Four Seasons 33396 A/C Receiver Drier

Four Seasons 33396 Filter Drier

Four Seasons 33396 is a steel A/C receiver drier built for HVAC service on select Mercedes-Benz diesel applications. It uses a desiccant charge to help manage moisture in the refrigerant circuit and includes a sight glass, fuse plug, and switch port for system monitoring and service integration.

Key Features

• Steel filter drier construction for A/C system use
• Male insert O-ring inlet and outlet connections
• Desiccant-filled design to absorb moisture in the refrigerant path
• Sight glass included for visual system inspection
• Fuse plug included
• Switch port included; service port not included
• Meets or exceeds OEM requirements
• New replacement part for HVAC repair

Product Details

This Four Seasons filter drier, part number 33396, is a direct-fit style A/C receiver drier for Mercedes-Benz 300D and Mercedes-Benz 300TD applications. The steel body measures 3.000 inches in diameter and 6.500 inches in overall length, with 3/8-inch inlet and outlet fittings and male insert O-ring connections. It also includes a green O-ring seal set and a sight glass for added service visibility. Four Seasons 33396 is a practical replacement when restoring refrigerant filtration and moisture control in older HVAC systems.

This part cross-references Gates 27452 for the same application.

Common Repair Uses

• Restoring refrigerant moisture control in an aging A/C system
• Replacing a leaking or corroded receiver drier housing
• Addressing poor cooling caused by contaminated desiccant media
• Repairing a system that needs a new sight glass or fuse plug assembly
• Servicing Mercedes-Benz 300D and 300TD HVAC components

Installation Notes

Verify inlet and outlet sizing, O-ring style, and switch-port requirements before installation. Replace seals during service, evacuate the system, and recharge with the correct refrigerant and oil specification after the repair. Confirm the receiver drier is mounted securely and that all connections are clean before tightening.

Quality Assurance

Four Seasons 33396 is a new replacement filter drier that meets or exceeds OEM requirements for the listed Mercedes-Benz applications. It is built as a steel A/C receiver drier for HVAC service and replacement use.

Fits 1977-1985 Mercedes-Benz 300D, N/A. Fits 1979-1985 Mercedes-Benz 300TD, N/A.