Four Seasons 33186 A/C Accumulator

Four Seasons 33186 A/C Accumulator

The Four Seasons 33186 accumulator is a complete aluminum A/C accumulator built for select GM compact cars and related applications that use an R12 system configuration. It is designed to manage refrigerant flow and moisture control in the air conditioning circuit, with OE-style fitment details that matter during service on a Chevrolet Cavalier, Pontiac Sunbird, Buick Skylark, and similar vehicles.

Four Seasons Accumulator line components are built for direct replacement service, and this unit follows the original-style inlet, outlet, and switch-port layout used on the listed applications. If you are replacing a leaking or restricted accumulator on a 1985-1994 Chevrolet Cavalier or 1985-1994 Pontiac Sunbird application, part number 33186 provides the correct service path for the system.

Key Features

• Brand: Four Seasons
• Part number: 33186
• Type: A/C accumulator, complete unit
• Material: aluminum construction
• Inlet fitting: female O-ring, 3/4 in. / 19.050 mm
• Outlet fitting: male insert O-ring, 3/4 in. / 19.050 mm
• Switch port: included; service port: not included
• Meets or exceeds OEM requirements
• Direct-fit style for listed GM applications

Detailed Description

The Four Seasons 33186 A/C accumulator is engineered for vehicles that use a receiver-drier style accumulator in the HVAC system. Its aluminum body measures 3.500 inches in diameter and 9.000 inches in length, with OE-matched O-ring connections and a switch port for the original system layout. This makes it a practical replacement for service work on Chevrolet Cavalier and Pontiac Sunbird models, along with other listed Buick, Oldsmobile, Cadillac, and Pontiac applications.

This part cross-references UAC RD6068C for the same application. For buyers searching by vehicle, this accumulator is a fitment-based replacement for 1985-1993 Chevrolet Cavalier, 1988-1993 Pontiac Sunbird, 1986-1991 Buick Skylark, and related models listed below.

What It Is Used For

• Replacing a leaking or corroded A/C accumulator
• Restoring refrigerant separation and moisture control in the HVAC system
• Addressing poor cooling caused by a restricted or contaminated accumulator
• Servicing an R12-era air conditioning system on listed GM vehicles
• Replacing a damaged switch-port accumulator during A/C repair

Fitment

• Fits 1994 Chevrolet Cavalier, N/A, w/ R12; Accumulator
• Fits 1994 Pontiac Sunbird, N/A, w/ R12; Accumulator
• Fits 1985-1993 Chevrolet Cavalier, N/A, Accumulator
• Fits 1988-1993 Pontiac Sunbird, N/A, Accumulator
• Fits 1986 Pontiac Sunbird, N/A, Accumulator
• Fits 1986-1991 Buick Skylark, N/A, Accumulator
• Fits 1988-1991 Oldsmobile Cutlass Calais, N/A, Accumulator
• Fits 1985-1991 Pontiac Grand Am, N/A, Accumulator
• Fits 1985-1989 Buick Skyhawk, N/A, Accumulator
• Fits 1985-1988 Cadillac Cimarron, N/A, Accumulator
• Fits 1985-1988 Oldsmobile Firenza, N/A, Accumulator
• Fits 1985-1987 Oldsmobile Calais, N/A, Accumulator
• Fits 1985 Buick Century, N/A, Accumulator
• Fits 1984-1985 Chevrolet Celebrity, N/A, Accumulator
• Fits 1985 Oldsmobile Cutlass Ciera, N/A, Accumulator
• Fits 1985 Pontiac 6000, N/A, Accumulator
• Fits 1985 Pontiac J2000 Sunbird, N/A, Accumulator

Installation Notes and Tips

Verify the inlet and outlet fitting style, switch-port configuration, and system refrigerant type before installation. Replace the O-rings with the correct green O-rings specified for this unit, inspect the surrounding A/C lines for wear, and confirm that the mounting points align with the vehicle’s original accumulator location. Mounting hardware is not included.

Quality Assurance

This Four Seasons accumulator is listed as meeting or exceeding OEM requirements for the specified applications. Use the vehicle fitment details and connection specifications to confirm the correct replacement before service on your Chevrolet Cavalier, Pontiac Sunbird, or other listed GM model.