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Choose your Engine for your 1978 Mercury Monarch


Showing 1 - 10 of 29 products
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Dayco
  • Product Attributes:
    • Top Width: .53
    • Outside Circumference:
      • 37.27
      • 946.66
    • Color: Black
    • Banded Belt: N
    • Standards: Sae J636, Sae J637
    • Effective Length:
      • 37
      • 939.80
    • Belt Construction: Bottom Cog
    • Minimum Operating Temperature:
      • -35
      • -37.2
    • Material: Synthetic Rubber Compound
    • Maximum Operating Temperature:
      • 175
      • 79.4

This Part Fits the Following OEM/Substitute Numbers:
02117-92523, 11502336, 11720-V5001, 11720-V5012, 11920-05D01, 11920-J7525, 11920-N9505, 11920-P30101, 11920-W3200, 12.5X940, 13A0940, 141-1237, 16-372, 16.97-07553, 16370, 17-372, 17370, 17371...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Position Engine CID
1978 - Mercury Monarch L - Air Conditioning 6 Cyl 4.1L 250

Four Seasons
  • System Mounted Adjustable Cycling Temperature Switch
  • Dealer Installed AC Temperature Switch
  • System Mounted Adjustable Cycling Temperature Switch
  • Temperature Switch
  • Product Attributes:
    • Meets / Exceeds OEM?: Yes
    • Mnt Sys Loc: System Mount
    • Connector Shape: Open Blade
    • Temperature On: 52
    • Activation Control: Driver Adjustable Knob
    • Description: Switch-temp /system Mount
    • Cap Tube Lgth MM: 863.6
    • Color: Metal
    • Temperature Off: 34
    • Weather Pack?: No
    • Cap Tube Lgth IN: 34
    • Type: Temperature
    • Material: Metal
  • Features:
    • OE style connectors
    • Precision engineered
    • Quality contacts ensure proper conductivity
    • Contains gaskets, o-rings, or seals to properly replace the product
  • Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Four Seasons.

This Part Fits the Following OEM/Substitute Numbers:
0000881126, 0034221, 0034619, 01478586, 02684769, 0314002, 1034565M91, 1072139M91, 109268C2, 11135845, 111605, 113076, 1162474, 11624749, 11842, 11844, 1247100, 1247232...VIEW MORE

Additional Fitment Information:
Vehicle
1978 - Mercury Monarch

Sealed Power
  • Ductile 2nd Ring Moly Steel Top Ring Premium Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in) Standard

This Part Fits the Following OEM/Substitute Numbers:
1389176, 210-6114, 251K, 2M139, 3205941, 3549588, 3579044, 3780016, 3799438, 3839510, 3892364, 3893202, 40564, 40564CP, 474170, 6474170, 8271, E-251K...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - Mercury Monarch V - 8 Cyl 5.0L 302

National Bearing
  • with 8 (in) Ring Gear
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
13700, 217A124X06.5, 2620388, 2620406, 291105, 291119, 417.61001, 47413, 47457, 52-21-5323, 64220, 80704, 9569S, A64220, C3OW1177B, C4OZ1177A, C7OW1177E, C7OW1177K...VIEW MORE

Additional Fitment Information:
Vehicle Position
1978 - Mercury Monarch Rear

Mr Gasket
  • 160 deg.; Race Only
  • High Performance Thermostat; 160 deg.; Race Only;
  • High Performance Thermostat
  • Product Attributes:
    • Temperature: 160° F
    • WARNING CA Proposition 65: Yes
    • Diameter (in.): 2.120 In.
  • Features:
    • High Performance
    • Resists Variations In Coolant
    • Brass and Copper Construction
    • Opens At Right Temperature
  • Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - Mercury Monarch V - 8 Cyl 5.0L 302

Mr Gasket
  • 160 deg.; Race Only
  • High Performance Thermostat; 160 deg.; Race Only;
  • High Performance Thermostat
  • Product Attributes:
    • Temperature: 160° F
    • WARNING CA Proposition 65: Yes
    • Diameter (in.): 2.120 In.
  • Features:
    • High Performance
    • Resists Variations In Coolant
    • Brass and Copper Construction
    • Opens At Right Temperature
  • Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - Mercury Monarch V - 8 Cyl 5.0L 302

Wagner Lighting
  • Standard Multi-Purpose Light Bulb Box of 10
  • Boxed Product; Miniature Lamp
  • Wagner Standard 1157 Standard Multi-Purpose Light Bulb Box of 10
  • Product Attributes:
    • Bulb Color: Clear
    • Average Rated Life: 1200
    • Voltage: 12.800
    • Wattage: 26.880
    • Secondary Filament Type: C-6
    • Amperage Rating: 2.100
    • Secondary Average Rated Life: 5000
    • Filament Type: C-6
    • Secondary Voltage: 14.000
    • Secondary Amperage Rating: 0.590
    • Filament Quantity: 2
    • Secondary Brightness: 3.000
    • Secondary Wattage: 8.260
    • Bulb Type: Miniature Lamp S-8
    • Bulb Base Type: Double Contact Index
    • Brightness: 32.000
  • Features:
    • MULTIPURPOSE LIGHTING -- Designed for wide range of interior and exterior automotive lighting applications like turn signals, taillights, brake lights and cargo lights
    • BUILT TO LAST -- Continuous coil filament resists shock and vibration and improves the life of the bulb
    • HIGH QUALITY -- High-grade filament and natural amber glass (application-specific) for dependable long-lasting performance
    • DOT/SAE COMPLIANT -- Wagner lighting products are Department of Transportation (DOT) compliant and meet or exceed Society of Automotive Engineers (SAE) standards
    • COMPREHENSIVE COVERAGE -- Available for passenger car and light truck, commercial and off-highway, agriculture and industrial, marine and powersport applications
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • This item must be purchased in quantities of 10

This Part Fits the Following OEM/Substitute Numbers:
0000511157P, 00234-01157, 0023401157, 0K2AA51278, 1011582, 109460, 111157, 1157, 1157CP, 117528, 137847146000, 137847146100, 1378471461XX, 21759G1, 2255669, 23401157, 256847146100, 26279EM00A...VIEW MORE

Additional Fitment Information:
Vehicle
1978 - Mercury Monarch

Wagner Lighting
  • Standard Multi-Purpose Light Bulb Box of 10
  • Boxed Product; Miniature Lamp
  • Wagner Standard 1157 Standard Multi-Purpose Light Bulb Box of 10
  • Product Attributes:
    • Bulb Color: Clear
    • Average Rated Life: 1200
    • Voltage: 12.800
    • Wattage: 26.880
    • Secondary Filament Type: C-6
    • Amperage Rating: 2.100
    • Secondary Average Rated Life: 5000
    • Filament Type: C-6
    • Secondary Voltage: 14.000
    • Secondary Amperage Rating: 0.590
    • Filament Quantity: 2
    • Secondary Brightness: 3.000
    • Secondary Wattage: 8.260
    • Bulb Type: Miniature Lamp S-8
    • Bulb Base Type: Double Contact Index
    • Brightness: 32.000
  • Features:
    • MULTIPURPOSE LIGHTING -- Designed for wide range of interior and exterior automotive lighting applications like turn signals, taillights, brake lights and cargo lights
    • BUILT TO LAST -- Continuous coil filament resists shock and vibration and improves the life of the bulb
    • HIGH QUALITY -- High-grade filament and natural amber glass (application-specific) for dependable long-lasting performance
    • DOT/SAE COMPLIANT -- Wagner lighting products are Department of Transportation (DOT) compliant and meet or exceed Society of Automotive Engineers (SAE) standards
    • COMPREHENSIVE COVERAGE -- Available for passenger car and light truck, commercial and off-highway, agriculture and industrial, marine and powersport applications
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • This item must be purchased in quantities of 10

Additional Fitment Information:
Vehicle Position
1978 - Mercury Monarch Rear

Wagner Lighting
  • Standard Multi-Purpose Light Bulb Box of 10
  • Boxed Product; Miniature Lamp
  • Wagner Standard 1157 Standard Multi-Purpose Light Bulb Box of 10
  • Product Attributes:
    • Bulb Color: Clear
    • Average Rated Life: 1200
    • Voltage: 12.800
    • Wattage: 26.880
    • Secondary Filament Type: C-6
    • Amperage Rating: 2.100
    • Secondary Average Rated Life: 5000
    • Filament Type: C-6
    • Secondary Voltage: 14.000
    • Secondary Amperage Rating: 0.590
    • Filament Quantity: 2
    • Secondary Brightness: 3.000
    • Secondary Wattage: 8.260
    • Bulb Type: Miniature Lamp S-8
    • Bulb Base Type: Double Contact Index
    • Brightness: 32.000
  • Features:
    • MULTIPURPOSE LIGHTING -- Designed for wide range of interior and exterior automotive lighting applications like turn signals, taillights, brake lights and cargo lights
    • BUILT TO LAST -- Continuous coil filament resists shock and vibration and improves the life of the bulb
    • HIGH QUALITY -- High-grade filament and natural amber glass (application-specific) for dependable long-lasting performance
    • DOT/SAE COMPLIANT -- Wagner lighting products are Department of Transportation (DOT) compliant and meet or exceed Society of Automotive Engineers (SAE) standards
    • COMPREHENSIVE COVERAGE -- Available for passenger car and light truck, commercial and off-highway, agriculture and industrial, marine and powersport applications
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • This item must be purchased in quantities of 10

Additional Fitment Information:
Vehicle Position
1978 - Mercury Monarch Rear

Dayco
  • with 70 Amp Alternator with Air Conditioning
  • Product Attributes:
    • Top Width: .44
    • Outside Circumference:
      • 1043.18
      • 41.07
    • Color: Black
    • Banded Belt: N
    • Standards: Sae J636, Sae J637
    • Effective Length:
      • 1028.70
      • 40.50
    • Belt Construction: Bottom Cog
    • Minimum Operating Temperature:
      • -35
      • -37.2
    • Material: Synthetic Rubber Compound
    • Maximum Operating Temperature:
      • 175
      • 79.4

This Part Fits the Following OEM/Substitute Numbers:
04-00217, 1.721.408, 11 23 1 721 408, 11A1030, 13405, 13406, 13409, 13410, 141-0414, 15-405, 15-412, 15405, 15410, 15411, 15W405L, 16.97.08034, 1827369, 21X16091A...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Position Engine CID
1978 - Mercury Monarch V - Alternator 8 Cyl 5.0L 302
Showing 1 - 10 of 29 products

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