Four Seasons 83155 A/C Accumulator

Four Seasons 83155 A/C Accumulator

Four Seasons 83155 is a complete aluminum A/C accumulator for select GM full-size SUVs and heavy-duty trucks. It features a service port, P-nut inlet and outlet fittings, and OE-style dimensions for direct replacement service on the listed applications.

Key Features

• Brand: Four Seasons Accumulator line
• Part number: 83155
• Complete unit construction in aluminum
• Body diameter: 3.500 in. / 88.900 mm
• Body length: 9.250 in. / 234.950 mm
• Inlet fitting type: P-nut fitting, 5/8 in.
• Outlet fitting type: P-nut fitting, 3/4 in.
• Includes service port; no switch port
• Meets or exceeds OEM requirements
• Mounting hardware not included

Product Details

The Four Seasons Accumulator line is built for HVAC service work where correct fit, port style, and system compatibility matter. This Four Seasons 83155 accumulator is specified for vehicles with rear A/C or ambulance package configurations on the listed Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, and GMC Yukon applications. It cross-references UAC RD11128C for the same application.

Use this accumulator on 2010-2014 Cadillac Escalade and Escalade ESV applications, 2010-2014 Chevrolet Tahoe and Silverado HD applications with the noted rear A/C or ambulance package requirements, and 2010-2013 GMC Yukon, Yukon XL, Sierra, and related models shown in the fitment data. The aluminum body and OE-style P-nut connections support proper integration with the factory A/C plumbing on those vehicles.

What It Helps Fix

• Restricted or contaminated A/C accumulator service on the listed GM vehicles
• Loss of proper refrigerant storage and moisture separation in the HVAC system
• Leaking or damaged accumulator housing or fittings
• Service issues related to incorrect port style or dimensions
• HVAC repair needs on Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon applications

Installation Notes and Tips

• Verify the vehicle’s exact year, model, and HVAC configuration before ordering.
• Confirm rear A/C, ATC, or ambulance package requirements where noted in fitment.
• Replace O-rings and evacuate/recharge the system according to OEM service procedures.
• Check that the service port and P-nut fittings match the original assembly.
• Mounting hardware is not included.

Quality Assurance

Four Seasons 83155 is listed as meeting or exceeding OEM requirements for the specified applications. Its OE-style construction and fitment-focused design make it a direct replacement choice for service on compatible Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, and GMC Yukon HVAC systems.