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Vent Hose
Part Number: 6L8Z-6A664-A
$19.89 MSRP: $28.33
You Save: $8.44 (30%)
Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2008 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Tube Assembly
Part Number: 4L8Z-6758-BA
Product Specifications
- Other Name: Tube Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Pvc Ventilation Tube Hose
Part Number: 9L8Z-6758-A
$18.72 MSRP: $26.67
You Save: $7.95 (30%)
Product Specifications
- Other Name: Tube Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Pcv Vent Hose
Part Number: 5M6Z-6A664-AA
Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Tube Assembly
Part Number: 6L8Z-6758-A
Product Specifications
- Other Name: Tube Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Tube Assembly
Part Number: 8L8Z-6758-A
Product Specifications
- Other Name: Tube Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008 Mercury Mariner | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Vent Hose
Part Number: 8M6Z-6A664-A
Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2009 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Mercury Mariner Vent Hose
Part Number: 9M6Z-6A664-A
Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | 4 Cyl 2.5L PFI Gas/Electric | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive

Mercury Mariner PCV Hose

We provide a wide range of Mercury Mariner PCV Hose at the best prices possible. If you need Mercury Mariner PCV Hose, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Mariner PCV Hose Parts Questions & Experts Answers

Tube Assembly
4L8Z-6758-BA
Q: How to regularly inspect PCV hoses and other plastic, rubber, and metal pipes on Mercury Mariner?
A: Due to the high temperatures under the hood that can lead to deterioration, it is important to regularly check hoses in the engine, accessory and emission systems of your car. Look out for cracks, loose clamps, material hardening and leaks in hoses. Ensure that the hoses are secured using clamps and maintain tension so as to avoid any leaks. Inspect hoses without clamps at fitting points where they may expand or harden causing leaks. Check the PCV system hose for any damage such as cracks or leaks. If clogged check for obstruction and clean with solvent. Vacuum hoses should be replaced with those made from similar materials. Label them properly for reinstallation purposes if you take them off again. Plastic T-fittings should be checked for cracks and hose distortion using small pieces of vacuum hoses as stethoscope if necessary. Use a small piece of vacuum hose as a stethoscope to detect leaks. Examine flexible fuel lines that may be deteriorated, chafed or cracked before using a hose intended for your fuel injection system.

Related Mercury Mariner Parts

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2011 PCV Hose 2010 PCV Hose 2009 PCV Hose 2008 PCV Hose 2007 PCV Hose 2006 PCV Hose 2005 PCV Hose