Four Seasons 33429 A/C Receiver Drier

Four Seasons 33429 Filter Drier for BMW A/C Systems

Four Seasons 33429 is a steel A/C receiver drier built for BMW HVAC systems that use pad-mount connections and a service port. It is a new, OE-style replacement that meets or exceeds OEM requirements for the listed applications, including BMW 525i, 535i, 735i, and related models.

Key Features

• Steel filter drier construction for A/C receiver drier service
• Pad-mount inlet and outlet fittings
• Built with desiccant and an in-line desiccant filter material
• Includes gasket/seals and green O-ring seals
• Service port and switch port included
• Pressure relief valve included
• New part that meets or exceeds OEM specifications
• Four Seasons Filter Drier line for HVAC service applications

Product Details

The Four Seasons Filter Drier line is used in automotive air conditioning systems to help manage moisture and contamination in the refrigerant circuit. Part number 33429 uses a steel body with pad-mount inlet and outlet fittings, a 3/8-inch inlet and outlet size, and a service-port-equipped design for the specified BMW applications. This receiver drier is listed with a non-replaceable desiccant, no sight glass, and no moisture indicator window, matching the configuration needed for the covered vehicles. This part cross-references UAC RD0201C for the same application.

Vehicle Fitment

• Fits 1990-1995 BMW 525i, N/A
• Fits 1994-1995 BMW 530i, N/A
• Fits 1994-1995 BMW 540i, N/A
• Fits 1993-1994 BMW 740i, N/A
• Fits 1993-1994 BMW 740iL, N/A
• Fits 1988-1994 BMW 750iL, N/A
• Fits 1993 BMW 525iT, N/A
• Fits 1990-1993 BMW 535i, N/A
• Fits 1991-1993 BMW M5, N/A
• Fits 1990-1992 BMW 735i, N/A, w/ 1 Switch Port; Filter Drier
• Fits 1988-1992 BMW 735iL, N/A, w/ 1 Switch Port; Filter Drier
• Fits 1989 BMW 525i, N/A, w/ 1 Switch Port; From 3/89; Filter Drier
• Fits 1989 BMW 535i, N/A, w/ 1 Switch Port; From 3/89; Filter Drier

Common A/C Issues This Part Helps Address

• Moisture buildup in the refrigerant system
• Contamination entering the A/C circuit
• Reduced cooling performance from a saturated drier
• Service-port-equipped BMW receiver drier replacement needs
• Leak repair service where seals and pad-mount connections are required

Installation Notes and Tips

Verify the pad-mount connection style, inlet and outlet size, and switch-port configuration before installation. Replace the receiver drier whenever the A/C system has been opened for major service, compressor replacement, or contamination cleanup. Use the included seals during installation and evacuate the system properly before recharging refrigerant.

Quality Assurance

Four Seasons 33429 is a new replacement part that meets or exceeds OEM requirements for the listed BMW applications. The steel construction, desiccant charge, and OE-style fitment support proper A/C system service on compatible BMW 525i, 535i, 735i, and related models.