Four Seasons 83359 A/C Accumulator

Four Seasons 83359 A/C Accumulator

The Four Seasons Accumulator 83359 is a complete aluminum A/C accumulator for select GM heavy-duty trucks. It is built without a service port or switch port and uses P-nut inlet and outlet fittings for a direct-style replacement in the HVAC system.

Key Features

• Brand: Four Seasons Accumulator line
• Part number: 83359
• Complete unit construction
• Aluminum body for HVAC service applications
• Body diameter: 3.500 in. (89.000 mm)
• Body length: 8.250 in. (209.550 mm)
• P-nut inlet and outlet fittings
• No service port and no switch port
• Meets or exceeds OEM requirements
• Mounting hardware not included

Product Details

The Four Seasons 83359 accumulator is part of the Four Seasons Accumulator product line, built for A/C systems that require a direct replacement accumulator with the correct aluminum housing and fitting style. This unit is specified for select 2007-2010 Chevrolet Silverado 2500 HD and Silverado 3500 HD models, plus 2007-2010 GMC Sierra 2500 HD and Sierra 3500 HD applications, including 2007 Silverado 2500 HD Classic and Silverado 3500 Classic coverage where listed. The 83359 also cross-references Dorman HELP 83359 for the same application.

Compatible With 2010 Chevrolet Silverado 2500 HD, accumulator; 2010 Chevrolet Silverado 3500 HD, accumulator; 2010 GMC Sierra 2500 HD, accumulator; 2007-2010 GMC Sierra 3500 HD, w/o Ambulance Pkg.; accumulator; 2007-2009 Chevrolet Silverado 2500 HD, w/o Ambulance Pkg.; accumulator; 2007-2009 Chevrolet Silverado 3500 HD, w/o Ambulance Pkg.; accumulator; 2007-2009 GMC Sierra 2500 HD, w/o Ambulance Pkg.; accumulator; 2007 Chevrolet Silverado 2500 HD Classic, w/o Ambulance Pkg.; accumulator; 2007 Chevrolet Silverado 3500 Classic, w/o Ambulance Pkg.; accumulator.

Common Repair Uses

• Restores proper refrigerant storage and flow in the A/C circuit
• Addresses leaks at a worn or damaged accumulator housing
• Replaces a unit with incorrect or missing port configuration
• Helps correct fitment issues on Silverado and Sierra HD A/C repairs
• Supports service work after compressor or system component replacement

Installation Notes

Verify the inlet and outlet fitting style, body dimensions, and port configuration before installation. This accumulator is supplied without a service port and without a switch port, so confirm the vehicle’s original setup matches the part before ordering. Mounting hardware is not included, and the system should be evacuated, repaired, and recharged according to OEM service procedures.

Quality Assurance

Four Seasons lists this accumulator as meeting or exceeding OEM requirements, making it a direct-fit replacement choice for approved Silverado and Sierra HD applications. Confirm fitment by year, make, model, and A/C configuration before installation.