Denso 478-2001 A/C Receiver Drier

Denso New Receiver Drier 478-2001

Denso 478-2001 is a New Receiver Drier for A/C systems that rely on a block union, aluminum housing, and female inlet and outlet fittings. It is built to manage refrigerant flow while helping keep moisture out of the system, supporting stable cooling performance in Porsche, Suzuki, Chevrolet, and Geo applications.

The Denso New Receiver Drier line focuses on factory-style fit and system protection for major A/C service. This receiver drier uses a desiccant package to help isolate moisture that can lead to internal corrosion, leaks, and premature HVAC wear. For Porsche 911, Boxster, Cayman, and 718 models, as well as Suzuki Esteem, Swift, and Samurai applications, the 478-2001 supports OE-style service replacement.

• Aluminum receiver drier with block union design
• Female inlet and female outlet fittings
• Body diameter: 63.500 mm
• Body length: 165.100 mm
• Helps regulate liquid and vapor refrigerant flow
• Includes desiccant protection for moisture control

Fitment Coverage

• Fits 2017-2019 Porsche 718 Boxster, N/A
• Fits 2017-2019 Porsche 718 Cayman, N/A
• Fits 1993-2019 Porsche 911, N/A
• Fits 2014-2016 Porsche Cayman, N/A
• Fits 2006-2012 Porsche Cayman, N/A
• Fits 2015 Porsche 918 Spyder, N/A
• Fits 1997-2015 Porsche Boxster, N/A
• Fits 1995-2002 Suzuki Esteem, N/A
• Fits 1998-2001 Chevrolet Metro, N/A
• Fits 1995-2001 Suzuki Swift, N/A
• Fits 1998 Chevrolet Tracker, N/A
• Fits 1995-1997 Geo Metro, N/A
• Fits 1994-1997 Geo Tracker, N/A
• Fits 1993-1995 Porsche 928, N/A
• Fits 1993-1995 Porsche 968, N/A
• Fits 1990-1995 Suzuki Samurai, N/A

What This Part Helps Address

• Moisture contamination inside the A/C system
• Corrosion-related damage to internal HVAC components
• Reduced cooling performance from restricted refrigerant flow
• Surging or unstable A/C operation after service
• Leaks associated with worn or contaminated receiver driers

Installation Notes

Replace the receiver drier during major A/C service, especially when the system has been opened for repair. Verify the block union layout, female fittings, and body dimensions before installation. For listed Suzuki applications, OE-specified O-rings are noted in fitment data; follow vehicle-specific service procedures and refrigerant handling requirements.

Quality Assurance

Denso manufactures this receiver drier to factory-level standards as part of its First Time Fit component line. This part cross-references Porsche 944 573 143 01 and Four Seasons 33592 for the same application.