Four Seasons 33993 A/C Receiver Drier

Four Seasons 33993 Filter Drier Overview

The Four Seasons 33993 A/C receiver drier is a steel filter drier built for HVAC service where moisture and contamination control matter. It uses a male insert O-ring inlet and outlet, includes a service port, and meets or exceeds OEM requirements for a direct-fit replacement in the right application.

For technicians searching for an A/C receiver drier for Honda Civic or Toyota Corolla service work, this Four Seasons filter drier provides the core connections and construction needed for a clean refrigerant circuit. The Four Seasons 33993 is also cross-referenced to Carlson 7180 for the same application.

Key Features

• Steel filter drier construction
• Male insert O-ring inlet and outlet fittings
• 3/8 in. inlet and outlet size
• Service port included
• Desiccant included; desiccant is not replaceable
• Gaskets/seals included
• No mounting bracket, switch port, or sight glass
• Meets or exceeds OEM specifications

Product Details

Four Seasons Filter Drier line parts are built for A/C system moisture removal and refrigerant filtration. Part number 33993 uses a steel body measuring 3.000 in. in diameter and 8.500 in. in overall length, with male insert O-ring connectors on both inlet and outlet sides. The unit is configured as a washer-not-included style, with no fuse plug and no bracket, making it a straightforward replacement for serviceable HVAC layouts that call for this connection style.

This receiver drier is a practical choice when replacing a worn or contaminated A/C receiver drier on vehicles such as Honda Civic and Toyota Corolla applications that use the same fitting and service-port configuration. If you are sourcing Four Seasons 33993 for A/C repair, verify the inlet and outlet dimensions, body length, and port layout against the original part before installation.

Common Problems This Part Can Address

• Moisture buildup in the A/C refrigerant circuit
• Debris contamination after compressor or line service
• Restricted refrigerant flow caused by a saturated drier
• Poor cooling performance from a compromised receiver drier
• Service-port replacement needs during HVAC repair

Installation Notes and Tips

• Replace the receiver drier whenever the A/C system has been opened for major service.
• Confirm male insert O-ring fitment, 3/8 in. line size, and service-port location before installation.
• Inspect and replace O-rings as needed during reassembly.
• Evacuate and recharge the system according to the vehicle service procedure after installation.
• Check the original part number and vehicle-specific HVAC layout before ordering Four Seasons 33993.

Quality Assurance

This Four Seasons receiver drier is built to meet or exceed OEM requirements for the specified application. The steel construction, included desiccant, and sealed connection points support proper A/C system service when installed in the correct vehicle fitment.