HomeHVAC > A/C Accumulator / Receiver DrierFour Seasons 33900 A/C Accumulator
Part #: 33900

Four Seasons 33900 A/C Accumulator

Accumulator
⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Accumulator
🚗Fitment: Ford and Mercury, Cougar and Thunderbird
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Overview of Four Seasons 33900 A/C Accumulator

The Four Seasons 33900 A/C Accumulator is designed for reliable performance in Ford and Mercury vehicles, specifically the Cougar and Thunderbird models. This steel accumulator helps maintain the efficiency of your vehicle's HVAC system by filtering moisture and debris from the refrigerant.

  • Compatible with Ford Cougar and Mercury Thunderbird
  • Steel construction with a 3.5-inch body diameter and 6.5-inch length
  • Inlet fitting: Male springlock, 5/8 inch diameter
  • Outlet fitting: Barb fitting, 0.625 inch diameter
  • Includes green O-rings and spring seals for secure connections
  • Meets or exceeds OEM specifications
  • Complete unit style without mounting hardware included
  • Equipped with a switch port (0.472 inch diameter)

Detailed Product Description

The Four Seasons 33900 A/C Accumulator is a critical component in the air conditioning system of select Ford and Mercury vehicles. Constructed from durable steel, this accumulator features a 3.5-inch diameter and a length of 6.5 inches (88.9 mm diameter and 165.1 mm length). It is designed with a male springlock inlet fitting measuring 5/8 inch (15.875 mm) and a barb outlet fitting of the same diameter, ensuring proper refrigerant flow and system integrity.

This accumulator includes multiple O-rings—specifically green O-rings and a spring seal—to provide a tight, leak-free seal. The unit also features a switch port with a diameter of 0.472 inches (12 mm), allowing for integration with the vehicle’s HVAC system controls. The Four Seasons Accumulator line is engineered to meet or exceed OEM standards, providing a reliable replacement part for maintaining your vehicle’s air conditioning performance.

Applications and Common Issues Addressed

  • Prevents moisture and debris from entering the A/C system
  • Helps avoid compressor damage caused by contaminants
  • Maintains proper refrigerant flow and pressure
  • Reduces risk of system freeze-ups and blockages
  • Supports efficient cooling performance in Ford Cougar and Mercury Thunderbird models

Installation Notes and Tips

Installation of the Four Seasons 33900 A/C Accumulator requires proper handling of refrigerant lines and seals. Ensure all O-rings are correctly positioned and lubricated to prevent leaks. Note that mounting hardware is not included, so retain original brackets or source compatible hardware. Verify the switch port connection matches your vehicle’s HVAC system requirements. It is recommended to have the A/C system evacuated and recharged by a certified technician after installation.

Quality Assurance and Warranty

This Four Seasons A/C Accumulator meets or exceeds OEM specifications for fit, form, and function. Manufactured from high-quality steel and equipped with OEM-grade seals, it is designed for durability and reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number33900
PositionAccumulator
Body Diameter3.500
Body Length6.500
DescriptionAccumulators
Dia. MM88.900
Friction Material Attachmentw/o Service Port
Inlet Fitting Diameter5/8
Inlet Fitting TypeMale Springlock
Inlet IN0.625
Inlet MM15.875
Length MM165.100
MaterialSteel
Meets / Exceeds OEM?Yes
Mounting Hardware?Not Included
O-Ring A Number/Desc[24676] / Green O-Ring
O-Ring B Number/Desc[24220] / Spring
O-Ring C Number/Desc[24670] / Green O-Ring
Outlet Fitting Diameter0.625
Outlet Fitting TypeBarb Fitting
Outlet Fraction5/8
Outlet MM15.875
StyleComplete Unit
Switchw/ Switch Port
Switch Port Dia. IN0.472
Switch Port Dia.MM12.000
TypeAccumulator

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993FordCougar5.0LV8N/AAccumulator
1993FordThunderbird5.0LV8N/AAccumulator
1993MercuryCougar5.0LV8N/AAccumulator
1992FordCougar5.0LV8N/AAccumulator
1992FordThunderbird5.0LV8N/AAccumulator
1992MercuryCougar5.0LV8N/AAccumulator
1991FordCougar5.0LV8N/AAccumulator
1991FordThunderbird5.0LV8N/AAccumulator
1991MercuryCougar5.0LV8N/AAccumulator

* 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:

1113390015107731643116431D1728911918883019359691AMAC3390020789133900370606640851742604260B42695604507706066A78517AC2223CCWK706066ED891RD7200RD7200CT33900

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