Denso 478-2029 A/C Receiver Drier

Denso A/C Receiver Drier for Mazda Miata

Denso New Receiver Drier 478-2029 is a direct-fit A/C receiver drier for 1994-1997 Mazda Miata applications. Built with an aluminum body and union nut design, it supports stable refrigerant flow while helping protect the air conditioning system from moisture-related damage.

Key Features

• Brand: Denso New Receiver Drier
• Part number: 478-2029
• Material: Aluminum
• Type: Union nut
• Body diameter: 60.325 mm
• Body length: 203.200 mm
• Male inlet fitting and male outlet fitting
• Fits 1994-1997 Mazda Miata, N/A

Product Details

The Denso 478-2029 receiver drier is part of Denso’s New Receiver Drier line, built to factory-level standards for A/C service work. In the Mazda Miata, the receiver drier helps manage liquid and vapor refrigerant flow and contains desiccant material that removes moisture from the system. That moisture control helps reduce internal corrosion and supports smoother A/C operation after major service.

This part cross-references Four Seasons 33585 for the same application. It also cross-references Mazda NA75-61-500 for the same application.

Common A/C Problems It Can Address

• Moisture contamination in the A/C system
• Reduced cooling performance after compressor or line service
• Internal corrosion caused by trapped humidity
• Refrigerant flow instability in the receiver drier circuit
• Premature wear from contaminated refrigerant circulation

Installation Notes

Replace the receiver drier during major A/C service, especially when the system has been opened for repairs. Verify fitment by matching the 1994-1997 Mazda Miata application and checking the male inlet and outlet fittings, aluminum body dimensions, and union nut configuration before installation.

Quality Assurance

Denso manufactures this receiver drier to stringent factory standards as part of its First Time Fit component line, with an emphasis on OE-style fit, refrigerant control, and moisture protection for the A/C system.