Four Seasons 3690NK A/C Compressor and Component Kit
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Four Seasons
 Complete A/C Kit

Four Seasons 3690NK A/C Compressor and Component Kit

Brand Four Seasons 3690NK
Compressor Oil Included Included
Compressor Oil Type PAG Oil /100
Expansion Device Type Liquid Line
Kit Includes 78558 (New Compressor), 83107 (Accum), 56822 (Liq w/ Ofifice), 59002 (Oil), O-Rings
Receiver Drier/Accumulator Diameter IN 3.500
Receiver Drier/Accumulator Inlet Fitting Size IN 0.625
Receiver Drier/Accumulator Inlet Fitting Size MM 15.875
Receiver Drier/Accumulator Inlet Fitting Type Male Springlock
Receiver Drier/Accumulator Length IN 7.500
Receiver Drier/Accumulator Outlet Fitting Size IN 0.625
Receiver Drier/Accumulator Outlet Fitting Size MM 15.875
Receiver Drier/Accumulator Outlet Fitting Type Male Springlock
Refrigerant Type R134a
Type Complete Air Conditioning Kit w/ New Compressor
Warranty Limited Lifetime
Product line Complete A/C Kit
Fits Dodge · 4 vehicles

Complete A/C kit. Includes a new compressor, accumulator, liquid line, oil, and O-rings.

PAG oil included. Pre-filled with PAG oil for the compressor.

R134a compatible. Built for R134a air conditioning systems.

Cross-references Four Seasons 3690NK for the same application. See all 1.

$268.57Free shipping
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Complete A/C Kit for Ram 1500 and Ram 2500

Four Seasons 3690NK is a Complete A/C Kit with a new compressor for select 2002-2003 Dodge Ram trucks. It is built around R134a service requirements and includes PAG oil, a liquid line expansion device, and matching accumulator components for a full air conditioning repair.

Key Features

  • Complete Air Conditioning Kit with new compressor
  • Includes compressor oil: PAG Oil /100
  • Refrigerant type: R134a
  • Expansion device type: liquid line
  • Kit includes 78558 new compressor, 83107 accumulator, 56822 liquid line with orifice, 59002 oil, and O-rings
  • Receiver drier/accumulator with male springlock inlet and outlet fittings
  • Limited lifetime warranty

Product Details

Four Seasons Complete A/C Kit 3690NK is organized for direct service on the air conditioning system rather than a single-component repair. The kit combines the compressor, accumulator, liquid line with orifice, oil, and O-rings to support a complete refresh of the HVAC circuit. This part number is listed for 2002 Dodge Ram 1500 and 2003 Dodge Ram 1500, as well as 2003 Dodge Ram 2500 applications with SD7H15 compressor and chamfered ports noted in the fitment data. Four Seasons 3690NK is a practical choice when replacing worn A/C hardware on a Dodge Ram 1500 or Dodge Ram 2500 and restoring system operation with R134a refrigerant.

This part cross-references Four Seasons 3690NK for the same application.

Common A/C Problems This Kit Addresses

  • Loss of cooling performance from a worn compressor
  • Contaminated or moisture-affected A/C components
  • Restricted refrigerant flow through the liquid line orifice
  • Accumulator-related moisture control and system contamination issues
  • Service repairs that require multiple matched A/C components

Installation Notes and Tips

Verify compressor style, port configuration, and vehicle fitment before installation. The fitment notes specify SD7H15 compressor and chamfered ports for the 2003 Dodge Ram 1500 and 2003 Dodge Ram 2500 applications. Replace O-rings during service, confirm the system is evacuated properly, and charge only with the refrigerant type specified for the vehicle. Follow OEM service procedures for oil balance and component replacement.

Quality Assurance

Four Seasons backs this Complete A/C Kit with a limited lifetime warranty.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2003DodgeRam 15004.7LV8N/Aw/ SD7H15 Compressor; Compressor w/ Chamfered Ports; Includes: 78558 (New Compressor), 83107 (Accum), 56822 (Liq w/ Ofifice), 59002 (Oil), O-Rings; Complete A/C Kit
2003DodgeRam 15003.7LV6N/Aw/ SD7H15 Compressor; Compressor w/ Chamfered Ports; Includes: 78558 (New Compressor), 83107 (Accum), 56822 (Liq w/ Ofifice), 59002 (Oil), O-Rings; Complete A/C Kit
2003DodgeRam 25004.7LV8N/Aw/ SD7H15 Compressor; Compressor w/ Chamfered Ports; Includes: 78558 (New Compressor), 83107 (Accum), 56822 (Liq w/ Ofifice), 59002 (Oil), O-Rings; Complete A/C Kit
2002DodgeRam 15004.7LV8N/AIncludes: 78558 (New Compressor), 83107 (Accum), 56822 (Liq w/ Ofifice), 59002 (Oil), O-Rings; Complete A/C Kit
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 3690NK