Four Seasons 1509NK A/C Compressor and Component Kit

Complete A/C Kit for Ram HD Trucks

Restore the air conditioning system on select Dodge Ram heavy-duty trucks with this Four Seasons Complete A/C Kit. Built around a new compressor and matched service components, this kit is organized for 2003-2005 Dodge Ram 2500 and Dodge Ram 3500 applications with an SD7H15 compressor setup.

The Four Seasons Complete A/C Kit line brings together the major replacement parts needed for a full A/C service in one package. Part number 1509NK includes a new compressor, accumulator, liquid line with orifice, PAG oil, and O-rings to support a complete repair on the listed Ram HD fitments.

Key Features

• Four Seasons Complete A/C Kit, part number 1509NK
• Fits 2003-2005 Dodge Ram 2500 and 2003-2005 Dodge Ram 3500
• For vehicles with SD7H15 compressor applications
• Includes a new compressor, accumulator, liquid line with orifice, PAG oil, and O-rings
• Uses R134a refrigerant
• Compressor oil included: PAG Oil /100
• Gaskets and seals included
• Limited lifetime warranty

Detailed Description

This complete air conditioning kit is built for Ram 2500 and Ram 3500 trucks that use an SD7H15 compressor. It includes the core replacement components needed to service the system: a new compressor, accumulator, liquid line with orifice, PAG oil, and sealing components. The accumulator measures 3.500 inches in diameter and 7.500 inches in length, with male springlock inlet and outlet fittings sized at 0.625 inch (15.875 mm).

Use part number 1509NK when you need a complete A/C compressor kit for 2003-2005 Dodge Ram 2500 or Dodge Ram 3500 models. This part cross-references 520315 for the same application.

Common Problems This Kit Can Address

• Loss of cooling performance in the cabin
• Compressor failure or noisy compressor operation
• Restricted refrigerant flow through the liquid line or orifice
• Moisture or contamination in the A/C system after component failure
• Leaks at worn seals or connection points

Installation Notes and Tips

Verify the vehicle uses an SD7H15 compressor before ordering. Replace the accumulator and sealing components during service, and evacuate and recharge the system with R134a refrigerant after installation. Confirm all springlock connections are fully seated and check for leaks before returning the vehicle to service.

Quality Assurance

Four Seasons backs this Complete A/C Kit with a limited lifetime warranty. Part number 1509NK is built for the listed Dodge Ram 2500 and Ram 3500 applications and is supplied as a complete air conditioning kit with new compressor components.