Denso 478-2026 A/C Receiver Drier - Front or Rear

Denso New Receiver Drier 478-2026

Denso New Receiver Drier 478-2026 is an aluminum A/C receiver drier built for Toyota HVAC service where moisture control and refrigerant flow management matter. It is used in front and rear air conditioning systems on select Toyota Sequoia, Sienna, and Previa applications.

Key Features

• Aluminum body construction for OE-style HVAC service
• Block union design with female inlet and outlet fittings
• Desiccant package helps isolate moisture from the A/C system
• Supports smooth refrigerant flow for stable A/C operation
• Direct replacement format for select Toyota front and rear A/C layouts
• Part number 478-2026 for ordering and catalog matching

Product Details

Denso’s New Receiver Drier line is built to factory standards for A/C systems that require moisture removal and refrigerant conditioning after service. In Toyota Sequoia, Toyota Sienna, and Toyota Previa applications, the receiver drier helps protect internal HVAC components from corrosion while supporting consistent cooling performance. This part number 478-2026 is a practical OE-style replacement for vehicles that call for a block union receiver drier with female fittings.

This part cross-references Four Seasons 83018 for the same application.

What It Helps Address

• Moisture contamination inside the A/C system
• Corrosion risk in HVAC components after service
• Unstable cooling caused by poor refrigerant conditioning
• Reduced A/C output in Toyota Sequoia, Toyota Sienna, and Toyota Previa systems
• Service-related wear in front or rear A/C circuits

Installation Notes

Fits 2001-2007 Toyota Sequoia, rear; rear A/C expansion valve application. Fits 2001-2007 Toyota Sequoia, front; front A/C with OE-specified O-rings included in the vehicle application notes. Fits 1998-2003 Toyota Sienna, rear; rear A/C with OE-specified O-rings included in the vehicle application notes. Fits 1998-2003 Toyota Sienna, front; front A/C expansion valve application. Fits 1994-1997 Toyota Previa, N/A; O-rings included to OE specifications for proper fitting. Verify the system configuration, fitting style, and service requirements before installation. Replace the receiver drier during major A/C service and evacuate/recharge the system according to factory procedure.

Quality Assurance

Denso manufactures this receiver drier to stringent factory standards as part of its First Time Fit line, with attention to OE-level fit and HVAC performance. Part number 478-2026 is engineered for the listed Toyota applications and the associated A/C service requirements.