Four Seasons
Accumulator

Four Seasons 33145 A/C Accumulator

Brand Four Seasons 33145
Body Diameter 3.500
Body Length 9.000
Description Accumulators
Dia. MM 88.900
Friction Material Attachment w/o Service Port
Inlet Fitting Diameter 3/4
Inlet Fitting Type Female O-Ring
Inlet IN 0.750
Inlet MM 19.050
Length MM 228.600
Material Aluminum
Meets / Exceeds OEM? Yes
Mounting Hardware? Not Included
O-Ring A Number/Desc [24612] / Green O-Ring
Outlet Fitting Diameter 0.750
Outlet Fitting Type Male Insert O-Ring
Outlet Fraction 3/4
Outlet MM 19.050
Printed Foot Note Swivel Top/Universal Accumulator also available Part No. [33705] - Tube kit not required.
Style Complete Unit
Switch w/o Switch Port
Type Accumulator
Product line Accumulator
Fits Audi, Buick, and Oldsmobile · 10 vehicles

OE-spec replacement. Meets or exceeds OEM requirements for dependable service.

Aluminum construction. Lightweight body resists corrosion in demanding HVAC use.

Complete unit. Ready-to-install accumulator with female and male O-ring fittings.

Cross-references Four Seasons 4553N, Four Seasons 16312 and Four Seasons 33145 for the same application. See all 30.

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Four Seasons 33145 A/C Accumulator Overview

Four Seasons 33145 is a complete aluminum A/C accumulator built for OE-style service on select Audi, Buick, and Oldsmobile applications. It uses a female O-ring inlet and male insert O-ring outlet, with no service port and no switch port, for a direct replacement on listed vehicles.

The Four Seasons Accumulator line focuses on replacement components that match factory-style HVAC connections and dimensions. This unit measures 3.500 inches in body diameter and 9.000 inches in body length, and it meets or exceeds OEM requirements for the listed applications.

Key Features

  • Part number 33145 A/C accumulator for HVAC service
  • Aluminum complete unit with OE-style fitment
  • Female O-ring inlet and male insert O-ring outlet
  • No service port and no switch port
  • Body diameter: 3.500 in. / 88.900 mm
  • Body length: 9.000 in. / 228.600 mm
  • Meets or exceeds OEM specifications
  • Uses green O-ring seals, OE reference [24612]

Detailed Description

Four Seasons 33145 is an A/C accumulator used in the HVAC refrigerant circuit to support proper system operation on vehicles that require this style of accumulator. It is listed for 1991-1992 Buick Century, 1991-1992 Oldsmobile Cutlass Ciera, and 1992-1993 Audi 100 and Audi 100 Quattro, including applications noted as optional swivel top or universal accumulator setups with no tube kit required. This part cross-references Monroe Shocks & Struts (e.g., 172747) for the same application.

Compatible vehicle coverage includes Fits 1993 Audi 100, N/A; Fits 1993 Audi 100 Quattro, N/A; Fits 1992 Audi 100, N/A; Fits 1992 Audi 100 Quattro, N/A; Fits 1991-1992 Buick Century, N/A; and Fits 1991-1992 Oldsmobile Cutlass Ciera, N/A. If you are replacing a leaking or damaged accumulator on one of these applications, Four Seasons 33145 provides the correct connection style and housing dimensions for the listed fitments.

What This Part Helps Address

  • Refrigerant system moisture control concerns tied to a worn accumulator
  • Leaks at the accumulator housing or O-ring connections
  • Improper A/C operation caused by a damaged or restricted accumulator
  • Service issues on vehicles requiring female O-ring inlet and male insert outlet connections
  • Replacement needs for listed Audi 100, Buick Century, and Oldsmobile Cutlass Ciera applications

Installation Notes

  • Verify the inlet and outlet fitting style before installation.
  • Confirm the vehicle uses a no-service-port, no-switch-port accumulator configuration.
  • Replace the O-rings with the correct green O-ring seals during service.
  • Check the system for contamination and leaks before recharging the A/C system.
  • Mounting hardware is not included.

Quality Assurance

Four Seasons 33145 is built as an OE-style replacement and is specified to meet or exceed OEM requirements for the listed applications. The aluminum construction and factory-style fittings support accurate replacement on compatible Audi, Buick, and Oldsmobile HVAC systems.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersPositionNotes
1993Audi100N/ATo Chassis 4AP060000; Optional Swivel Top/Univeral Accumlator, Tube kit not required; Accumulator
1993Audi100 QuattroN/ATo Chassis 4AP060000; Optional Swivel Top/Univeral Accumlator, Tube kit not required; Accumulator
1992Audi100N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1992Audi100 QuattroN/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1992BuickCenturySedan2.5LL4N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1992BuickCenturyCoupe2.5LL4N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1992OldsmobileCutlass Ciera2.5LL4N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1991BuickCenturySedan2.5LL4N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1991BuickCenturyCoupe2.5LL4N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
1991OldsmobileCutlass Ciera2.5LL4N/AOptional swivel top or universal A/C accumulator; no tube kit required.; Accumulator
Directly replaces or cross-references 30 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 4553NFour Seasons — 16312Four Seasons — 33145Gates — 21553Marmon Ride Control — A5852Monroe Shocks & Struts — 172747UAC — RD1553C4429N16312D21553R151553151675171553207747208570703681705105113181812222850148742427245432724876370510511133145AC2358AC2358CCWK705105ED747RD1553RD5080