Four Seasons 198381 A/C Compressor

Overview of Four Seasons New Compressor 198381

The Four Seasons New Compressor 198381 is designed for reliable air conditioning performance in Chevrolet and GMC trucks. This A/C compressor is engineered to meet the specific needs of models like the Silverado 1500 and Sierra 2500, ensuring efficient cooling with compatible refrigerants.

• Compatible with R-134a and R-1234yf refrigerants
• Includes oil for optimal lubrication
• Features a 4-groove serpentine pulley
• Pin-type electrical terminal with 12V coil voltage
• Includes clutch assembly with a maximum diameter of 4.31 inches
• 3-ear mounting type for secure installation
• Designed as a Nippondenso 7sas18a compressor type
• Includes O-rings for proper sealing

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to restore factory-level A/C performance. The New Compressor 198381 is part of this line, providing a complete assembly including the clutch and oil fill, which simplifies installation and reduces the need for additional parts. This product line focuses on delivering reliable operation for HVAC systems in specific vehicle applications.

Technical Description and Features

This Four Seasons A/C compressor (part number 198381) is engineered for Chevrolet and GMC trucks such as the Cheyenne, Sierra, and Silverado 1500/2500 models. It supports both R-134a and R-1234yf refrigerants, making it compatible with modern and legacy A/C systems. The compressor includes a 4-groove serpentine pulley with a diameter of 4.31 inches, matching OEM specifications for smooth belt operation. The clutch assembly is included, featuring a 4.31-inch maximum diameter and a 0.920-inch distance from clutch to mounting flange, ensuring proper fitment. The pin-type terminal and 12V coil voltage are designed for straightforward electrical connections. This compressor uses a 3-ear mounting system and comes with necessary O-rings (part numbers 24402 and 24404) for sealing, although mounting hardware is not included. The coil has a single wire lead positioned at the 1 o'clock clock position, and the ECV harness connector is compatible with compressor se36f and vehicle se36m connectors.

Common Applications and Issues Addressed

• Restores A/C cooling in Chevrolet Silverado 1500 and 2500 trucks
• Replaces failing compressors in GMC Sierra and Cheyenne models
• Solves issues related to compressor clutch failure or pulley wear
• Addresses refrigerant leaks due to worn seals or O-rings
• Improves system efficiency when original compressor performance declines

Installation Notes and Tips

• May require use of original equipment (OE) manifold for proper fitment
• Mounting hardware is not included; reuse existing hardware or source separately
• Ensure system is properly evacuated and recharged with compatible refrigerant (R-134a or R-1234yf)
• Verify electrical connections match pin-type terminal and coil specifications
• Check pulley alignment and belt condition during installation

Quality Assurance and Warranty

The Four Seasons New Compressor 198381 is a new, direct replacement part manufactured to meet OEM standards. It includes factory-installed oil and O-rings to ensure proper sealing and lubrication. While mounting hardware is not included, the compressor is designed for durability and reliable operation in specified Chevrolet and GMC truck models. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.