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  • OEM (Genuine) 1999 Mercury Mountaineer Thermostat

    PartNumber: YU3Z-8575-AA
    OEM 1999 Mercury Mountaineer Thermostat - YU3Z-8575-AA
    Product Specifications
    • Notes: Explorer, Mountaineer; 4.0l; Sohc
    • Other Names: Thermostat
    • Item Dimensions: 3.3 x 2.6 x 3.4 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: F7TZ-8575-A
    • Part Description: 1999 Mercury Mountaineer Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS
    $32.02 MSRP: $51.09
    You Save: $19.07 (38%)
  • VEMO Engine Coolant Thermostat for 1999 Mercury Mountaineer - V15-99-2002-1

    VEMO® Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: V15-99-2002-1
    Product Specifications
    • Notes: Grade: Aftermarket; Description: With Gasket; Temperature Range (Celsius): 87 C; Kit: Expert Kits +
    • Height [mm]: 45.84
    • Length [mm]: 53.89
    • Opening Temperature [°C]: 87
    • Packaging Depth [cm]: 6,8
    • Packaging height [cm]: 6,7
    • Packaging width [cm]: 4
    • Supplementary Article/Supplementary Info: with seal
    • Weight [kg]: 0,083
    • Width [mm]: 53.89
    • Part Description: 1999 Mercury Mountaineer Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
    $11.79
  • Gates OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33079

    Gates® OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33079
    Product Specifications
    • Notes: 190 Degree; Alternate Temperature
    • By-Pass Flange Diameter: 1.69"
    • Depth from Flange: 1.15"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.62"
    • Height from Flange: 1.29"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: Yes
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • OE Part Number: 280, 31159, 5609
    • Temperature (C): 88
    • Temperature (F): 190
    • Total Height: 2.44"
    • Type: OE Type Thermostat
    • UPC: 072053022469
    • Part Description: 1999 Mercury Mountaineer OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
    $24.26
  • Gates Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33006S

    Gates® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33006S
    Product Specifications
    • Notes: 160 Degree; Alternate Temperature
    • Depth from Flange: 0.83"
    • Design: Reverse Poppet
    • Flange Diameter: 2.13"
    • Height from Flange: 0.84"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • Temperature (C): 71
    • Temperature (F): 160
    • Total Height: 1.67"
    • Type: Premium Thermostat
    • UPC: 072053298451
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
    $8.67
  • Gates Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33008S

    Gates® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33008S
    Product Specifications
    • Notes: 180 Degree; Alternate Temperature
    • Depth from Flange: 0.84"
    • Design: Reverse Poppet
    • Flange Diameter: 2.13"
    • Height from Flange: 0.86"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 1.7"
    • Type: Premium Thermostat
    • UPC: 072053298468
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
    $8.01
  • Gates Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33009S

    Gates® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33009S
    Product Specifications
    • Notes: 195 Degree; OE Temperature
    • Depth from Flange: 0.82"
    • Design: Reverse Poppet
    • Flange Diameter: 2.13"
    • Height from Flange: 0.88"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • Temperature (C): 91
    • Temperature (F): 195
    • Total Height: 1.7"
    • Type: Premium Thermostat
    • UPC: 072053298475
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
    $8.01
  • Gates Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33509

    Gates® Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33509
    Product Specifications
    • Notes: 195 Degree; OE Temperature
    • Depth from Flange: 0.9"
    • Design: Reverse Poppet
    • Flange Diameter: 2.12"
    • Height from Flange: 0.66"
    • Includes Installation Tool: Yes
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • Temperature (C): 91
    • Temperature (F): 195
    • Total Height: 1.56"
    • Type: Economy Thermostat
    • UPC: 072053024821
    • Part Description: 1999 Mercury Mountaineer Economy Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
    $5.34
  • Gates Oe Type Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33078

    Gates® Oe Type Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33078
    Product Specifications
    • Notes: 174 Degree; Alternate Temperature
    • By-Pass Flange Diameter: 1.69"
    • Depth from Flange: 1.18"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.63"
    • Height from Flange: 1.29"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: Yes
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • Temperature (C): 79
    • Temperature (F): 174
    • Total Height: 2.47"
    • Type: OE Type Thermostat
    • UPC: 072053022452
    • Part Description: 1999 Mercury Mountaineer Oe Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
    $24.26
  • Gates Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33508

    Gates® Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33508
    Product Specifications
    • Notes: 180 Degree; Alternate Temperature
    • Depth from Flange: 0.82"
    • Design: Reverse Poppet
    • Flange Diameter: 2.12"
    • Height from Flange: 0.72"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 1.54"
    • Type: Economy Thermostat
    • UPC: 072053024814
    • Part Description: 1999 Mercury Mountaineer Economy Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
    $5.72
  • Gates Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33078S

    Gates® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33078S
    Product Specifications
    • Notes: 174 Degree; Alternate Temperature
    • By-Pass Flange Diameter: 1.7
    • Design: Bottom By-Pass
    • Height: 2.44
    • Height Between Flanges: 1.21
    • Height from Flange: 1.23
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: Yes
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 0
    • Sealing Flange Outside Diameter: 2.62
    • Start to Open Temperature: 174; 79
    • UPC: 770075745389
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
  • Gates Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 33079S

    Gates® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 33079S
    Product Specifications
    • Notes: 190 Degree; Alternate Temperature
    • By-Pass Flange Diameter: 1.7
    • Design: Bottom By-Pass
    • Height: 2.43
    • Height Between Flanges: 1.18
    • Height from Flange: 1.25
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: Yes
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 0
    • Sealing Flange Outside Diameter: 2.62
    • Start to Open Temperature: 190; 88
    • UPC: 770075157076
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
  • STANT Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer - 13008

    STANT® Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 13008
    Product Specifications
    • Notes: Temperature 180 Degrees; Alternate Temperature
    • Flange Diameter (Without Seal) (in): 2.125
    • Freight Class: 70
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.87
    • Temperature (F): 180 Degrees
    • UPC: 333420300390
    • Part Description: 1999 Mercury Mountaineer Economy Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
  • OEM (Genuine) 1999 Mercury Mountaineer Thermostat

    PartNumber: F7TZ8578A
    OEM 1999 Mercury Mountaineer Thermostat - F7TZ8578A
    Product Specifications
    • Notes: 4.0 Liter
    • Part Description: 1999 Mercury Mountaineer Thermostat
    Vehicle Fitment
    • 1999 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
  • STANT Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer - 13009

    STANT® Economy Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 13009
    Product Specifications
    • Notes: Temperature 195 Degrees; OE Temperature
    • Flange Diameter (Without Seal) (in): 2.125
    • Freight Class: 70
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.87
    • Temperature (F): 195 Degrees
    • UPC: 333420300918
    • Part Description: 1999 Mercury Mountaineer Economy Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
  • OEM (Genuine) 1999 Mercury Mountaineer Thermostat

    PartNumber: XL2Z8578AB
    OEM 1999 Mercury Mountaineer Thermostat - XL2Z8578AB
    Product Specifications
    • Notes: 5.0 Liter
    • Part Description: 1999 Mercury Mountaineer Thermostat
    Vehicle Fitment
    • 1999 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
  • STANT OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer - 13352

    STANT® OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 13352
    Product Specifications
    • Notes: Temperature 205 Degrees; Part Replacement Replaces 45352; Alternate Temperature
    • Flange Diameter (Without Seal): 2.125"
    • Height from Flange to Bottom: 0.82"
    • Height from Flange to Top of Bridge: 0.78"
    • OE Part Number: ZZM115171, ZZP115171, ZZM715171
    • Temperature (F): 205 Degrees
    • UPC: 033342033504
    • Part Description: 1999 Mercury Mountaineer OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
  • STANT OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer - 13640

    STANT® OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 13640
    Product Specifications
    • Notes: Temperature 180 Degrees; Part Replacement Replaces 15372, 46648; Alternate Temperature
    • OE Part Number: 34675, 0022034675, 0012031675, 0022033525, 0022033775, 0022033575, 0022033875, 0012039075, 0022037275, 0022037875, A0022033775, A0022037275, A0022034675, A0022037875, A0022033525, A0012039075, A0022033875, A0012031675, A0022033575, 133734, 156121113D, 075
    • Temperature (F): 180 Degrees
    • UPC: 333421745800
    • Part Description: 1999 Mercury Mountaineer OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
  • STANT OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer - 13648

    STANT® OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 13648
    Product Specifications
    • Notes: Temperature 174 Degrees; Alternate Temperature
    • Bypass Plate Diameter: 1.7"
    • Flange Diameter (Without Seal): 2.64"
    • Height from Flange to Bottom: 1"
    • Height from Flange to Top of Bridge: 1.19"
    • OE Part Number: 34675, 0022034675, 0012031675, 0022033525, 0022033775, 0022033575, 0022033875, 0012039075, 0022037275, 0022037875, A0022033775, A0022037275, A0022034675, A0022037875, A0022033525, A0012039075, A0022033875, A0012031675, A0022033575, 273320, 156121113D, 075
    • Temperature (F): 174 Degrees
    • UPC: 033342036482
    • Part Description: 1999 Mercury Mountaineer OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
  • STANT OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer - 13649

    STANT® OE Type Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 13649
    Product Specifications
    • Notes: Temperature 190 Degrees; Part Replacement Replaces 48019, 49379; OE Temperature
    • Bypass Plate Diameter: 1.7"
    • Flange Diameter (Without Seal): 2.64"
    • Height from Flange to Bottom: 1"
    • Height from Flange to Top of Bridge: 1.19"
    • OE Part Number: YU3Z8575AA, F7TZ8575A, 1102000415, 0032039975, 1102000515, 0022037675, 0022038175, A1102000515, A0032039975, A1102000415, A0022038175, A0022037675, 125121113F, 025121113E, 078121113C, 025121113F, 7700703137, 12301559, 273480, 2734804, 2734800, 273364, 273
    • Temperature (F): 190 Degrees
    • UPC: 033342036499
    • Part Description: 1999 Mercury Mountaineer OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
  • STANT Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 45356

    STANT® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 45356
    Product Specifications
    • Notes: Temperature 160 Degrees; Alternate Temperature
    • Flange Diameter (Without Seal) (in): 2.125
    • Freight Class: 70
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 160 Degrees
    • UPC: 333420315622
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
  • STANT Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 45358

    STANT® Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 45358
    Product Specifications
    • Notes: Temperature 180 Degrees; Alternate Temperature
    • Flange Diameter (Without Seal) (in): 2.125
    • Freight Class: 70
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 180 Degrees
    • UPC: 333420315868
    • Part Description: 1999 Mercury Mountaineer Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
  • STANT Superstat™ Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 45359

    STANT® Superstat™ Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 45359
    Product Specifications
    • Notes: Temperature 195 Degrees; OE Temperature
    • Flange Diameter (Without Seal) (in): 2.125
    • Freight Class: 70
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 195 Degrees
    • UPC: 333420315936
    • Part Description: 1999 Mercury Mountaineer Superstat™ Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 8 Cyl 5.0L
  • STANT Superstat™ Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 46648

    STANT® Superstat™ Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 46648
    Product Specifications
    • Notes: Temperature 174 Degrees; Part Replacement Replaced by 13640; Alternate Temperature
    • Bypass Plate Diameter (in): 1.7
    • Flange Diameter (Without Seal) (in): 2.64
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1
    • Height from Flange to Top of Bridge (in): 1.19
    • Temperature (F): 174 Degrees
    • UPC: 333421691978
    • Part Description: 1999 Mercury Mountaineer Superstat™ Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L
  • STANT Superstat™ Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer - 46649

    STANT® Superstat™ Premium Engine Coolant Thermostat for 1999 Mercury Mountaineer

    PartNumber: 46649
    Product Specifications
    • Notes: Temperature 190 Degrees; OE Temperature
    • Bypass Plate Diameter (in): 1.7
    • Flange Diameter (Without Seal) (in): 2.61
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.3
    • Height from Flange to Top of Bridge (in): 1.1
    • Temperature (F): 190 Degrees
    • UPC: 333421507446
    • Part Description: 1999 Mercury Mountaineer Superstat™ Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 1999 Mercury Mountaineer | All Trims | 6 Cyl 4.0L