Four Seasons 33115 A/C Accumulator

Four Seasons 33115 A/C Accumulator

The Four Seasons 33115 accumulator is a complete aluminum A/C accumulator for vehicles that use a female O-ring inlet and male insert O-ring outlet. It meets or exceeds OEM requirements and includes a switch port for systems that need that connection point. This part number is a direct-fit style replacement for select Chevrolet Corvette and Cadillac Seville applications.

Key Features

• Brand: Four Seasons Accumulator line
• Part number: 33115
• Complete unit construction in aluminum
• Female O-ring inlet and male insert O-ring outlet
• Switch port included; no service port
• Meets or exceeds OEM specifications
• Includes green O-ring seals for the inlet and outlet connections

Product Details

Four Seasons 33115 is an A/C accumulator used in the HVAC system to manage refrigerant flow and help protect the compressor from liquid refrigerant return. The accumulator body measures 3.500 inches in diameter and 9.000 inches in length, with 3/4-inch inlet and outlet fittings. Built from aluminum, this accumulator is designed for select 1988-1993 Chevrolet Corvette and 1985 Cadillac Seville models, making it a practical OE-style replacement when servicing the air conditioning system. The Four Seasons 33115 part number is also referenced in aftermarket cross listings for the same application.

Vehicle Fitment

• Fits 1988-1993 Chevrolet Corvette, N/A
• Fits 1985 Cadillac Seville, N/A

Common Repair Uses

• Restores proper refrigerant storage and flow control in the A/C system
• Addresses compressor protection concerns caused by liquid refrigerant return
• Replaces a leaking, corroded, or damaged accumulator housing
• Helps correct poor cooling performance tied to accumulator failure
• Supports repair of worn inlet or outlet seal connections

Installation Notes

Verify the inlet and outlet fitting style, switch port requirement, and body dimensions before installation. Replace the O-rings at the connections during service and confirm the system is properly evacuated and recharged after installation. Mounting hardware is not included, so reuse or source the required hardware separately if needed.

Quality Assurance

This Four Seasons accumulator is built to meet or exceed OEM specifications for the listed applications. It is engineered as a direct replacement for the original-style A/C accumulator used on the Chevrolet Corvette and Cadillac Seville fitments shown above.