Four Seasons
Accumulator

Four Seasons 33331 A/C Accumulator

Brand Four Seasons 33331
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 [24622] / Green O-Ring
Outlet Fitting Diameter 1.102
Outlet Fitting Type Male Insert O-Ring
Outlet Fraction 1-1/8
Outlet MM 28.000
Style Complete Unit
Switch w/o Switch Port
Type Accumulator
Product line Accumulator
Fits Audi · 14 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable A/C service.

Aluminum construction. Helps resist corrosion while keeping the unit lightweight.

Complete unit. Ready for a straightforward accumulator replacement.

Cross-references AMS Automotive 4288, Bosch 16148 and Continental 49129 for the same application. See all 33.

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Four Seasons 33331 A/C Accumulator Overview

The Four Seasons 33331 A/C accumulator is a complete aluminum replacement unit for select Audi HVAC systems. It is built to meet or exceed OEM requirements and is specified for vehicles using a female O-ring inlet and male insert O-ring outlet.

Compatible With Audi A6, Audi A6 Quattro, Audi S6, Audi 100, Audi 100 Quattro, and Audi V8 Quattro applications from 1993 through 1997, this accumulator supports proper refrigerant management in the A/C system. The Four Seasons accumulator line focuses on direct-fit service parts for common OE-style repairs.

Key Features

  • Part number: 33331
  • Brand: Four Seasons
  • Brand line: Accumulator
  • Type: A/C accumulator, complete unit
  • Aluminum construction
  • Female O-ring inlet fitting, 3/4 in. diameter
  • Male insert O-ring outlet fitting, 1-1/8 in. outlet fraction
  • No service port and no switch port
  • Meets or exceeds OEM specifications
  • Fits OE-style HVAC service applications for Audi A6 and related models

Detailed Description

Four Seasons 33331 is an A/C accumulator used in automotive HVAC systems to manage refrigerant flow and help protect the compressor from liquid refrigerant carryover. This unit measures 3.500 inches in body diameter and 9.000 inches in body length, with an aluminum body for OE-style fitment and serviceability. It uses green O-rings and is configured as a complete unit without a service port or switch port.

As part of the Four Seasons Accumulator line, this replacement is built for direct-fit service on select Audi A6, Audi A6 Quattro, Audi S6, Audi 100, Audi 100 Quattro, and Audi V8 Quattro models. This part cross-references UAC RD10019C for the same application.

What It Is Used For

  • Replacing a leaking or damaged A/C accumulator
  • Restoring refrigerant storage and moisture separation in the HVAC circuit
  • Addressing poor A/C cooling caused by accumulator restriction or internal wear
  • Repairing O-ring connection leaks at the inlet or outlet fittings
  • Servicing Audi A/C systems that require a no-port accumulator design

Installation Notes and Tips

Verify the inlet and outlet fitting style before installation: female O-ring inlet, male insert O-ring outlet. Confirm vehicle coverage by year and chassis notes, especially for 1993 Audi 100 and 100 Quattro models listed from chassis 4AP060001, and 1993 Audi V8 Quattro applications specified for R134a. Replace the O-rings during service and evacuate and recharge the system according to factory procedures.

Quality Assurance

Four Seasons 33331 is specified to meet or exceed OEM requirements for the listed Audi applications. The Four Seasons accumulator line is built for direct replacement use in automotive air conditioning service.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1997AudiA6N/AAccumulator
1997AudiA6 QuattroN/AAccumulator
1996AudiA6N/AAccumulator
1996AudiA6 QuattroN/AAccumulator
1996AudiS62.2LL5N/AAccumulator
1995AudiA6N/AAccumulator
1995AudiA6 QuattroN/AAccumulator
1995AudiS62.2LL5N/AAccumulator
1994Audi100N/AAccumulator
1994Audi100 QuattroN/AAccumulator
1994AudiV8 QuattroN/AAccumulator
1993Audi100N/AFrom Chassis 4AP060001; Accumulator
1993Audi100 QuattroN/AFrom Chassis 4AP060001; Accumulator
1993AudiV8 QuattroN/Aw/ R134a; Accumulator
Directly replaces or cross-references 33 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4288Bosch — 16148Continental — 49129Dayco — 71235Four Seasons — 33331Global Parts Distributors LLC — 1411409UAC — RD10019C4A0820191AA4A0820191AC16148D2780115189917280120780120874570511680798137051163723247372337511133331191886108891933165954008636A78745AC2213AC2213CAC2792AC2792CCWK705116ED801RD4288T33331