Denso 478-2004 A/C Receiver Drier

Denso New Receiver Drier 478-2004

Denso New Receiver Drier 478-2004 is an aluminum block-union A/C receiver drier built for stable refrigerant flow and moisture control in older Toyota and Lexus air conditioning systems. It is a direct-fit service part for select 1989-1994 Toyota and Lexus applications, including Toyota MR2, Pickup, 4Runner, Camry, Celica, Land Cruiser, Corolla, Paseo, Tercel, and Lexus ES300, SC300, SC400, and LS400.

Key Features

• Aluminum body with block-union design for OE-style A/C service replacement
• Female inlet and outlet fittings for the listed factory applications
• Internal desiccant package helps remove moisture from the refrigerant circuit
• Supports smoother refrigerant flow for more consistent A/C operation
• Built to factory standards for select Toyota and Lexus vehicles
• Part number 478-2004 for easy catalog matching

Product Details

The Denso New Receiver Drier 478-2004 is used in the A/C accumulator and receiver drier category to help protect the system during major air conditioning service. By isolating moisture and managing liquid and vapor refrigerant flow, the receiver drier helps reduce internal corrosion and supports steady, surge-free cooling performance. This part cross-references Four Seasons 33583 for the same application.

Compatible With 1994 Toyota MR2, 1994 Toyota Pickup, 1992-1993 Lexus ES300, 1992-1993 Lexus SC300, 1992-1993 Lexus SC400, 1990-1993 Toyota 4Runner, 1992-1993 Toyota Camry, 1990-1993 Toyota Celica, 1991-1993 Toyota Land Cruiser, 1991-1993 Toyota MR2, 1992-1993 Toyota Paseo, 1989-1993 Toyota Pickup, 1991-1993 Toyota Tercel, 1990-1992 Lexus LS400, 1990-1992 Toyota Corolla, 1990 Toyota Land Cruiser, 1989 Toyota 4Runner, and 1989 Toyota Corolla. OE-specified O-rings are noted for the listed applications, and some fitments include model-specific notes such as Japan-built or R12 configurations.

Common Problems This Part Can Address

• Moisture contamination inside the A/C system
• Corrosion-related damage to internal A/C components
• Reduced cooling consistency after major A/C service
• Refrigerant flow irregularities that can cause surge or uneven operation
• Leak concerns tied to an aged receiver drier

Installation Notes and Tips

Replace the receiver drier during major A/C service, especially when the system has been opened for repair. Verify the vehicle’s build date, refrigerant type, and OE notes before installation, since some listed applications are limited by production month or system specification. Confirm the aluminum block-union layout and female fittings match the original part before assembly.

Quality Assurance

Denso manufactures this First Time Fit component to factory standards for the listed Toyota and Lexus applications. The design focuses on OE-style fit, moisture control, and dependable A/C system performance for service replacement use.