HomeHVAC > A/C Accumulator / Receiver DrierFour Seasons 33444 A/C Receiver Drier
Part #: 33444

Four Seasons 33444 A/C Receiver Drier

Filter Drier
⚙️ 30 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Filter Drier
🚗Fitment: BMW and Mercury, 325i, 318i, 318is, 325is, 325iX, M3, 325, 325e, 325es, and Monarch
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Overview of Four Seasons Filter Drier 33444

The Four Seasons Filter Drier 33444 is designed to maintain the efficiency and longevity of your vehicle's air conditioning system. Engineered with durable steel construction and integrated desiccant material, this A/C receiver drier is compatible with select BMW and Mercury models, including the BMW 318i, 325i, and M3, as well as the Mercury Monarch.

  • Constructed from robust steel for durability
  • Includes non-replaceable desiccant to absorb moisture
  • Male insert o-ring inlet and outlet fittings for secure connections
  • Body dimensions: 3.0 inches diameter, 6.0 inches length
  • Gaskets and seals included for proper installation
  • Meets or exceeds OEM specifications
  • Compatible with BMW 318i, 318is, 325e, 325es, 325i, 325is, 325iX, M3 and Mercury Monarch

Four Seasons Filter Drier Product Line Details

The Filter Drier line by Four Seasons focuses on providing reliable A/C accumulator and receiver driers that protect automotive air conditioning systems from moisture and contaminants. The 33444 part number is part of this line, featuring integrated desiccant material and precision fittings designed to meet OEM standards. This ensures proper filtration and moisture absorption to maintain system performance in compatible BMW and Mercury vehicles.

Technical Description and Features

This A/C receiver drier is constructed from steel, providing strength and resistance to corrosion. It features a 0.625-inch male inlet filter fitting thread diameter and male insert o-ring fittings on both inlet and outlet sides, ensuring a tight, leak-free connection. The desiccant inside is not replaceable but effectively removes moisture from the refrigerant to prevent system damage. The unit measures 3.0 inches in diameter and 6.0 inches in length, with included gaskets and seals to facilitate installation. Note that the washer is not included, and a mounting bracket is not part of the package.

Applications and Problem Solving

  • Prevents moisture buildup in the A/C system
  • Filters out contaminants to protect compressor and components
  • Helps maintain consistent refrigerant flow and pressure
  • Reduces risk of corrosion and freeze-ups in BMW 318i and Mercury Monarch A/C systems
  • Supports efficient cooling performance in BMW M3 and other compatible models

Installation Notes and Tips

When installing the Four Seasons Filter Drier 33444, ensure the correct orientation of the male insert o-ring fittings for a secure seal. Use the included gaskets and seals to prevent leaks. Since the desiccant is not replaceable, replace the entire unit if contamination or moisture issues are suspected. Note that the mounting bracket is not included, so verify compatibility with your vehicle’s mounting points. This part is designed for professional installation to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Filter Drier 33444 meets or exceeds OEM specifications for fit, form, and function. It is a new part, not remanufactured, ensuring reliable performance. The product includes three green o-rings (part number 24606) for proper sealing. While specific warranty details are not provided here, Four Seasons products typically come with manufacturer-backed quality assurance to support long-term use in BMW and Mercury vehicles.

BrandFour Seasons
Part Number33444
PositionFilter Drier
Body Diameter3.000
Body Length6.000
Bracket?w/ Bracket
Connector B TypeMale Insert O-Ring
Connector TypeMale Insert O-Ring
DescriptionFilter Driers
DesiccantYes
Desiccant ReplaceableNot Replaceable
Dia. MM76.200
Fuse PlugNo
Gasket / Seals?Included
In Line Filter MaterialDesiccant
In Line Filter Outlet Fitting TypeMale
Inlet Filter Fitting Thread Diameter0.625
Inlet Filter Fitting TypeMale
Inlet Fitting Diameter0.375
Inlet Fitting TypeMale Insert O-Ring
Inlet Fraction3/8
Inlet IN0.375
Inlet MM9.525
Length MM152.400
MaterialSteel
Meets / Exceeds OEM?Yes
Moisture Indicator WindowNo
Mounting Bracket IncludedNot Included
New or RemanNew
O-Ring A Number/Desc[24606] / Green O-Ring
Outlet Fitting TypeMale Insert O-Ring
Outlet Fraction3/8
Outlet IN0.375
Outlet MM9.525
Overall Depth IN6.000
P. R. V.?No
Service Port?w/ Service Port
Sight Glass?Yes
Stud?No
StyleSteel Filter Drier
Switch Port Dia. IN0.250
Switch Port Dia.MM6.350
Switch Port?w/ Switch Port
TypeWasher Not Included

This part fits 30 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
1993BMW325iConvertible2.5LL6N/Aw/ Black Term on Pressure Switch; Filter Drier
1992BMW318iConvertible1.8LL4N/AFilter Drier
1992BMW325iConvertible2.5LL6N/Aw/ Black Term on Pressure Switch; Filter Drier
1991BMW318iN/AFilter Drier
1991BMW318isN/AFilter Drier
1991BMW325iN/Aw/ Black Term on Pressure Switch; Filter Drier
1991BMW325isN/Aw/ Black Term on Pressure Switch; Filter Drier
1991BMW325iXN/Aw/ Black Term on Pressure Switch; Filter Drier
1991BMWM3N/Aw/ Black Term on Pressure Switch; Filter Drier
1990BMW325iN/Aw/ Black Term on Pressure Switch; Filter Drier
1990BMW325isN/Aw/ Black Term on Pressure Switch; Filter Drier
1990BMW325iXN/Aw/ Black Term on Pressure Switch; Filter Drier
1990BMWM3N/Aw/ Black Term on Pressure Switch; Filter Drier
1989BMW325iN/Aw/ Black Term on Pressure Switch; Filter Drier
1989BMW325isN/Aw/ Black Term on Pressure Switch; Filter Drier
1989BMW325iXN/Aw/ Black Term on Pressure Switch; Filter Drier
1988BMW325iN/Aw/ Black Term on Pressure Switch; Filter Drier
1988BMW325isN/Aw/ Black Term on Pressure Switch; Filter Drier
1988BMW325iXN/Aw/ Black Term on Pressure Switch; Filter Drier
1987BMW325eN/Aw/ Black Term on Pressure Switch; Filter Drier
1987BMW325esN/Aw/ Black Term on Pressure Switch; Filter Drier
1987BMW325iN/Aw/ Black Term on Pressure Switch; Filter Drier
1987BMW325isN/Aw/ Black Term on Pressure Switch; Filter Drier
1986BMW325eN/Aw/ Black Term on Pressure Switch; Filter Drier
1986BMW325esN/Aw/ Black Term on Pressure Switch; Filter Drier
1985BMW318iN/Aw/ Black Term on Pressure Switch; Filter Drier
1985BMW325eN/Aw/ Black Term on Pressure Switch; Filter Drier
1984BMW325eN/Aw/ Black Terminal on Pressure Switch; Filter Drier
1977MercuryMonarch5.0LV8N/Aw/ Factory Air; From 2/15/77; Filter Drier
1977MercuryMonarch5.8LV8N/Aw/ Factory Air; From 2/15/77; 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:

1113344414114791510000171324172805191886942078052087552804733444370809737134414123478550554000864531394109645383910257080977132480797988919432A78755AC2879CCWK708097ED805RD1324RD1324C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.