HomeHVAC > A/C Accumulator / Receiver DrierFour Seasons 33143 A/C Accumulator
Part #: 33143

Four Seasons 33143 A/C Accumulator

Accumulator
⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Accumulator
🚗Fitment: Buick, Cadillac, and Chevrolet, Commercial Chassis, Roadmaster, Fleetwood, and Caprice
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Overview of Four Seasons Accumulator 33143

The Four Seasons Accumulator 33143 is designed for reliable performance in automotive HVAC systems. This A/C accumulator is compatible with Buick Caprice, Cadillac Fleetwood, Commercial Chassis, and Chevrolet Roadmaster models, ensuring proper refrigerant flow and moisture removal.

  • Brand: Four Seasons
  • Brand Line: Accumulator
  • Part Number: 33143
  • Material: Aluminum construction for durability
  • Body Diameter: 3.5 inches (88.9 mm)
  • Body Length: 9 inches (228.6 mm)
  • Inlet Fitting: Female o-ring, 3/4 inch (19.05 mm)
  • Outlet Fitting: Male insert o-ring, 3/4 inch (19.05 mm)
  • Switch Port: Included with 1/4 inch (6.35 mm) diameter
  • O-Rings: Includes two green o-rings [24650] and two green o-rings [24612]
  • Meets or exceeds OEM specifications
  • Mounting hardware not included

Four Seasons Accumulator Product Line Details

The Four Seasons Accumulator product line focuses on complete A/C accumulator units engineered to maintain system efficiency by capturing moisture and debris from the refrigerant. The 33143 model features aluminum construction and precise inlet and outlet fittings to ensure compatibility and durability in HVAC systems for select Buick, Cadillac, and Chevrolet vehicles.

Product Description and Specifications

This Four Seasons A/C accumulator (part number 33143) is a complete unit designed to fit specific GM vehicles including the Buick Caprice, Cadillac Fleetwood, Commercial Chassis, and Chevrolet Roadmaster. The aluminum body measures 3.5 inches in diameter and 9 inches in length, providing a robust and corrosion-resistant housing. It features a female o-ring inlet fitting and a male insert o-ring outlet fitting, both sized at 3/4 inch (19.05 mm), ensuring a secure and leak-free connection. The accumulator includes a switch port with a 1/4 inch diameter, allowing integration with the vehicle’s A/C system switch. Two sets of green o-rings are included for proper sealing during installation. This part meets or exceeds OEM standards but does not include mounting hardware.

Common Applications and Issues Addressed

  • Prevents moisture and debris from entering the A/C system
  • Helps maintain proper refrigerant flow and pressure
  • Reduces risk of compressor damage due to contaminants
  • Supports efficient cooling performance in Buick Caprice and Cadillac Fleetwood HVAC systems
  • Compatible with Chevrolet Roadmaster and Commercial Chassis A/C systems

Installation Notes and Tips

  • Ensure compatibility with vehicle make and model before installation
  • Use the included green o-rings [24650] and [24612] for proper sealing
  • Mounting hardware is not included; reuse existing hardware or source separately
  • Check for leaks after installation and system recharge
  • Follow vehicle manufacturer guidelines for A/C system service

Quality Assurance and Warranty

The Four Seasons Accumulator 33143 is manufactured to meet or exceed OEM specifications, providing reliable performance in compatible Buick, Cadillac, and Chevrolet vehicles. While mounting hardware is not included, the unit’s aluminum construction and precise fittings ensure durability and proper function. Warranty details should be confirmed with the product supplier or manufacturer.

BrandFour Seasons
Part Number33143
PositionAccumulator
Body Diameter3.500
Body Length9.000
DescriptionAccumulators
Dia. MM88.900
Friction Material Attachmentw/o Service Port
Inlet Fitting Diameter3/4
Inlet Fitting TypeFemale O-Ring
Inlet IN0.750
Inlet MM19.050
Length MM228.600
MaterialAluminum
Meets / Exceeds OEM?Yes
Mounting Hardware?Not Included
O-Ring A Number/Desc[24650] / Green O-Ring
O-Ring B Number/Desc[24612] / Green O-Ring
Outlet Fitting Diameter0.750
Outlet Fitting TypeMale Insert O-Ring
Outlet Fraction3/4
Outlet MM19.050
Printed Foot NoteSwivel Top/Universal Accumulator also available Part No. [33705] - Tube kit not required.
StyleComplete Unit
Switchw/ Switch Port
Switch Port Dia. IN0.250
Switch Port Dia.MM6.350
TypeAccumulator

This part fits 8 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
1993BuickRoadmasterSedan5.7LV8N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1993BuickRoadmasterWagon5.7LV8N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1993CadillacFleetwoodBaseN/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1992BuickRoadmasterSedan5.7LV8N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1992BuickRoadmasterWagon5.7LV8N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1991BuickRoadmasterWagon5.0LV8N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1991ChevroletCapriceN/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1991ChevroletCommercial ChassisN/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator

* 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:

01487408111331431131745114960114112981515371516931631116311D1727492077492085662724520272466027248972724901331433705055372322741693433904537N703674705055708566A5856AC2966AC2966CACD151693CWK705055ED749RD0693RD5047RD5047CRD5047T

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