What is the location and function of the orifice tube and A/C Expansion Valve in the air conditioning system on Mercury Mariner?

The orifice tube, located in the condenser to evaporator line, changes high pressure liquid refrigerant into low pressure. Before working on the air conditioning system, have it discharged by a professional. For 2007 and earlier models, disconnect the refrigerant line from the condenser to the evaporator, remove the protective cover, release the coupler with a special tool, and use pliers to remove the orifice tube. Discard old O-rings when installing a new tube. For 2008 and later models, remove the expansion valve by detaching the nut from the refrigerant line fittings, removing the block and lines, and discarding the seals. Remove the expansion valve and discard the O-rings. Replace seals and O-rings when reinstalling, and have the system evacuated, recharged, and tested by a professional.

Genuine Mercury Mariner A/C Expansion Valve

Air Conditioning Expansion Valve

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6 A/C Expansion Valves found

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Mercury Mariner Valve Assy - Evaporator Expansion
Part Number: 6M6Z-19849-AA
$19.13 MSRP: $38.00
You Save: $18.87 (50%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Expansion Valve
- Replaces: 5M6Z-19849-AA, YG-391
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 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 Valve Assy - Evaporator Expansion
Part Number: AL8Z-19849-A
$36.25 MSRP: $57.82
You Save: $21.57 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Expansion Valve
- Replaces: 8L8Z-19849-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 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 Valve Assy - Evaporator Expansion
Part Number: 5M6Z-19849-AA
$19.13 MSRP: $38.00
You Save: $18.87 (50%)
ADD TO CART
Product Specifications
- Replaced by: 6M6Z-19849-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L Hybrid Gas/Electric DOHC | 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 Valve Assy - Evaporator Expansion
Part Number: 8L8Z-19849-A
$36.25 MSRP: $57.82
You Save: $21.57 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: AL8Z-19849-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2009 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 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 Valve Assy - Evaporator Expansion
Part Number: 8M6Z-19849-A
Product Specifications
- Replaced by: 9M6Z-19849-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2009 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 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 Valve Assembly - Evaporator Expansion
Part Number: 9M6Z-19849-A
Product Specifications
- Other Name: Expansion Valve
- Replaces: 8M6Z-19849-A, YG-407
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2009 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 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

Mercury Mariner A/C Expansion Valve

A/C Expansion Valve in Mercury Mariner vehicles is really important in controlling the flow of refrigerant in the air conditioning system to achieve the premier possible performance. Through the regulation of this flow, the A/C Expansion Valve plays a part and adds much to the aspects of efficiency and operations of the A/C system. There are different types of the Mercury Mariner car and therefore different types of A/C Expansion Valves may be used in different models of this car depending on the working conditions required. Such variations can be concerning the design and the mechanism of the valve and which will result to a difference in the way the valve will respond and control the refrigerant flow. In conclusion, the A/C Expansion Valve plays a crucial role in deciding the internal climate that one gets in the car, and helps optimize the condition of the air conditioning system of the vehicle.

We provide a wide range of Mercury Mariner A/C Expansion Valve at the best prices possible. If you need Mercury Mariner A/C Expansion Valve, 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 A/C Expansion Valve Parts Questions & Experts Answers

Valve Assy - Evaporator Expansion
AL8Z-19849-A
Q: What is the location and function of the orifice tube and A/C Expansion Valve in the air conditioning system on Mercury Mariner?
A: The orifice tube, located in the condenser to evaporator line, changes high pressure liquid refrigerant into low pressure. Before working on the air conditioning system, have it discharged by a professional. For 2007 and earlier models, disconnect the refrigerant line from the condenser to the evaporator, remove the protective cover, release the coupler with a special tool, and use pliers to remove the orifice tube. Discard old O-rings when installing a new tube. For 2008 and later models, remove the expansion valve by detaching the nut from the refrigerant line fittings, removing the block and lines, and discarding the seals. Remove the expansion valve and discard the O-rings. Replace seals and O-rings when reinstalling, and have the system evacuated, recharged, and tested by a professional.