Four Seasons 83207 A/C Accumulator

Four Seasons 83207 A/C Accumulator

The Four Seasons Accumulator line delivers OE-style A/C service parts for vehicles that need precise refrigerant management and moisture control. This Four Seasons 83207 A/C accumulator is a complete aluminum unit with switch port provisions and P-nut fittings for a direct replacement on select Chevrolet Silverado 1500 and GMC Sierra 1500 applications.

Key Features

• Four Seasons Accumulator product line
• Part number 83207
• Complete unit construction in aluminum
• Switch port included; no service port
• P-nut inlet and outlet fittings
• Meets or exceeds OEM requirements
• Uses OE-style sealing components with Green O-Ring and slimline washer seals
• Compatible with select Silverado 1500 and Sierra 1500 A/C systems

Product Details

This A/C accumulator is built for HVAC systems that use an accumulator/receiver drier style component to manage refrigerant flow and help protect the compressor from liquid refrigerant. The aluminum body measures 3.500 inches in diameter and 8.000 inches in length, with a 3/4-inch inlet and 3/4-inch outlet. The outlet thread size is M8x1.500, and the switch port diameter is 0.472 inch (12.000 mm). Four Seasons 83207 is engineered as an OE-level replacement for service work on 1999-2007 Chevrolet Silverado 1500 and GMC Sierra 1500 platforms, including 2006-2007 Silverado 1500 and Sierra 1500 models with no service port.

This part cross-references Dorman - HELP 83207 and UAC RD1800C for the same application.

What It Helps Address

• Moisture buildup in the A/C system
• Refrigerant flow issues caused by a worn accumulator
• Compressor protection concerns related to liquid refrigerant
• Leaks at aging accumulator seals or fittings
• Service replacement needs on Silverado 1500 and Sierra 1500 HVAC systems

Installation Notes

Verify the vehicle’s A/C configuration before ordering, especially service port and switch-port requirements. This unit uses P-nut fittings and includes OE-style sealing hardware references in the catalog data, so inspect mating surfaces, replace damaged seals, and confirm proper thread engagement during installation. Mounting hardware is not included. After installation, evacuate and recharge the system according to factory service procedures and check for leaks.

Quality Assurance

Four Seasons lists this accumulator as meeting or exceeding OEM specifications, making it a direct-fit service part for the listed applications. Compatible with 1999-2005 Chevrolet Silverado 1500, 2006-2007 Chevrolet Silverado 1500, 2007 Chevrolet Silverado 1500 Classic, 1999-2005 GMC Sierra 1500, and 2006-2007 GMC Sierra 1500, this part number 83207 supports accurate A/C system restoration on the vehicles shown in the fitment data.