HomeHVAC > A/C Accumulator / Receiver DrierFour Seasons 33377 A/C Receiver Drier
Part #: 33377

Four Seasons 33377 A/C Receiver Drier

Filter Drier
⚙️ 20 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: Ford, Mercury, and Lincoln, LTD II, Ranchero, Thunderbird, Cougar, Custom 500, Mark V, Gran Torino, Torino, Mark IV, Montego, Ranch Wagon, and Custom
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Reliable A/C Receiver Drier for Ford and Mercury Vehicles

The Four Seasons Filter Drier 33377 is designed to maintain optimal air conditioning performance in select Ford and Mercury models. Engineered with durable steel construction and essential filtration features, this A/C receiver drier supports the longevity and efficiency of your vehicle's HVAC system.

  • Constructed from robust steel for durability
  • Includes non-replaceable desiccant to absorb moisture
  • Male insert o-ring inlet and outlet fittings for secure connections
  • Compatible with Ford Cougar, Montego, and Thunderbird models
  • Comes with included gaskets and seals for proper installation
  • Meets or exceeds OEM specifications
  • Body dimensions: 2.5 inches diameter, 11 inches length
  • Part number 33377 for precise fitment

About the Four Seasons Filter Drier Product Line

The Filter Drier line by Four Seasons focuses on providing reliable filtration and moisture removal within automotive A/C systems. This product line is engineered to meet OEM standards, ensuring that each receiver drier effectively protects the system from contaminants and moisture buildup. The 33377 model exemplifies this commitment by combining quality materials and precise fitment for Ford and Mercury vehicles.

Detailed Product Description

The Four Seasons Filter Drier 33377 features a steel body with a 2.5-inch diameter and an 11-inch length, designed to fit seamlessly into the HVAC system of Ford Cougar, Montego, and Thunderbird models. It includes a desiccant filter that is not replaceable but effectively removes moisture from the refrigerant to prevent corrosion and system damage. The inlet and outlet fittings are male insert o-ring types, with a 0.375-inch diameter inlet fitting thread, ensuring a secure and leak-free connection. Gaskets and seals are included to facilitate proper installation. This receiver drier does not include a moisture indicator window or fuse plug but is supplied with mounting bracket options to suit installation needs.

Common Applications and Issues Addressed

  • Prevents moisture contamination in the A/C system
  • Protects compressor and other components from corrosion
  • Filters out debris and particulates from refrigerant flow
  • Helps maintain consistent cooling performance
  • Reduces risk of system failure due to clogged or damaged driers

Installation Notes and Tips

  • Ensure compatibility with Ford Cougar, Montego, and Thunderbird models before installation
  • Use included gaskets and seals to prevent refrigerant leaks
  • Replace the receiver drier whenever the A/C system is opened for repair
  • Check inlet and outlet fitting types for proper connection
  • Do not attempt to replace the desiccant; replace the entire unit if needed

Quality Assurance and Warranty

The Four Seasons Filter Drier 33377 is a new, OEM-quality replacement part that meets or exceeds original equipment manufacturer standards. It is manufactured with strict quality controls to ensure reliable performance and durability. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number33377
PositionFilter Drier
Body Diameter2.500
Body Length11.000
Bracket?w/ Bracket
Connector B TypeMale Insert O-Ring
Connector TypeMale Insert O-Ring
DescriptionFilter Driers
DesiccantYes
Desiccant ReplaceableNot Replaceable
Dia. MM63.500
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 MM279.400
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 IN11.000
P. R. V.?No
Service Port?w/o Service Port
Sight Glass?No
Stud?No
StyleSteel Filter Drier
Switch Port?w/o Switch Port
TypeWasher Not Included

This part fits 20 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1979FordThunderbirdN/Aw/ Factory Air; 3 Bracket; Filter Drier
1979MercuryCougarN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1978FordThunderbirdN/Aw/ Factory Air; 3 Bracket; Filter Drier
1978MercuryCougar6.6LV8N/Aw/ Factory Air; 3 Bracket; Filter Drier
1977FordThunderbirdN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1977MercuryCougarN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1976FordThunderbirdN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1976MercuryCougarN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1976MercuryMontegoN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1975FordThunderbirdN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1975MercuryCougarN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1975MercuryMontegoN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1974FordThunderbirdN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1974MercuryCougarN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1974MercuryMontegoN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1973FordThunderbirdN/AFilter Drier
1973MercuryCougarN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1973MercuryMontegoN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; Filter Drier
1972FordThunderbirdN/AFilter Drier
1972MercuryMontegoN/AFits HVAC Blower Motor Wheel for vehicles with factory air.; 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:

111333771411434151831519381644016440D17217617410719188647207176208366209176271763337737080863713216382054024060333070808680627388919370A7256AC2205AC2205CCWK708086D20Z19959AED176RD4107RD4107CYL9

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