Four Seasons 33485 A/C Receiver Drier

Four Seasons 33485 A/C Receiver Drier

The Four Seasons 33485 filter drier is a steel A/C receiver drier built for HVAC service on select Mazda trucks. It uses a desiccant charge to help manage moisture in the refrigerant circuit and features male insert O-ring inlet and outlet connections for a direct-style replacement.

Compatible with 1986-1993 Mazda B-series applications, including Mazda B2000, Mazda B2200, and Mazda B2600, this Four Seasons 33485 receiver drier is a practical choice when servicing an aging air conditioning system. It meets or exceeds OEM requirements and is supplied as a new component.

Key Features

• Steel A/C receiver drier construction
• Desiccant-equipped filter drier design
• Male insert O-ring inlet and outlet fittings
• 3/8 in. inlet and outlet connections
• Switch port included; service port and sight glass not included
• Body diameter: 2.500 in.; body length: 8.000 in.
• Meets or exceeds OEM specifications
• New replacement part from Four Seasons

Product Details

Four Seasons Filter Drier line parts are built for HVAC repair work where moisture control and refrigerant cleanliness matter. Part number 33485 uses a steel body with a non-replaceable desiccant element, green O-ring seals, and a stud-style mounting arrangement. The unit is configured without a moisture indicator window, fuse plug, PRV, or service port, keeping the design focused on standard receiver drier replacement needs. This part cross-references UAC RD1312C for the same application.

Common Problems This Part Can Address

• Moisture contamination in the A/C refrigerant circuit
• Reduced cooling performance from a saturated receiver drier
• System service needs after compressor or line repairs
• Degraded refrigerant filtration in older Mazda B-series HVAC systems
• Leak concerns at worn O-ring connection points

Installation Notes

Replace the receiver drier whenever the A/C system has been opened for service, especially after compressor failure or major line replacement. Verify inlet and outlet orientation, confirm the 3/8 in. male insert O-ring connections, and inspect mating seals before assembly. Proper evacuation and recharge procedures are important after installation to protect the desiccant and restore system performance.

Quality Assurance

Four Seasons 33485 is a new replacement receiver drier that meets or exceeds OEM specifications for the listed Mazda B2000, B2200, and B2600 applications. It is built as a direct-fit HVAC service component for select 1986-1993 Mazda trucks.