Denso 478-2071 A/C Receiver Drier

Denso New Receiver Drier 478-2071

Denso New Receiver Drier 478-2071 is a block union A/C receiver drier built for Mercedes-Benz HVAC systems that need moisture control and stable refrigerant flow. It is a direct-fit service part for select GL, ML, and R-Class applications, including Mercedes-Benz GL350, GL450, GL550, R350, and ML350 models.

Key Features

• Aluminum body with a block union design
• Female inlet and female outlet fittings
• Body diameter: 45.000
• Body length: 402.000
• Desiccant package helps isolate moisture from the A/C system
• Built to Denso First Time Fit standards

Product Details

The Denso 478-2071 receiver drier manages liquid and vapor refrigerant flow in the air conditioning circuit while helping protect internal components from moisture-related corrosion. In A/C service, replacing the receiver drier is a standard step when major system work is performed, especially after compressor replacement, line opening, or contamination concerns. This part cross-references Mercedes-Benz 251 835 00 47 for the same application.

Compatible With Mercedes-Benz GL350, GL450, GL550, R350, ML350, ML450, ML550, ML63 AMG, GL320, ML320, R320, ML500, R500, and R63 AMG applications across the listed model years. If you are searching for a Mercedes-Benz receiver drier 478-2071 or a Denso A/C receiver drier for GL450 and ML350 service, this part matches the specified fitment data.

What It Helps Address

• Moisture buildup inside the A/C system
• Corrosion risk in internal HVAC components
• Restricted refrigerant flow after system service
• Surging or unstable A/C operation caused by poor refrigerant management
• Need for a replacement receiver drier during major A/C repair

Installation Notes

Replace the receiver drier whenever the A/C system has been opened for major service, and verify all fittings, seals, and refrigerant charge procedures before returning the vehicle to service. Confirm the block union layout, aluminum housing, and female inlet/outlet configuration against the original part before installation. Use the vehicle-specific fitment list to confirm application on Mercedes-Benz GL, ML, and R-Class models.

Quality Assurance

Denso manufactures this receiver drier to factory-level standards under its First Time Fit line, with an emphasis on OE-style performance and system efficiency. The desiccant and housing design are intended to support reliable A/C operation in the specified Mercedes-Benz applications.