Is the evaporator core separately serviceable, and How to service it on Mercury Grand Marquis?

The evaporator core must be replaced with its housing assembly. The suction accumulator only needs replacement if contaminated by a failed A/C compressor. If a leak is suspected, test it before removal. To service, remove the housing, transfer components to the new housing, and install it.

What are the steps and considerations for installing the evaporator core and auxiliary air conditioning housing as a complete unit on Mercury Villager?

Attach the evaporator core and auxiliary A/C housing together. Suction accumulator should be replaced only in the cases in which contamination by a failed compressor or damage is observed. Test before removing in case of an evaporator core leakage. Take A/C housing off, put parts on the new housing, and put them back.

OEM Mercury Evaporator

A/C Evaporator Core

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59 Evaporators found

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Mercury Evaporator Core, Front Part Number: 4L2Z-19860-AA
$149.77 MSRP: $207.19
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Product Specifications
- Other Name: Core - Air Conditioning Evaporator; A/C Evaporator Core, Front; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator
- Position: Front
Fits the following Mercury Models:
- Mountaineer | 2005 | Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Evaporator Core, Front Part Number: 5F9Z-19860-CA
$134.12 MSRP: $185.54
You Save: $51.42 (28%)
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Product Specifications
- Other Name: Core - Air Conditioning Evaporator; A/C Evaporator Core, Front; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator
- Position: Front
Fits the following Mercury Models:
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Evaporator Core Part Number: 7W7Z-19850-A
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core and Case Assembly; A/C Evaporator Core Repair Kit; Housing Assembly; A/C Evaporator
- Replaces: 6W7Z-19850-CA
Fits the following Mercury Models:
- Grand Marquis | 2006-2011 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Evaporator Core Part Number: E6LY19860A
Product Specifications
- Other Name: Core - Air Conditioning; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator; Core - Air Conditioning Evaporator
Fits the following Mercury Models:
- Cougar | 1987-1988 | LS, XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
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Mercury Evaporator Core Part Number: 8L2Z-19850-D
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core and Case Assembly; A/C Evaporator Core Repair Kit; Heater Core; Housing Assembly; Case Assembly; A/C Evaporator
- Replaces: 8L2Z-19850-C, 7L2Z-19850-A, 6L2Z-19850-CC, 6L2Z-19850-CD
Fits the following Mercury Models:
- Mountaineer | 2006-2008 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Evaporator Core Part Number: 9L2Z-19850-A
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core and Case; HVAC Unit; Repair Kit; Heater Core.; Housing Assembly; Case Assembly
- Replaces: 8L2Z-19850-A
Fits the following Mercury Models:
- Mountaineer | 2008-2010 | Base, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Evaporator Core Part Number: 2F1Z-19850-A
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Case & Repair Kit.; Housing Assembly; Case Assembly
- Replaces: 2F1Z-19850-CA
Fits the following Mercury Models:
- Sable | 2002-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Evaporator Core Part Number: AG1Z-19850-B
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Case; A/C Evaporator Core Repair Kit; A/C Evaporator; Heater Core; Evaporator Case; Case Assembly
- Replaces: 8G1Z-19850-B, 8G1Z-19850-E
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Evaporator Core Part Number: 1L2Z-19850-FB
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator
- Manufacturer Note: Includes Temperature Blend And Air Distribution Doors
Fits the following Mercury Models:
- Mountaineer | 2002 | Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Evaporator Assembly Part Number: 3W7Z-19850-DA
Product Specifications
- Other Name: A/C Evaporator Core and Case Assembly; A/C Evaporator Core Repair Kit; Housing Assembly; A/C Evaporator
- Manufacturer Note: For vehicles built before 2/18/05 also order 5W7Z-19A786-AA., with ATC
Fits the following Mercury Models:
- Grand Marquis | 2003-2005 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Evaporator Core Part Number: E25Y19860A
Product Specifications
- Other Name: Core - Air Conditioning; A/C Evaporator Core Repair Kit; A/C Evaporator; Evaporator; Core - Air Conditioning Evaporator
Fits the following Mercury Models:
- Capri | 1984-1986 | 5.0, GS, RS, RS Turbo | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Cougar | 1984-1986 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Marquis | 1984-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG, 6 Cyl 3.8 L GAS
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Mercury Lower Case Part Number: 1F1Z-19850-A
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Case & Repair Kit.; Evaporator Core; Evaporator Case; Housing Assembly; Case Assembly
- Replaces: 1F1Z-19850-CA, YF3Z-19850-BA, YF1Z-19850-DB, XF3Z-19850-CB
Fits the following Mercury Models:
- Sable | 2005, 1996-2001 | G, GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Evaporator Core Part Number: 1F1Z-19850-B
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Case & Repair Kit.; Housing Assembly; Case Assembly
- Replaces: 1F1Z-19850-DA, YF1Z-19850-EB
Fits the following Mercury Models:
- Sable | 2004-2005, 1996-2001 | G, GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Evaporator Core, Front Part Number: 1L2Z-19850-ED
Product Specifications
- Other Name: Evaporator Assembly; HVAC Unit Case, Front; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Housing Assembly; Case Assembly; Evaporator
- Manufacturer Note: Includes Temperature Blend And Air Distribution Doors
- Position: Front
Fits the following Mercury Models:
- Mountaineer | 2002 | Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Evaporator Core, Driver Side Part Number: 1W1Z-19850-CA
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Repair Kit; A/C Evaporator; Housing Assembly; Case Assembly; Case; Housing
- Manufacturer Note: FROM 5/1/01
- Position: Driver Side
Fits the following Mercury Models:
- Grand Marquis | 1992-2002 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Housing Assembly Part Number: 1W7Z-19850-CA
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core; Evaporator
- Manufacturer Note: w/manual A/C
Fits the following Mercury Models:
- Grand Marquis | 2001-2002 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Housing Assembly Part Number: 1W7Z-19850-DA
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core; Evaporator
- Manufacturer Note: WITH ATC
Fits the following Mercury Models:
- Grand Marquis | 2001-2002 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Evaporator Core Part Number: 2F1Z-19850-DA
Product Specifications
- Other Name: Evaporator Assembly; A/C Evaporator Core Case; A/C Evaporator Core Repair Kit; Housing Assembly; Case Assembly; A/C Evaporator Core; A/C Evaporator; Evaporator
- Manufacturer Note: Use the following to attach 19850 to firewall: (3) 1L2Z-19C856-AA washers and N804109S309 nuts., with EATC, BEFORE 8/27/04
Fits the following Mercury Models:
- Sable | 2002-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Evaporator Core, Front Part Number: 3F2Z-19860-AA
Product Specifications
- Other Name: Core - Air Conditioning Evaporator; A/C Evaporator Core, Front; A/C Evaporator Core Repair Kit; A/C Evaporator Core; A/C Evaporator; Evaporator
- Position: Front
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
View related parts
Mercury Evaporator Core, Front Part Number: 4L2Z-19850-BC
Product Specifications
- Other Name: Evaporator Assembly; HVAC Unit Case, Front; A/C Evaporator Core Repair Kit; A/C Evaporator; Housing Assembly; Case Assembly
- Position: Front
- Replaces: 4L2Z-19850-BA, 4L2Z-19850-BB
Fits the following Mercury Models:
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS

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Mercury Evaporator Parts and Q&A

Evaporator Assembly
3W7Z-19850-DA
Q: Is the evaporator core separately serviceable, and How to service it on Mercury Grand Marquis?
A: The evaporator core must be replaced with its housing assembly. The suction accumulator only needs replacement if contaminated by a failed A/C compressor. If a leak is suspected, test it before removal. To service, remove the housing, transfer components to the new housing, and install it.
Housing Assembly
XF5Z-19B555-DA
Q: What are the steps and considerations for installing the evaporator core and auxiliary air conditioning housing as a complete unit on Mercury Villager?
A: Attach the evaporator core and auxiliary A/C housing together. Suction accumulator should be replaced only in the cases in which contamination by a failed compressor or damage is observed. Test before removing in case of an evaporator core leakage. Take A/C housing off, put parts on the new housing, and put them back.