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Replacement and OEM Parts for Mercury HVAC Pressure Switches
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Mercury HVAC Pressure Switches

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  • OEM Mercury Coil Valve Diagram - F65Z-19D644-AA
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    OEM (Genuine) Mercury Coil Valve

    PartNumber: F65Z-19D644-AA
    OEM Mercury Coil Valve - F65Z-19D644-AA
    Product Specifications
    • Item Dimensions: 6.1 x 4.1 x 4.2 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: F65Z-19D644-A1A
    • Part Description: Mercury Coil Valve
    More Info
    $35.67 MSRP: $56.91
    You Save: $21.24 (38%)
  • Four Seasons Hvac Pressure Switch for Mercury - 20916

    Four Seasons® Hvac Pressure Switch for Mercury

    PartNumber: 20916
    Product Specifications
    • Color: Black
    • Comp Open/Closed: Closed
    • Connector Gender: Female
    • Connector Shape: Round
    • Fitting Gender: Female
    • Fitting Thread Size: M10 x 1.25
    • Harness Connector: [37235] / Harness Connector
    • Item Included A Desc: 24606
    • Item Included A Qty.: 1
    • Material: Steel
    • Meets / Exceeds OEM: YES
    • Mnt Sys Loc: System Mounted
    • Number of Terminals: 2
    • Off Pressure: 430
    • Operate Psi High Off: 430
    • Operate Psi High On: 285
    • Style: High Cut-Out
    • Terminal Type: Pin
    • UPC: 096361209169
    • Voltage: 12
    • Weather Pack: Yes
    • Part Description: Mercury Hvac Pressure Switch
    More Info
    $33.87
  • OEM Mercury AC Tube Valve Diagram - 4L3Z-19D701-A
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    OEM (Genuine) Mercury AC Tube Valve

    PartNumber: 4L3Z-19D701-A
    OEM Mercury AC Tube Valve - 4L3Z-19D701-A
    Product Specifications
    • Item Dimensions: 6.4 x 4.2 x 4.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: F8RZ-19D701-AA, 4R3Z-19D701-AA
    • Part Description: Mercury AC Tube Valve
    More Info
    $6.34 MSRP: $9.93
    You Save: $3.59 (37%)
  • Four Seasons Hvac Pressure Switch for Mercury - 20054

    Four Seasons® Hvac Pressure Switch for Mercury

    PartNumber: 20054
    Product Specifications
    • Color: Brown
    • Comp Open/Closed: Closed
    • Connector Gender: Female
    • Connector Shape: Round
    • Fitting Gender: Female
    • Fitting Thread Size: 10mm x 1.25
    • Harness Connector: [37235] / Harness Connector
    • Item Included A Desc: 24606
    • Item Included A Qty.: 1
    • Material: Plastic / Metal
    • Meets / Exceeds OEM: YES
    • Mnt Sys Loc: System Mounted
    • Number of Terminals: 2
    • Off Pressure: 485
    • Operate Psi High Off: 485
    • Operate Psi High On: 280
    • Style: High Cut-Out
    • Terminal Type: Pin
    • UPC: 096361200548
    • Voltage: 12
    • Weather Pack: Yes
    • Part Description: Mercury Hvac Pressure Switch
    More Info
    $20.37
  • OEM Mercury Pressure Cycling Switch Diagram - F3AZ-19E561-A
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: F3AZ-19E561-A
    OEM Mercury Pressure Cycling Switch - F3AZ-19E561-A
    Product Specifications
    • Item Dimensions: 3.1 x 1.6 x 2.6 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: F57Z-19B968-A, F23Z-19E561-AA
    • Part Description: Mercury Pressure Cycling Switch
    More Info
    $37.61 MSRP: $60.00
    You Save: $22.39 (38%)
  • Four Seasons Hvac Pressure Switch for Mercury - 20056

    Four Seasons® Hvac Pressure Switch for Mercury

    PartNumber: 20056
    Product Specifications
    • Color: Yellow
    • Comp Open/Closed: Open
    • Connector Gender: Female
    • Connector Shape: Round
    • Fitting Gender: Female
    • Fitting Thread Size: M12 x 1.50
    • Harness Connector: [37235] / Harness Connector
    • Item Included A Desc: 24676
    • Item Included A Qty.: 1
    • Material: Plastic / Metal
    • Meets / Exceeds OEM: YES
    • Mnt Sys Loc: System Mounted
    • Number of Terminals: 2
    • Operate Psi Low Off: 11
    • Operate Psi Low On: 22
    • Style: Pressure
    • UPC: 096361200562
    • Part Description: Mercury Hvac Pressure Switch
    More Info
    $11.46
  • OEM Mercury Pressure Cut-Off Switch Diagram - 6L3Z-19D594-A
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    OEM (Genuine) Mercury Pressure Cut-Off Switch

    PartNumber: 6L3Z-19D594-A
    OEM Mercury Pressure Cut-Off Switch - 6L3Z-19D594-A
    Product Specifications
    • Item Dimensions: 6.2 x 4.0 x 4.2 inches
    • Item Weight: 0.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: F5TZ-19D594-AA
    • Part Description: Mercury Pressure Cut-Off Switch
    More Info
    $46.73 MSRP: $74.55
    You Save: $27.82 (38%)
  • OEM Mercury Suction Tube Valve Diagram - F7RZ-19D701-BA
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    OEM (Genuine) Mercury Suction Tube Valve

    PartNumber: F7RZ-19D701-BA
    OEM Mercury Suction Tube Valve - F7RZ-19D701-BA
    Product Specifications
    • Item Dimensions: 6.2 x 4.2 x 4.2 inches
    • Item Weight: 0.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Suction Tube Valve
    More Info
    $4.99 MSRP: $7.80
    You Save: $2.81 (37%)
  • OEM Mercury Inlet Tube Valve Assembly Diagram - 6M6Z-19E653-AA
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    OEM (Genuine) Mercury Inlet Tube Valve Assembly

    PartNumber: 6M6Z-19E653-AA
    OEM Mercury Inlet Tube Valve Assembly - 6M6Z-19E653-AA
    Product Specifications
    • Other Names: Inlet Tube Valve Assembly, Valve
    • Item Dimensions: 7.4 x 5.1 x 4.2 inches
    • Item Weight: 1.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 5M6Z-19E653-AA
    • Part Description: Mercury Inlet Tube Valve Assembly
    More Info
    $102.14 MSRP: $150.67
    You Save: $48.53 (33%)
  • OEM Mercury Pressure Switch Diagram - 6E5Z-19D594-AA
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    OEM (Genuine) Mercury Pressure Switch

    PartNumber: 6E5Z-19D594-AA
    OEM Mercury Pressure Switch - 6E5Z-19D594-AA
    Product Specifications
    • Other Names: Pressure Switch
    • Item Dimensions: 6.2 x 4.1 x 4.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Switch
    More Info
    $47.41 MSRP: $75.64
    You Save: $28.23 (38%)
  • OEM Mercury High Pressure Cut-Off Switch Diagram - 8C3Z-19D594-A
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    OEM (Genuine) Mercury High Pressure Cut-Off Switch

    PartNumber: 8C3Z-19D594-A
    OEM Mercury High Pressure Cut-Off Switch - 8C3Z-19D594-A
    Product Specifications
    • Item Dimensions: 6.2 x 4.0 x 4.2 inches
    • Item Weight: 0.40 Pounds
    • Replaces: 4C2Z-19D594-AA, YF1Z-19D594-AA
    • Part Description: Mercury High Pressure Cut-Off Switch
    More Info
    $28.15 MSRP: $44.91
    You Save: $16.76 (38%)
  • OEM Mercury Cut-Off Switch Diagram - E69Z-19D701-A
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    OEM (Genuine) Mercury Cut-Off Switch

    PartNumber: E69Z-19D701-A
    OEM Mercury Cut-Off Switch - E69Z-19D701-A
    Product Specifications
    • Item Dimensions: 6.3 x 4.2 x 4.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Cut-Off Switch
    More Info
    $4.65 MSRP: $7.27
    You Save: $2.62 (37%)
  • OEM Mercury Valve Assembly Diagram - 8S4Z-19D644-AA
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    OEM (Genuine) Mercury Valve Assembly

    PartNumber: 8S4Z-19D644-AA
    OEM Mercury Valve Assembly - 8S4Z-19D644-AA
    Product Specifications
    • Item Dimensions: 6.2 x 4.1 x 4.1 inches
    • Item Weight: 0.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Valve Assembly
    More Info
    $11.32 MSRP: $17.73
    You Save: $6.41 (37%)
  • OEM Mercury Switch Assembly Diagram - GC2Z-19E561-BA
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    OEM (Genuine) Mercury Switch Assembly

    PartNumber: GC2Z-19E561-BA
    OEM Mercury Switch Assembly - GC2Z-19E561-BA
    Product Specifications
    • Other Names: Switch Assembly, Vacuum Switch
    • Item Dimensions: 8.3 x 7.7 x 7.6 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: GC2Z-19E561-B
    • Part Description: Mercury Switch Assembly
    More Info
    $30.43 MSRP: $48.55
    You Save: $18.12 (38%)
  • OEM Mercury Pressure Cycling Switch Diagram - E35Y-19E561-A
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: E35Y-19E561-A
    OEM Mercury Pressure Cycling Switch - E35Y-19E561-A
    Product Specifications
    • Item Dimensions: 3.2 x 1.7 x 2.7 inches
    • Item Weight: 1.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Cycling Switch
    More Info
    $16.88 MSRP: $26.91
    You Save: $10.03 (38%)
  • OEM Mercury Pressure Cycling Switch Diagram - YC1Z-19E561-BA
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: YC1Z-19E561-BA
    OEM Mercury Pressure Cycling Switch - YC1Z-19E561-BA
    Product Specifications
    • Item Dimensions: 3.1 x 1.3 x 1.7 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Cycling Switch
    More Info
    $25.30 MSRP: $40.36
    You Save: $15.06 (38%)
  • OEM Mercury Cut-Off Switch Diagram - F58Z-19D594-A
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    OEM (Genuine) Mercury Cut-Off Switch

    PartNumber: F58Z-19D594-A
    OEM Mercury Cut-Off Switch - F58Z-19D594-A
    Product Specifications
    • Item Dimensions: 2.8 x 9.6 x 12.4 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Cut-Off Switch
    More Info
    $53.67 MSRP: $81.33
    You Save: $27.66 (35%)
  • OEM Mercury Pressure Cycling Switch Diagram - AM6Z-19E561-A
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: AM6Z-19E561-A
    OEM Mercury Pressure Cycling Switch - AM6Z-19E561-A
    Product Specifications
    • Other Names: Pressure Cycling Switch, Switch
    • Item Dimensions: 3.1 x 1.3 x 1.7 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Cycling Switch
    More Info
    $12.31 MSRP: $23.18
    You Save: $10.87 (47%)
  • OEM Mercury High Pressure Cut-Off Switch Diagram - 6L2Z-19D594-AA
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    OEM (Genuine) Mercury High Pressure Cut-Off Switch

    PartNumber: 6L2Z-19D594-AA
    OEM Mercury High Pressure Cut-Off Switch - 6L2Z-19D594-AA
    Product Specifications
    • Other Names: High Pressure Cut-Off Switch, Pressure Switch
    • Item Dimensions: 6.2 x 4.1 x 4.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: F3AZ-19D594-C
    • Part Description: Mercury High Pressure Cut-Off Switch
    More Info
    $35.67 MSRP: $56.91
    You Save: $21.24 (38%)
  • OEM Mercury High Pressure Relief Valve Diagram - F1CZ-19D644-A
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    OEM (Genuine) Mercury High Pressure Relief Valve

    PartNumber: F1CZ-19D644-A
    OEM Mercury High Pressure Relief Valve - F1CZ-19D644-A
    Product Specifications
    • Item Dimensions: 6.2 x 4.1 x 4.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: E73Z-19D644-A
    • Part Description: Mercury High Pressure Relief Valve
    More Info
    $23.36 MSRP: $37.27
    You Save: $13.91 (38%)
  • OEM Mercury Pressure Vent Diagram - F3DZ-19D644-A
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    OEM (Genuine) Mercury Pressure Vent

    PartNumber: F3DZ-19D644-A
    OEM Mercury Pressure Vent - F3DZ-19D644-A
    Product Specifications
    • Item Dimensions: 6.2 x 4.1 x 4.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Vent
    More Info
    $23.36 MSRP: $37.27
    You Save: $13.91 (38%)
  • OEM Mercury AC Switch Diagram - 6F9Z-19D594-AA
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    OEM (Genuine) Mercury AC Switch

    PartNumber: 6F9Z-19D594-AA
    OEM Mercury AC Switch - 6F9Z-19D594-AA
    Product Specifications
    • Item Dimensions: 6.4 x 4.1 x 4.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 6L2Z-19D594-BA, F6CZ-19D594-CB
    • Part Description: Mercury AC Switch
    More Info
    $86.93 MSRP: $153.09
    You Save: $66.16 (44%)
  • OEM Mercury High Pressure Cut-Off Switch Diagram - 8L8Z-19D594-A
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    OEM (Genuine) Mercury High Pressure Cut-Off Switch

    PartNumber: 8L8Z-19D594-A
    OEM Mercury High Pressure Cut-Off Switch - 8L8Z-19D594-A
    Product Specifications
    • Item Dimensions: 6.2 x 4.1 x 4.0 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: XS7Z-19D594-AA
    • Part Description: Mercury High Pressure Cut-Off Switch
    More Info
    $21.88 MSRP: $34.91
    You Save: $13.03 (38%)
  • OEM Mercury Pressure Cycling Switch Diagram - 5M6Z-19E561-AA
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: 5M6Z-19E561-AA
    OEM Mercury Pressure Cycling Switch - 5M6Z-19E561-AA
    Product Specifications
    • Other Names: Pressure Cycling Switch, Switch
    • Item Dimensions: 3.0 x 1.3 x 1.7 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Cycling Switch
    More Info
  • OEM Mercury Pressure Cycling Switch Diagram - 3W1Z-19E561-AA
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: 3W1Z-19E561-AA
    OEM Mercury Pressure Cycling Switch - 3W1Z-19E561-AA
    Product Specifications
    • Item Dimensions: 6.1 x 4.1 x 4.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Cycling Switch
    More Info
  • OEM Mercury High Pressure Cut-Off Switch Diagram - F4XY-19D594-A
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    OEM (Genuine) Mercury High Pressure Cut-Off Switch

    PartNumber: F4XY-19D594-A
    OEM Mercury High Pressure Cut-Off Switch - F4XY-19D594-A
    Product Specifications
    • Other Names: High Pressure Cut-Off Switch, Pressure Switch
    • Item Dimensions: 6.4 x 4.2 x 4.0 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury High Pressure Cut-Off Switch
    More Info
  • OEM Mercury Pressure Cycling Switch Diagram - 6W7Z-19E561-A
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    OEM (Genuine) Mercury Pressure Cycling Switch

    PartNumber: 6W7Z-19E561-A
    OEM Mercury Pressure Cycling Switch - 6W7Z-19E561-A
    Product Specifications
    • Item Dimensions: 6.1 x 4.0 x 4.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Cycling Switch
    More Info
  • OEM Mercury Pressure Relief Valve Diagram - 6E5Z-19D644-AA
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    OEM (Genuine) Mercury Pressure Relief Valve

    PartNumber: 6E5Z-19D644-AA
    OEM Mercury Pressure Relief Valve - 6E5Z-19D644-AA
    Product Specifications
    • Other Names: Pressure Relief Valve
    • Item Dimensions: 3.1 x 1.3 x 1.7 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Pressure Relief Valve
    More Info
  • Four Seasons HVAC Pressure High Cut-Out Switch for Mercury - 20889

    Four Seasons® HVAC Pressure High Cut-Out Switch for Mercury

    PartNumber: 20889
    Product Specifications
    • Color: Black
    • Comp Open/Closed: Closed
    • Connector Gender: Male
    • Connector Shape: Rectangle
    • Fitting Gender: Female
    • Fitting Thread Size: 3/8 in. x 24
    • Item Included A Desc: 24606
    • Item Included A Qty.: 1
    • Material: Steel
    • Meets / Exceeds OEM: YES
    • Mnt Sys Loc: System Mounted
    • Number of Terminals: 2
    • Off Pressure: 425
    • Operate Psi High Off: 425
    • Operate Psi High On: 270
    • Style: High Cut-Out
    • UPC: 096361208896
    • Voltage: 12
    • Weather Pack: Yes
    • Part Description: Mercury HVAC Pressure High Cut-Out Switch
    More Info
  • OEM Mercury Valve Assembly Diagram - 1L2Z-19D644-AA
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    OEM (Genuine) Mercury Valve Assembly

    PartNumber: 1L2Z-19D644-AA
    OEM Mercury Valve Assembly - 1L2Z-19D644-AA
    Product Specifications
    • Item Dimensions: 6.4 x 4.0 x 4.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Mercury Valve Assembly
    More Info
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