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Four Seasons A/C Accumulator P/N:33143

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$31.99

MPN: 33143

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Four Seasons A/C Accumulator P/N:33143

$31.99

Description

Keep your A/C system dry and cooling cleanly with the Four Seasons A/C Accumulator 33143. It installs as a direct-fit replacement for the 1991-1993 Buick Commercial Chassis and Buick Roadmaster, 1991 Chevrolet Caprice and Chevrolet Commercial Chassis, and 1993 Cadillac Fleetwood — see the Buyer's Guide tab for the full engine-level fitment. Mounted on the low-pressure suction side of an orifice-tube system, the accumulator stores liquid refrigerant, traps moisture, and filters out debris so it can't circulate back to the compressor.

Moisture & contaminant control: a desiccant bag absorbs moisture while the unit filters contaminants that system flushing cannot remove.
Leak-free build: quality welds are used for a durable, leak-resistant design.
Installation hardware included: the necessary gaskets, O-rings, and seal are included for the job.
Compressor protection: replacing the accumulator/filter drier any time the system is opened is required to validate the compressor warranty.

A saturated or contaminated desiccant is a common reason to replace this unit — an open or leaking system can saturate the bag within hours, leaving it unable to protect the rest of the components. Diagnose the cause of any A/C issue before servicing.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

What does an A/C accumulator do?

It sits on the low-pressure suction side of the system, stores liquid refrigerant, absorbs moisture through a desiccant, and filters contaminants so they don't reach the compressor.

Does this accumulator include installation hardware?

Yes. The necessary gaskets, O-rings, and seal are included for installation.

Which vehicles does the 33143 fit?

It's a direct-fit for the 1991-1993 Buick Commercial Chassis and Roadmaster, 1991 Chevrolet Caprice and Commercial Chassis, and 1993 Cadillac Fleetwood. Check the Buyer's Guide tab to confirm your vehicle.

Why should I replace the accumulator when servicing the A/C?

An open or leaking system can saturate the desiccant within hours, making the unit ineffective. Replacement is also required to validate the compressor warranty.

Can flushing clean the accumulator instead of replacing it?

No. The contaminants and saturated desiccant it holds can't be removed by flushing, so the accumulator/filter drier should be replaced when the system is serviced.