Four Seasons
Accumulator

Four Seasons 33174 A/C Accumulator

Brand Four Seasons 33174
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 Male Springlock
Inlet IN 0.750
Inlet MM 19.050
Length MM 228.600
Material Steel
Meets / Exceeds OEM? Yes
Mounting Hardware? Not Included
O-Ring A Number/Desc [24222] / Spring
O-Ring B Number/Desc [24672] / Green O-Ring
O-Ring C Number/Desc [24220] / Spring
O-Ring D Number/Desc [24670] / Green O-Ring
O-Ring E Number/Desc [24650] / Green O-Ring
Outlet Fitting Diameter 0.625
Outlet Fitting Type Female Springlock
Outlet Fraction 5/8
Outlet MM 15.875
Style Complete Unit
Switch w/ Switch Port
Switch Port Dia. IN 0.250
Switch Port Dia.MM 6.350
Type Accumulator
Product line Accumulator
Fits Ford · 8 vehicles

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

Steel construction. Durable body helps stand up to demanding HVAC conditions.

Complete unit. Ready-to-install accumulator with springlock fittings and switch port.

Cross-references AMS Automotive 4220, Dorman - HELP 42590 and Eastern Catalytic 41324 for the same application. See all 47.

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Four Seasons 33174 A/C Accumulator

The Four Seasons 33174 A/C accumulator is a complete steel replacement unit for select Ford Aerostar models with rear air conditioning. It is built to meet or exceed OEM requirements and uses springlock inlet and outlet fittings for a direct-style HVAC service replacement.

For Ford Aerostar owners searching for an A/C accumulator for 1986-1993 Ford Aerostar rear AC systems, this Four Seasons accumulator provides the correct fitment details and service-port configuration for the listed applications.

Key Features

  • Brand: Four Seasons Accumulator line
  • Part number: 33174
  • Complete unit A/C accumulator assembly
  • Steel body construction
  • Body diameter: 3.500 in. / 88.900 mm
  • Body length: 9.000 in. / 228.600 mm
  • Male springlock inlet, 3/4 in. diameter
  • Female springlock outlet, 5/8 in. diameter
  • Switch port included; service port not included
  • Meets or exceeds OEM specifications
  • Mounting hardware not included

Product Details

The Four Seasons Accumulator product line focuses on HVAC replacement components built for direct-fit service. This 33174 accumulator is specified as a complete unit with the correct inlet and outlet fitting style, switch port provision, and O-ring references for the listed Ford Aerostar applications. It is a practical choice when replacing a leaking, restricted, or contaminated accumulator in an A/C system that uses rear air conditioning.

This part cross-references Dorman - HELP 42590 and UAC RD6019C for the same application. It is also listed under Four Seasons 33174 for catalog and interchange lookup.

Common Problems This Part Can Address

  • Loss of A/C cooling performance from a restricted accumulator
  • Refrigerant leakage at accumulator connections or fittings
  • Moisture contamination in the A/C system after component failure
  • Compressor protection issues caused by poor refrigerant flow management
  • Service replacement needs on rear AC-equipped Ford Aerostar models

Installation Notes

  • Fits 1986-1987 Ford Aerostar, N/A, w/ Factory Air; w/ Rear AC; Accumulator
  • Fits 1988-1993 Ford Aerostar, N/A, w/ Rear AC; Accumulator
  • Verify inlet and outlet fitting style before installation: male springlock inlet and female springlock outlet
  • Confirm the vehicle uses the listed switch-port configuration before ordering
  • Replace worn O-rings and evacuate and recharge the system after installation
  • Mounting hardware is not included

Quality Assurance

Four Seasons states that this accumulator meets or exceeds OEM requirements. The steel construction and application-specific fitment details support a direct replacement for the listed Ford Aerostar HVAC configurations.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1993FordAerostarN/Aw/ Rear AC; Accumulator
1992FordAerostarN/Aw/ Rear AC; Accumulator
1991FordAerostarN/Aw/ Rear AC; Accumulator
1990FordAerostarN/Aw/ Rear AC; Accumulator
1989FordAerostarN/Aw/ Rear AC; Accumulator
1988FordAerostarN/Aw/ Rear AC; Accumulator
1987FordAerostar3.0LV6N/Aw/ Factory Air; w/ Rear AC; Accumulator
1986FordAerostar2.8LV6N/Aw/ Factory Air; w/ Rear AC; Accumulator
Directly replaces or cross-references 47 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4220Dorman - HELP — 42590Eastern Catalytic — 41324Four Seasons — 33174Global Parts Distributors LLC — 1411324Monroe Shocks & Struts — 172597Pioneer Automotive Industries — 604523SKF — 16442Standard Ignition — 27597UAC — RD6019CUnity Automotive — 117721AMAC33174738316442D070448A151872151909176019207597208339706025708339014875701927203370602537232174788101713317411133174V191885258891930488919341A8987ABPN8331979ABPN83319079AC2242AC2242CAC2242SAC2242SCCWK706025E69Z19C836BE69Z19C836CED597RD6019T33174YF1861YF2123