OE Quality
60-Day Returns

Four Seasons 33433 A/C Receiver Drier
Overview of Four Seasons Filter Drier 33433
The Four Seasons Filter Drier 33433 is engineered for reliable performance in BMW A/C systems. Designed specifically for models like the BMW 524td, 528e, 533i, 535i, 535is, 635CSi, M5, and M6, this A/C receiver drier ensures efficient moisture and contaminant removal to maintain optimal air conditioning function.
- Constructed from durable steel for long-lasting use
- Includes desiccant material to absorb moisture effectively
- Male insert o-ring inlet and outlet fittings for secure connections
- Fuse plug included for system safety
- Compatible with BMW 524td, 528e, 533i, 535i, 535is, 635CSi, M5, and M6 models
- Body dimensions: 3.000 inch diameter and 6.500 inch length
- Gaskets and seals included for proper installation
- Service port included for maintenance access
Four Seasons Filter Drier Product Line Details
The Four Seasons Filter Drier line focuses on providing high-quality A/C accumulator and receiver driers that meet or exceed OEM specifications. This product line is designed to protect automotive A/C systems by filtering out moisture and contaminants, ensuring system longevity and performance. The 33433 part is a new unit featuring a non-replaceable desiccant and includes essential components such as a fuse plug and service port to facilitate safe and efficient operation.
Technical Description and Features
The Four Seasons Filter Drier 33433 is a steel-bodied A/C receiver drier with a 3-inch diameter and 6.5-inch length, designed to fit select BMW models. It features male insert o-ring fittings on both inlet and outlet sides, each with a 0.375-inch diameter, ensuring a secure and leak-free connection. The internal desiccant material effectively removes moisture from the refrigerant, preventing corrosion and system damage. The unit includes a fuse plug for added safety and comes with three green o-rings (part number 24606) and necessary gaskets and seals. Although the desiccant is not replaceable, the filter drier is designed for durability and reliable performance throughout its service life.
Applications and Problem Solving
- Removes moisture and contaminants from BMW A/C refrigerant lines
- Prevents corrosion and damage to A/C compressor and components
- Maintains efficient refrigerant flow and system pressure
- Helps avoid system freeze-ups and blockages
- Supports proper functioning of BMW 524td, 528e, 533i, 535i, 535is, 635CSi, M5, and M6 air conditioning systems
Installation Notes and Tips
- Ensure compatibility with your specific BMW model before installation
- Use the included gaskets and green o-rings to prevent leaks
- Check that inlet and outlet fittings match the system connections (male insert o-ring, 0.375 inch diameter)
- Do not attempt to replace the desiccant; replace the entire unit if necessary
- Verify the fuse plug is intact and properly seated during installation
Quality Assurance and Warranty
The Four Seasons Filter Drier 33433 meets or exceeds OEM standards for fit, form, and function. It is a new, high-quality replacement part designed to maintain the integrity of your BMW A/C system. The product includes all necessary seals and fittings to ensure a proper installation. Warranty coverage details should be confirmed with the product documentation or manufacturer.
| Brand | Four Seasons |
| Part Number | 33433 |
| Position | Filter Drier |
| Body Diameter | 3.000 |
| Body Length | 6.500 |
| Bracket? | w/ Bracket |
| Connector B Type | Male Insert O-Ring |
| Connector Type | Male Insert O-Ring |
| Description | Filter Driers |
| Desiccant | Yes |
| Desiccant Replaceable | Not Replaceable |
| Dia. MM | 76.200 |
| Fuse Plug | Yes |
| Gasket / Seals? | Included |
| In Line Filter Material | Desiccant |
| In Line Filter Outlet Fitting Type | Male |
| Inlet Filter Fitting Type | Male |
| Inlet Fitting Diameter | 0.375 |
| Inlet Fitting Type | Male Insert O-Ring |
| Length MM | 165.100 |
| Material | Steel |
| Meets / Exceeds OEM? | Yes |
| Moisture Indicator Window | No |
| Mounting Bracket Included | Not Included |
| New or Reman | New |
| O-Ring A Number/Desc | [24606] / Green O-Ring |
| Outlet Fitting Type | Male Insert O-Ring |
| Outlet IN | 0.375 |
| Overall Depth IN | 6.500 |
| P. R. V.? | No |
| Service Port? | w/ Service Port |
| Sight Glass? | Yes |
| Stud? | Yes |
| Style | Steel Filter Drier |
| Switch Port Dia. IN | 0.250 |
| Switch Port Dia.MM | 6.350 |
| Switch Port? | w/ Switch Port |
| Type | Washer Not Included |
This part fits 24 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1989 | BMW | 635CSi | N/A | Filter Drier |
| 1988 | BMW | 528e | N/A | Filter Drier |
| 1988 | BMW | 535i | N/A | Filter Drier |
| 1988 | BMW | 535is | N/A | Filter Drier |
| 1988 | BMW | 635CSi | N/A | Filter Drier |
| 1988 | BMW | M5 | N/A | Filter Drier |
| 1988 | BMW | M6 | N/A | Filter Drier |
| 1987 | BMW | 528e | N/A | Filter Drier |
| 1987 | BMW | 535i | N/A | Filter Drier |
| 1987 | BMW | 635CSi | N/A | Filter Drier |
| 1987 | BMW | M6 | N/A | Filter Drier |
| 1986 | BMW | 524td | N/A | Filter Drier |
| 1986 | BMW | 528e | N/A | Filter Drier |
| 1986 | BMW | 535i | N/A | Filter Drier |
| 1986 | BMW | 635CSi | N/A | Filter Drier |
| 1985 | BMW | 524td | N/A | Filter Drier |
| 1985 | BMW | 528e | N/A | Filter Drier |
| 1985 | BMW | 535i | N/A | Filter Drier |
| 1985 | BMW | 635CSi | N/A | Filter Drier |
| 1984 | BMW | 528e | N/A | Filter Drier |
| 1984 | BMW | 533i | N/A | Filter Drier |
| 1983 | BMW | 528e | N/A | Filter Drier |
| 1983 | BMW | 533i | N/A | Filter Drier |
| 1982 | BMW | 528e | N/A | Filter Drier |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.