Four Seasons 2128NK A/C Compressor and Component Kit - Front

Complete A/C Kit for HT6 Applications

The Four Seasons Complete A/C Kit 2128NK is a complete air conditioning kit with a new compressor for select GM and Isuzu applications using the HT6 compressor setup. It combines the major A/C service components needed to restore cooling performance in one matched package, including the compressor, accumulator, orifice tube, oil, and O-rings.

Built for R134a systems, this Four Seasons Complete A/C Kit is a direct-fit solution for vehicles such as the Chevrolet S10, GMC Sonoma, GMC Jimmy, Oldsmobile Bravada, and Isuzu Hombre. Part number 2128NK is also referenced by 520539 and MK1011 for the same application.

Key Features

• Complete A/C kit with new compressor
• Includes PAG oil /150 for system service
• Uses a standard white orifice tube with 0.072 in. diameter
• Accumulator included with female O-ring inlet and male insert O-ring outlet
• Gaskets and seals included
• Designed for R134a refrigerant systems
• Limited lifetime warranty

Product Details

Four Seasons 2128NK is a Complete A/C Kit from the Complete A/C Kit line, built to simplify air conditioning repair on confirmed HT6 compressor applications. The kit includes a new compressor, accumulator, orifice tube, oil, and O-rings so the core service parts are matched for the system. The accumulator measures 3.500 inches in diameter and 9.000 inches in length, and the orifice tube is a standard white style with a 0.072-inch opening.

Compatible With 1999-2005 Chevrolet Blazer, 2003-2005 GMC Jimmy, 1999 GMC Jimmy, 1999-2004 Chevrolet S10, 1999-2004 GMC Sonoma, 2000-2002 GMC Jimmy, 1999-2001 Oldsmobile Bravada, 1999-2000 Isuzu Hombre, 1998 Chevrolet S10, 1998 GMC Jimmy, 1998 GMC Sonoma, and 1998 Oldsmobile Bravada. This part number, 2128NK, is a practical choice when servicing the A/C system on Chevrolet S10 and GMC Sonoma platforms with HT6 compressor fitment.

Common Problems This Kit Can Address

• Loss of cabin cooling from compressor wear or failure
• Contaminated or depleted A/C oil during compressor replacement
• Restricted refrigerant flow from a worn or incorrect orifice tube
• Moisture or debris concerns in the accumulator section of the system
• Leaking seals or O-rings at service connections

Installation Notes and Tips

Verify HT6 compressor fitment before ordering and confirm the vehicle uses R134a refrigerant. Replace the accumulator and orifice tube during compressor service, and follow proper evacuation, flushing, and recharge procedures for the system. Check all O-ring and fitting connections during installation to help prevent refrigerant loss.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The matched component set is assembled for confirmed applications and uses the specified PAG oil /150 and included seals to support a proper A/C system repair.