Four Seasons 4138NK A/C Compressor and Component Kit - Front

Overview of Four Seasons Complete A/C Kit 4138NK

The Four Seasons Complete A/C Kit 4138NK is designed to restore the air conditioning system in select Cadillac, Chevrolet, and GMC trucks and SUVs. This comprehensive kit includes a new compressor and essential components to ensure reliable A/C performance in vehicles like the Chevrolet Silverado and GMC Sierra.

• Includes new compressor (part 78377) and accumulator (part 83208)
• Compressor oil included for proper lubrication
• Orifice tube with 0.072-inch diameter, gray porous style
• Receiver drier/accumulator with P-nut inlet and outlet fittings
• Compatible with R134a refrigerant systems
• Gaskets and seals included for a complete installation
• Limited lifetime warranty for quality assurance

Detailed Product Description

This Four Seasons Complete A/C Kit 4138NK provides a full replacement solution for the air conditioning system, featuring a new compressor (part number 78377) and a matched accumulator (83208). The kit includes compressor oil to maintain optimal lubrication and extend component life. The orifice tube, a critical expansion device, is a gray porous style with a 0.072-inch diameter, designed to regulate refrigerant flow precisely. The receiver drier/accumulator measures 3.5 inches in diameter and 8 inches in length, equipped with P-nut fittings on both inlet and outlet for secure connections. This kit is engineered for vehicles using R134a refrigerant, ensuring compatibility with the air conditioning systems in Cadillac Escalade, Chevrolet Avalanche, and GMC Yukon models.

About the Complete A/C Kit Product Line

The Four Seasons Complete A/C Kit product line offers a comprehensive approach to A/C system repair by including all necessary components in one package. This reduces the need to source parts separately and helps ensure system compatibility. The 4138NK kit exemplifies this approach by combining a new compressor with essential parts like the accumulator, orifice tube, and seals, streamlining the repair process for technicians working on select GM trucks and SUVs.

Common Applications and Issues Addressed

• Replacement of worn or failed A/C compressors in Chevrolet Silverado 1500 and GMC Sierra 2500
• Resolving refrigerant leaks due to damaged gaskets or seals
• Improving cooling efficiency by replacing clogged orifice tubes
• Addressing moisture contamination with a new receiver drier/accumulator
• Restoring proper refrigerant flow and pressure in Cadillac Escalade ESV systems

Installation Notes and Tips

• Ensure system is evacuated and depressurized before installation
• Use the included compressor oil to lubricate the new compressor properly
• Replace all gaskets and seals to prevent leaks
• Verify compatibility with vehicle refrigerant type R134a
• Follow manufacturer torque specifications for fittings and mounting hardware

Quality Assurance and Warranty

The Four Seasons Complete A/C Kit 4138NK is backed by a limited lifetime warranty, providing confidence in the durability and performance of the included components. Each part is manufactured to meet or exceed OEM standards, ensuring reliable operation in Cadillac, Chevrolet, and GMC vehicles such as the Tahoe, Yukon XL 2500, and Suburban 1500.