Four Seasons 4954NK A/C Compressor and Component Kit

Complete A/C Kit for Dodge Ram Applications

Four Seasons 4954NK is a Complete A/C Kit built for specific Dodge Ram truck applications that use an SD7H15 compressor. It combines the major air conditioning service components needed for a full system refresh, including a new compressor, accumulator, liquid line with orifice, PAG oil, and O-rings.

For 1998-2001 Dodge Ram 1500, 1998-2001 Dodge Ram 2500, 1998-2001 Dodge Ram 3500, and 1999-2001 Dodge Ramcharger applications, this kit is organized for direct replacement service on R134a systems. The Four Seasons 4954NK kit is a practical option when restoring cooling performance on a Dodge Ram or Ramcharger with the correct compressor setup.

Key Features

• Complete air conditioning kit with new compressor
• Includes compressor oil: PAG Oil /100
• Uses R134a refrigerant system specifications
• Liquid line expansion device type
• Gaskets and seals included
• Receiver drier/accumulator included with male springlock fittings
• Limited lifetime warranty
• Four Seasons Complete A/C Kit product line

Detailed Description

Four Seasons 4954NK is a complete A/C compressor kit designed around the components commonly replaced during a full HVAC repair. The kit includes 58553 new compressor, 33513 accumulator, 56824 liquid line with orifice, 59002 oil, and O-rings. It is specified for vehicles equipped with an SD7H15 compressor, including Sanden U4692 and U4605 compressor applications noted in the fitment data. The receiver drier/accumulator measures 3.500 inches in diameter and 8.000 inches in length, with 0.625 inch (15.875 mm) inlet fitting size and male springlock inlet and outlet connections.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Use Four Seasons 4954NK when servicing Dodge Ram 1500, Dodge Ram 2500, Dodge Ram 3500, or Dodge Ramcharger models that match the listed compressor configuration and R134a system requirements.

What It Helps Address

• Weak or inconsistent cabin cooling
• Noisy or failing A/C compressor operation
• Contaminated or worn refrigerant circuit components
• Moisture-related A/C system performance issues
• Leaks at seals, O-rings, or service connections

Installation Notes and Tips

Verify compressor style and system configuration before installation. This kit is listed for vehicles with SD7H15 compressor applications and specific Sanden compressor references, so matching the original setup is important. Replace the accumulator and liquid line components during service, evacuate the system properly, and recharge with the correct R134a refrigerant and PAG Oil /100 specification.

Check all springlock connections and O-ring sealing surfaces for wear or contamination before assembly. Confirm fitment against the vehicle year, make, model, and compressor notes for the exact Dodge Ram or Ramcharger application.

Quality Assurance

Four Seasons backs this Complete A/C Kit with a limited lifetime warranty. The 4954NK part number is also referenced under Four Seasons interchange listing 4954NK, with additional cross-reference numbers noted for the same application.