Four Seasons 33172 A/C Accumulator

Four Seasons 33172 A/C Accumulator

Four Seasons 33172 is a complete aluminum A/C accumulator built for OE-style service on select GM applications. It uses female O-ring inlet and male insert O-ring outlet connections, includes a switch port, and meets or exceeds OEM requirements for a direct-fit replacement.

Compatible With 1987-1988 Buick Century, 1988 Buick LeSabre, 1987-1988 Oldsmobile Cutlass Ciera, and 1987-1988 Oldsmobile Cutlass Cruiser. This Four Seasons accumulator 33172 is a practical choice when servicing the air conditioning system on these vehicles.

Key Features

• Brand: Four Seasons Accumulator line
• Part number: 33172
• 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
• Body diameter: 3.500 in. / 88.900 mm
• Body length: 9.000 in. / 228.600 mm
• Meets or exceeds OEM specifications
• Mounting hardware not included
• Uses green O-ring seals: [24650] and [24612]

Product Details

The Four Seasons Accumulator product line focuses on replacement HVAC components built for serviceability and fit. On this application, the 33172 accumulator helps manage refrigerant flow and moisture control in the A/C system while matching the original connection style used on the vehicle. The aluminum body and OE-style port layout support a clean replacement on 1987-1988 Buick Century, 1988 Buick LeSabre, and 1987-1988 Oldsmobile Cutlass Ciera and Cutlass Cruiser models.

This part cross-references UAC RD6421C and Remy 16331 for the same application.

Common Repair Uses

• Replacing a leaking or corroded A/C accumulator
• Restoring proper refrigerant storage and moisture separation
• Addressing damaged O-ring sealing surfaces at the inlet or outlet
• Repairing a failed switch-port-equipped accumulator assembly
• Servicing weak or inconsistent air conditioning performance

Installation Notes and Tips

Verify the inlet and outlet fitting style before installation to confirm OE-style alignment. Replace the specified O-rings during service and inspect the mating lines for wear, contamination, or corrosion. Because mounting hardware is not included, reuse or source the required hardware separately as needed. Evacuate and recharge the system according to the vehicle service procedure after installation.

Quality Assurance

Four Seasons 33172 is built to meet or exceed OEM specifications for the listed applications. Its aluminum construction, OE-style fittings, and application-specific switch port support accurate replacement service on compatible Buick and Oldsmobile HVAC systems.