Four Seasons 33985 A/C Receiver Drier

Four Seasons 33985 Filter Drier Overview

Four Seasons 33985 is a steel A/C receiver drier built for HVAC systems that need moisture control and refrigerant filtration. It includes a sight glass and service port, and it meets or exceeds OEM requirements for direct replacement use on select Chevrolet P30 and GMC P3500 applications.

The Four Seasons Filter Drier line focuses on dependable refrigerant system protection with OE-style construction and application-specific fitment. This 33985 receiver drier uses a male insert O-ring connection style, a steel body, and desiccant media to help maintain clean, dry refrigerant flow in the air conditioning circuit.

Key Features

• Steel A/C receiver drier construction
• Desiccant included for moisture absorption
• Male insert O-ring inlet and outlet fittings
• Sight glass included for system inspection
• Service port included
• Meets or exceeds OEM specifications
• New replacement part
• Gaskets and seals included

Detailed Description

Four Seasons 33985 is a filter drier designed for automotive air conditioning systems that require moisture removal and refrigerant filtration. The steel body measures 2.500 inches in diameter and 6.500 inches in length, with 0.375-inch inlet and outlet dimensions. Its male insert O-ring connector design supports OE-style service on the listed Chevrolet P30 and GMC P3500 applications, including 1994-1999 Chevrolet P30 and 1997-1999 GMC P3500 with R134a.

This part cross-references Monroe Shocks & Struts 172962 for the same application. It also cross-references UAC RD9971C for the same application. The Four Seasons 33985 part number is also referenced by several OE and aftermarket numbers, making it a practical replacement choice when servicing the A/C system on Chevrolet P30 and GMC P3500 vehicles.

Common Problems This Part Addresses

• Moisture contamination inside the A/C system
• Restricted refrigerant flow caused by debris or contamination
• Reduced cooling performance from a saturated desiccant element
• Service issues during receiver drier replacement on R134a systems
• Need for an OE-style replacement receiver drier on Chevrolet P30 and GMC P3500 applications

Installation Notes and Tips

Install Four Seasons 33985 only on the listed applications: Fits 1994-1999 Chevrolet P30, N/A. Fits 1997-1999 GMC P3500, N/A. Verify the male insert O-ring connection style, inlet and outlet dimensions, and service port configuration before installation. Replace O-rings and seals as needed during A/C service, and evacuate and recharge the system according to the vehicle service procedure after installation.

Quality Assurance

Four Seasons identifies this receiver drier as a new part that meets or exceeds OEM specifications. The steel construction, included desiccant, and OE-style connector design support consistent service replacement for the specified Chevrolet P30 and GMC P3500 applications.