OEM Air Conditioning Components

There are five main components in an automotive air conditioning system - an evaporator, accumulator, compressor, condenser, and expansion valve. As your car interior is being cooled by your A/C system, here's what's happening:

  1. It starts with your vehicle's AC Compressor, which compresses refrigerant so it can readily "give up" heat.
  2. The highly pressurized refrigerant gives up heat in the AC Condenser, which discharges heat from the fluid into the air outside your vehicle.
  3. The cooler refrigerant enters the AC Accumulator, which "dries" the refrigerant and removes any bit of moisture in the coolant. Moisture is bad for your vehicle's AC system, as it can destroy a compressor in short order.
  4. The refrigerant next enters the expansion valve, where it is allowed to depressurize even more. As the refrigerant depressurizes, it becomes significantly colder.
  5. The much colder refrigerant now enters the AC Evaporator, where warm interior air is blown across the evaporator coil and cooled.
  6. Finally, the refrigerant circulates back to the AC compressor where the cycle begins again.

How To Save Money on AC Repairs

First, it's a good idea to use your vehicle's AC system on a regular basis. If you turn on your AC once a month - and let it run for at least 10 minutes - it will operate reliably for a long time.

Second, it's a good idea to shut off your AC system a few minutes before you shut off your vehicle. This helps remove moisture from the system, preventing both damage and also the growth of mold, fungus, and bacteria, which can cause your AC system to smell bad.

Finally, if you have to buy a replacement AC part, consider remanufactured parts. Remanufactured AC compressors, for example, can save you 10-20% over a new part while delivering identical performance.

Expansion Valve
F1FZ-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Focus Electric. With dual zone ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Focus
$65.53
$43.97
$65.53
$43.97
Expansion Valve
AV1Z-19849-B
Other Names: Valve Assembly - Evaporator Expansion More
Description: Fiesta. More
Fits:
  • Ford:
    • Fiesta
$53.47
$35.88
$53.47
$35.88
Expansion Valve
DV6Z-19849-B
Other Names: Valve Assembly - Evaporator Expansion More
Description: Transit Connect van. To 1/27/14. With rear ac. More
Fits:
  • Ford:
    • Transit Connect
$111.36
$74.73
$111.36
$74.73
Expansion Valve
DR3Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Mustang. Without dual zone ac. More
Fits:
  • Ford:
    • Mustang
$429.04
$287.88
$429.04
$287.88
Expansion Valve
BB5Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Explorer. Taurus. Flex. MKS. MKT. With dual zone ac. With auto temp control. More
Notes: Included With Evaporator Assembly. Included With AC & Heater Assenbly. More
Fits:
  • Ford:
    • Explorer,
    • Flex,
    • Taurus
  • Lincoln:
    • MKS,
    • MKT
$36.71
$24.63
$36.71
$24.63
Expansion Valve
AL8Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Escape, Mariner. With dual ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Escape
  • Mercury:
    • Mariner
$163.53
$109.73
$163.53
$109.73
Expansion Valve
6E5Z-19849-AA
Other Names: Valve Assembly - Evaporator Expansion More
Description: Fusion, Milan. Zephyr. MKZ. 2006-09. With auto ac. More
Fits:
  • Ford:
    • Fusion
  • Lincoln:
    • MKZ,
    • Zephyr
  • Mercury:
    • Milan
$123.64
$82.96
$123.64
$82.96
Expansion Valve
F4XY-19849-A
Positions: Rear
Other Names: Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. Rear unit. More
Fits:
  • Ford:
    • Expedition,
    • Windstar
  • Lincoln:
    • Navigator
  • Mercury:
    • Villager
$183.49
$123.12
$183.49
$123.12
Expansion Valve
DV6Z-19849-E
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: DV6Z-19849-A, YG-754-
Description: Transit Connect van. Without rear ac. More
Fits:
  • Ford:
    • Transit Connect
$109.85
$73.71
$109.85
$73.71
Expansion Valve
DG9Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Continental. Fusion. Edge. MKX. MKZ. Without dual zone. Without 2.7L turbo. More
Notes: Included With Evaporator Assembly. Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • Edge,
    • Fusion
  • Lincoln:
    • Continental,
    • MKX,
    • MKZ
$50.42
$33.83
$50.42
$33.83
Expansion Valve
AV1Z-19849-C
Other Names: Valve Assembly - Evaporator Expansion More
Description: 2014-17, without auto ac. More
Notes: Included With Evaporator Core. More
Fits:
  • Ford:
    • Fiesta
$73.75
$49.48
$73.75
$49.48
Expansion Valve
DG1Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Police Interceptor Sedan. Explorer. Taurus. Flex. MKT. MKS. With dual zone ac. Without auto temp control. Special service police sdn. More
Notes: Included With AC & Heater Assenbly. Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Explorer,
    • Flex,
    • Police Interceptor Sedan,
    • Police Interceptor Utility,
    • Special Service Police Sedan,
    • Taurus
  • Lincoln:
    • MKS,
    • MKT
  • 3 more
$45.98
$30.85
$45.98
$30.85
Expansion Valve
AV6Z-19849-D
Other Names: Valve Assembly - Evaporator Expansion More
Description: Escape. MKC. With dual zone ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Escape
  • Lincoln:
    • MKC
$59.71
$40.06
$59.71
$40.06
Expansion Valve
BC3Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: With dual zone ac. F250, f350 super duty. More
Notes: Included With Evaporator Core. More
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty
$58.07
$38.97
$58.07
$38.97
Expansion Valve
9L1Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. More
Fits:
  • Ford:
    • Expedition
  • Lincoln:
    • Navigator
$154.47
$103.65
$154.47
$103.65
Expansion Valve
9L3Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: F150. 2009-17. With dual zone auto ac. More
Notes: Included With Housing Assembly. Included With Evaporator Assembly. Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • F-150
  • Lincoln:
    • Navigator
$140.18
$94.06
$140.18
$94.06
Expansion Valve
8G1Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Five Hundred, Montego. Taurus, Sable. Freestyle. Taurus X. Flex. MKT. MKS. 2009. Manual ac. With auto ac. With dual zone ac. With high... More
Notes: Included With Evaporator Core. Included With AC & Heater Assenbly. Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Five Hundred,
    • Flex,
    • Freestyle,
    • Taurus,
    • Taurus X
  • Lincoln:
    • MKS,
    • MKT
  • Mercury:
    • Montego,
    • Sable
  • 4 more
$53.27
$35.75
$53.27
$35.75
Expansion Valve
7L1Z-19849-C
Other Names: Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. 2007-08. More
Notes: Included With AC Line. More
Fits:
  • Ford:
    • Expedition
  • Lincoln:
    • Navigator
$32.27
$21.66
$32.27
$21.66
Expansion Valve
GV6Z-19849-AA
Other Names: Valve Assembly - Evaporator Expansion More
Description: With dual zone ac, r134a. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Escape
  • Lincoln:
    • MKC
$51.22
$34.37
$51.22
$34.37
Expansion Valve
HL3Z-19849-D
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: FL3Z-19849-A, YG-789-
Description: F150. F250, f350, f450. With dual zone ac. More
Fits:
  • Ford:
    • F-150,
    • F-250 Super Duty,
    • F-350 Super Duty
$29.53
$19.81
$29.53
$19.81
Expansion Valve
BK3Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Transit. More
Notes: Included With AC Assembly. More
Fits:
  • Ford:
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
$47.78
$32.06
$47.78
$32.06
Expansion Valve
CK4Z-19849-C
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: BK2Z-19849-A, YG-786-
Description: Transit. 3.2l diesel. More
Notes: Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
$34.76
$23.33
$34.76
$23.33
Expansion Valve
FR3Z-19849-F
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: FR3Z-19849-A, FR3Z-19849-D, YG-783-, YG-807-
Description: Mustang. 5.0l. 3.7l. 3.7, 5.0, 5.2L. More
Fits:
  • Ford:
    • Mustang
$30.40
$20.40
$30.40
$20.40
Expansion Valve
DV6Z-19849-C
Other Names: Valve Assembly - Evaporator Expansion More
Description: Transit Connect van. From 1/27/14. With rear ac. More
Fits:
  • Ford:
    • Transit Connect
$104.44
$70.08
$104.44
$70.08
Expansion Valve
BB5Z-19849-B
Other Names: Valve Assembly - Evaporator Expansion More
Description: Explorer. Flex. MKT. 2010-17. Police interceptor. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Explorer,
    • Flex,
    • Police Interceptor Utility
  • Lincoln:
    • MKT
$37.31
$25.03
$37.31
$25.03
Expansion Valve
9M6Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: 8M6Z-19849-A, YG-407-
Description: High voltage battery cooler, 2008-09. More
Notes: Included With AC Assembly. More
Fits:
  • Ford:
    • Escape
  • Mercury:
    • Mariner
$55.45
$37.21
$55.45
$37.21
Expansion Valve
6M6Z-19849-AA
Other Names: Valve Assembly - Evaporator Expansion More
Notes: Included With AC Assembly. More
Fits:
  • Ford:
    • Escape
  • Mercury:
    • Mariner
$57.78
$38.77
$57.78
$38.77
Expansion Valve
XW4Z-19849-AA
Other Names: Valve Assembly - Evaporator Expansion More
Description: Thunderbird. Ls6, ls8. 2002. 2000-03. 2004-06. 2003-05. More
Notes: Included With Housing Assy. More
Fits:
  • Ford:
    • Thunderbird
  • Lincoln:
    • LS
$95.05
$63.78
$95.05
$63.78
Expansion Valve
YC3Z-19849-AA
Other Names: Valve Assembly - Evaporator Expansion More
Description: Excursion. More
Notes: Included With Housing Assembly. More
Fits:
  • Ford:
    • Excursion
$65.29
$43.81
$65.29
$43.81
Expansion Valve
FR3Z-19849-E
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: FR3Z-19849-B, FR3Z-19849-C, YG-784-, YG-806-
Description: Mustang. 2.3L. More
Fits:
  • Ford:
    • Mustang
$34.55
$23.18
$34.55
$23.18
Expansion Valve
CK4Z-19849-B
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: CK4Z-19849-A, YG-787-
Description: 3.5l. Transit. 3.5, 3.7L. More
Notes: Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
$34.47
$23.13
$34.47
$23.13
Expansion Valve
BV6Z-19849-B
Other Names: Valve Assembly - Evaporator Expansion More
Replaces: BV6Z-19849-A, YG-440-
Description: C-Max. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • C-Max
$56.69
$38.04
$56.69
$38.04
Expansion Valve
CV6Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Focus Electric. Without dual zone ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Focus
$59.40
$39.86
$59.40
$39.86
Expansion Valve
CT4Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Edge, MKX. With dual zone, with humidity sensor. More
Notes: Included With Evaporator Assembly. Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • Edge
  • Lincoln:
    • MKX
$44.40
$29.79
$44.40
$29.79
Expansion Valve
BE8Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Fiesta. 2011-13. More
Notes: Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • Fiesta
$49.05
$32.92
$49.05
$32.92
Expansion Valve
AE9Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Flex. MKT. 2010-17. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Flex
  • Lincoln:
    • MKT
$72.58
$48.70
$72.58
$48.70
Expansion Valve
7T4Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Edge, MKX. With dual zone, without humidity sensor. More
Notes: Included With Evaporator Assembly. Included With AC & Heater Assembly. More
Fits:
  • Ford:
    • Edge
  • Lincoln:
    • MKX
$77.25
$51.84
$77.25
$51.84
Expansion Valve
AE5Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Fusion, Milan, MKZ. Fusion Hybrid. Milan Hybrid. MKZ Hybrid. 2010-12. Without dual ac. More
Fits:
  • Ford:
    • Fusion
  • Lincoln:
    • MKZ
  • Mercury:
    • Milan
$63.69
$42.74
$63.69
$42.74
Expansion Valve
8S4Z-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: Focus. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Focus
$57.75
$38.75
$57.75
$38.75
Expansion Valve
5F9Z-19849-BB
Other Names: Valve Assembly - Evaporator Expansion More
Description: Freestyle. Taurus X. More
Fits:
  • Ford:
    • Freestyle,
    • Taurus X
$59.53
$39.94
$59.53
$39.94
Expansion Valve
F4UZ-19849-A
Other Names: Valve Assembly - Evaporator Expansion More
Description: E150-350 vans. More
Fits:
  • Ford:
    • E-150,
    • E-150 Club Wagon,
    • E-150 Econoline,
    • E-150 Econoline Club Wagon,
    • E-250,
    • E-250 Econoline,
    • E-350 Club Wagon,
    • E-350 Econoline,
    • E-350 Econoline Club Wagon,
    • E-350 Super Duty,
    • Windstar
  • 6 more
$65.29
$43.81
$65.29
$43.81
Expansion Valve
7L1Z-19849-B
Other Names: Control Valve, Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. Standard wheelbase. With 119 wheelbase. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Expedition
  • Lincoln:
    • Navigator
$219.04
$146.97
$219.04
$146.97
Expansion Valve
2L1Z-19849-AB
Other Names: Control Valve, Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. To 3/14/04. More
Fits:
  • Ford:
    • Expedition
  • Lincoln:
    • Navigator
$183.49
$123.12
$183.49
$123.12
Expansion Valve
5L1Z-19849-BA
Other Names: Control Valve, Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. From 3/14/04. More
Fits:
  • Ford:
    • Expedition
  • Lincoln:
    • Navigator
$53.16
$35.67
$53.16
$35.67
Expansion Valve
7L1Z-19849-A
Other Names: Control Valve, Valve Assembly - Evaporator Expansion More
Description: Expedition, Navigator. Extended wheelbase. With 131 wheelbase. More
Notes: Included With Housing. More
Fits:
  • Ford:
    • Expedition
  • Lincoln:
    • Navigator
$98.16
$65.87
$98.16
$65.87
Evaporator Core
8A8Z-19860-A
Other Names: Expansion Valve, Core - Air Conditioning Evapor More
Description: Flex. 2009. More
Fits:
  • Ford:
    • Flex
$231.04
$155.03
$231.04
$155.03
Expansion Valve Bracket
CV6Z-18A457-A
Other Names: Evaporator Assembly Bracket, Evaporator Assembly Support, Bracket More
Description: Without dual zone ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • C-Max,
    • Escape,
    • Focus,
    • Transit Connect
  • Lincoln:
    • MKC
$1.82
$1.33
$1.82
$1.33
Evaporator Assembly Gasket
BV6Z-19B588-A
Other Names: Expansion Valve Gasket, Evaporator Assembly Seal, Gasket More
Description: Without dual zone ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • C-Max,
    • Escape,
    • Focus,
    • Transit Connect
  • Lincoln:
    • MKC
$23.60
$17.28
$23.60
$17.28
Evaporator Assembly Gasket
CV6Z-19B588-A
Other Names: Expansion Valve Gasket, Evaporator Assembly Seal, Gasket More
Description: Without dual zone ac. More
Notes: Included With Evaporator Assembly. More
Fits:
  • Ford:
    • Escape,
    • Focus
  • Lincoln:
    • MKC
$23.87
$17.47
$23.87
$17.47
Stud
-W701890-S439
Positions: Upper, Lower
Other Names: Compressor Assembly Stud, Relief Valve Stud, Side Seal Mount Stud, Condenser Stud, Evaporator Tube Stud, Compressor Stud, AC Tube... More
Description: 2.3L. 1.5L. 4.6L. 5.8L. 5.4L. 2015-2016. 3.5, 3.7L. 2.0L, 2017. 3.0L, 2008. 2.0L, upper. 3.5L, upper. 3.7L, m8x12.5. 2013-17, 3.7L. 3.5L,... More
Notes: Included With Evaporator Tube. Included With Compressor Assembly. Included With Upper Pressure Tube. Included With Dehydrator Assembly.... More
Fits:
  • Ford:
    • Edge,
    • Escape,
    • Explorer,
    • F-150,
    • Flex,
    • Focus,
    • Fusion,
    • Mustang,
    • Police Interceptor Sedan,
    • Police Interceptor Utility,
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
  • Lincoln:
    • Continental,
    • MKC,
    • MKS,
    • MKT,
    • MKX,
    • MKZ
  • Mercury:
    • Mariner
  • 16 more
$5.84
$3.56
$5.84
$3.56