Four Seasons 30126SK A/C Compressor Replacement Service Kit

Four Seasons A/C Service Kit for GM Trucks and SUVs

The Four Seasons 30126SK A/C Installer Kit is built for R134a systems that use an orifice tube expansion device and PAG 46 compressor oil. It brings together the core service components needed for a compressor replacement on select Chevrolet, GMC, Oldsmobile, and Isuzu applications, including the accumulator, orifice tube, and compressor oil.

Key Features

• Part number 30126SK from Four Seasons A/C Installer Kits
• Includes accumulator, orifice tube, and compressor oil
• PAG Oil / 46 formulation for R134a A/C systems
• Standard white orifice tube with 0.072 in. diameter
• Accumulator with female O-ring inlet and male insert O-ring outlet
• Limited lifetime warranty

Product Details

Four Seasons 30126SK is an A/C compressor replacement service kit for vehicles using an orifice tube system. The kit is configured around PAG 46 compressor oil and R134a refrigerant service requirements, making it a direct match for common GM compact truck and SUV platforms. This part number 30126SK is listed for Chevrolet Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, Oldsmobile Bravada, and Isuzu Hombre applications, with fitment covering model years from 1996 through 2005 depending on the vehicle.

The Four Seasons A/C Installer Kits line is organized to support compressor replacement service by combining the major wear items associated with the repair. For this application, the kit centers on the accumulator and orifice tube specifications needed for the listed vehicles, including the 3.500 in. accumulator diameter and 9.000 in. length. This makes 30126SK a practical service kit for restoring proper A/C system operation after compressor replacement on Chevrolet Blazer and GMC Jimmy platforms, as well as related S10 and Sonoma models.

This part cross-references 551280 and PK0287 for the same application.

What It Helps Address

• Loss of cooling after compressor replacement on R134a systems
• Restricted refrigerant flow caused by a worn or incorrect orifice tube
• Moisture control issues related to an aging accumulator
• Service mismatches when the system requires PAG 46 oil
• Fitment errors on Chevrolet Blazer, GMC Jimmy, and related GM applications

Installation Notes and Tips

Verify the vehicle’s A/C system uses an orifice tube expansion device and PAG 46 oil before installation. Confirm accumulator inlet and outlet fitting styles, and match the orifice tube color and diameter to the original system specification. Replace the compressor oil with the correct PAG 46 quantity for the repaired system and follow standard evacuation and recharge procedures for R134a service.

• Fits 1996-2005 Chevrolet Blazer, N/A
• Fits 1996-2004 Chevrolet S10, N/A
• Fits 1996-2005 GMC Jimmy, N/A
• Fits 1996-2004 GMC Sonoma, N/A
• Fits 1996-2001 Oldsmobile Bravada, N/A
• Fits 1997-2000 Isuzu Hombre, N/A
• Fits 2000-2002 GMC Jimmy, N/A

Quality Assurance

Four Seasons backs this A/C service kit with a limited lifetime warranty. The 30126SK is built to the listed system specifications for the covered Chevrolet, GMC, Oldsmobile, and Isuzu applications.