Four Seasons
Filter Drier

Four Seasons 33665 A/C Receiver Drier

Brand Four Seasons 33665
Body Diameter 3.750
Body Length 8.000
Bracket? w/ Bracket
Connector B Type Pad Mount
Connector Type Pad Mount
Description Filter Driers
Desiccant Yes
Desiccant Replaceable Not Replaceable
Dia. MM 95.250
Fuse Plug No
Gasket / Seals? Included
In Line Filter Material Desiccant
In Line Filter Outlet Fitting Type Pad Mount
Inlet Filter Fitting Type Pad Mount
Inlet Fitting Diameter 0.375
Inlet Fitting Type Pad Mount
Inlet Fraction 3/8
Inlet IN 0.375
Inlet MM 10.000
Length MM 203.200
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 Pad Mount
Outlet Fraction 3/8
Outlet IN 0.375
Outlet MM 10.000
Overall Depth IN 8.000
P. R. V.? No
Service Port? w/o Service Port
Sight Glass? No
Stud? Yes
Style Steel Filter Drier
Switch Port? w/ Switch Port
Type Washer Not Included
Product line Filter Drier
Fits BMW · 6 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable system service.

Steel construction. Durable filter drier body with pad-mount connections.

Desiccant filter. Helps remove moisture from the A/C system.

Cross-references AMS Automotive 4096, AP Exhaust 28020 and Continental 49016 for the same application. See all 32.

$43.68Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Four Seasons 33665 Filter Drier Overview

Four Seasons 33665 is a steel A/C receiver drier built for HVAC systems that use pad mount connections and a switch port. It is a new, OE-style replacement that meets or exceeds OEM requirements for the listed BMW applications, including 1987-1989 BMW 735i and 1988 BMW 735iL.

The Four Seasons Filter Drier line focuses on dependable refrigerant filtration and moisture control for automotive air conditioning systems. This 33665 receiver drier uses a steel body, integrated desiccant, and pad mount inlet and outlet fittings to match the original service layout on supported vehicles.

Key Features

  • Part number 33665 from Four Seasons Filter Drier
  • Steel body construction for A/C system service
  • Pad mount inlet and outlet fittings
  • Integrated desiccant for moisture removal
  • New replacement that meets or exceeds OEM specifications
  • Gaskets/seals included
  • Switch port included; no service port, sight glass, or fuse plug
  • 3/8 in. inlet and outlet fitting diameter
  • Body dimensions: 3.750 in. diameter and 8.000 in. length

Detailed Description

Four Seasons 33665 is an A/C receiver drier used in automotive HVAC systems to filter refrigerant and remove moisture from the circuit. Its steel construction, pad mount connector style, and integrated desiccant make it a direct-fit style service part for the listed BMW 525i, 535i, 735i, and 735iL applications. This part cross-references UAC RD10143C for the same application. If you are replacing a worn or contaminated BMW A/C receiver drier, Four Seasons 33665 provides the correct pad mount configuration and switch port layout for the specified vehicles.

What It Is Used For

  • Replacing a leaking or corroded A/C receiver drier
  • Restoring refrigerant filtration after system contamination
  • Removing moisture from the air conditioning circuit
  • Addressing poor cooling caused by a restricted or saturated drier
  • Matching the original pad mount receiver drier setup on BMW HVAC systems

Installation Notes and Tips

Verify the pad mount fitting style, 3/8 in. inlet and outlet size, and switch port configuration before installation. Replace the receiver drier any time the A/C system has been opened for major service, compressor replacement, or contamination cleanup. Use clean assembly practices and confirm all sealing surfaces are in good condition before recharging the system. This part is listed for 1989 BMW 525i before 3/89 with 3 switch ports, 1989 BMW 535i before 3/89 with 3 switch ports, 1987-1989 BMW 735i with 3 switch ports, and 1988 BMW 735iL with 3 switch ports.

Quality Assurance

Four Seasons 33665 is a new replacement part that meets or exceeds OEM requirements for the listed applications. It is built as a steel filter drier with included seals and the specified pad mount configuration for service accuracy on BMW A/C systems.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1989BMW525iN/Aw/ 3 Switch Ports; Before 3/89; Filter Drier
1989BMW535iN/Aw/ 3 Switch Ports; Before 3/89; Filter Drier
1989BMW735iN/Aw/ 3 Switch Ports; Filter Drier
1988BMW735iN/Aw/ 3 Switch Ports; Filter Drier
1988BMW735iLN/Aw/ 3 Switch Ports; Filter Drier
1987BMW735iN/Aw/ 3 Switch Ports; Filter Drier
Directly replaces or cross-references 32 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4096AP Exhaust — 28020Continental — 49016Dayco — 71381Four Seasons — 33665Global Parts Distributors LLC — 1411581UAC — RD10143C161008161008D172928207928208692708168807930151006237081683713549111336651918881788919494645213890486453137633364531389048645313906206453146605264538390469A78692AC2667AC2667CCWK708168ED928RD10014