Keep moisture and debris out of your A/C system with the Four Seasons A/C Accumulator, MPN 33190. It drops in as a direct-fit replacement across a wide 1984 (and 1983-1984 on select medium-duty trucks) GM lineup — including the Buick Regal, Chevrolet C10, C20, C30, El Camino, K5 Blazer and Monte Carlo, GMC C1500, K1500, Caballero and Jimmy, Oldsmobile Cutlass Calais and Cutlass Supreme, and Pontiac Bonneville and Grand Prix. See the "Vehicles it fits" section for the full list of applications.
The accumulator/filter drier removes moisture and contaminants from the air conditioning system — contaminants that flushing alone cannot clear, which is why replacing this unit during service is important.
- Desiccant drying: a desiccant bag absorbs moisture from the system; a leaking or open system can saturate the bag within hours, so a fresh unit is essential after a repair.
- Leak-free build: quality welds for a durable, leak-resistant construction.
- Installation hardware included: the necessary gaskets, o-rings and seal are included for easier installation.
- Warranty note: replacing the accumulator/filter drier is required to validate a compressor warranty and should be done anytime the system is serviced.
Backed by Four Seasons' decades of mobile A/C experience.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
What does this A/C accumulator do?
It acts as a filter drier, using a desiccant to remove moisture and trap contaminants circulating in the air conditioning system that flushing cannot clear.
Does it fit my vehicle?
It's a direct-fit replacement for a wide 1984 (and 1983-1984 medium-duty) GM lineup. Check the "Vehicles it fits" section to confirm your exact year, make and model.
Are gaskets and seals included?
Yes. Four Seasons includes the necessary gaskets, o-rings and seal to make installation easier.
Do I need to replace it when servicing the A/C?
Yes. Four Seasons states the accumulator/filter drier is required to validate a compressor warranty and should be replaced anytime the system is serviced.
Why can't the old accumulator just be flushed?
The contaminants and saturated desiccant it holds cannot be removed by flushing, so replacing the unit is the recommended fix during service.
