Four Seasons 33221 A/C Accumulator

Four Seasons 33221 A/C Accumulator Overview

The Four Seasons 33221 A/C accumulator is a complete aluminum replacement unit for HVAC systems that use a female O-ring inlet and outlet connection. Built to meet or exceed OEM requirements, it is a direct-fit service part for restoring proper refrigerant management in the air conditioning circuit.

For drivers searching for an A/C accumulator for Honda Civic, Toyota Corolla, or similar vehicle applications, Four Seasons 33221 provides the connection style and dimensions needed for a precise HVAC repair. This Four Seasons accumulator is also referenced under part number 33221 for cross-checking during replacement part selection.

Key Features

• Four Seasons Accumulator line replacement part, part number 33221
• Complete unit construction in aluminum
• Female O-ring inlet and outlet fittings
• Body diameter: 3.500 in. / 88.900 mm
• Body length: 9.000 in. / 228.600 mm
• Inlet and outlet size: 3/4 in. / 19.050 mm
• Without service port and without switch port
• Meets or exceeds OEM specifications
• Uses green O-rings, A number 24612
• Mounting hardware not included

Product Details

The accumulator is a key HVAC component in systems that use an accumulator-style layout, helping manage refrigerant flow and protect the compressor from liquid refrigerant return. Four Seasons 33221 is built as a complete aluminum unit with female O-ring connections for straightforward replacement in the correct application. Its dimensions, inlet/outlet sizing, and no-port configuration make it a practical choice when replacing a worn or leaking A/C accumulator on vehicles such as Honda Civic and Toyota Corolla applications that use this style of HVAC hardware.

This part cross-references Gates 7409 for the same application.

Common Problems This Part Can Address

• Refrigerant leaks at the accumulator body or O-ring connections
• Reduced A/C performance from a failing accumulator
• Moisture control issues in the HVAC system after component wear
• Compressor protection concerns caused by a damaged accumulator
• Service replacement needs after A/C system repair

Installation Notes

• Verify inlet and outlet fitting size before installation.
• Confirm the vehicle uses a female O-ring accumulator configuration without a service port.
• Replace sealing O-rings during installation and lubricate them with the correct refrigerant oil.
• Inspect the surrounding A/C lines and system components for contamination or damage before reassembly.
• Mounting hardware is not included, so reuse or source the correct hardware as needed.

Quality Assurance

Four Seasons 33221 is manufactured to meet or exceed OEM specifications for fit and function. The Four Seasons Accumulator line is built for direct replacement use in automotive HVAC service, with application-specific dimensions and connection types that support accurate part matching.