A/C Accumulator for 1995-2002 Peterbilt 357 & More - Four Seasons 33221

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$41.99

MPN: 33221

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Four Seasons A/C Accumulator P/N:33221

$41.99

Description

Keep your air conditioning system dry and clean with the Four Seasons A/C Accumulator (P/N 33221). It drops in as a direct-fit replacement for the 1995-1999 Peterbilt 330, 1995-2002 Peterbilt 357, 1995-1996 Peterbilt 375, 1995-2001 Peterbilt 377, and the 1995-2002 Peterbilt 378, 379, and 385 — see the Buyer's Guide tab for engine-specific applications.

The accumulator/filter drier acts as a filter, removing moisture and contaminants from the A/C system that flushing alone cannot clear, which is why replacing it during service is essential. Moisture absorption is handled by an internal desiccant bag; a leaking or "open" system can saturate that bag within hours and render the unit ineffective.

Quality welds: built for a durable, leak-free design.
High-quality desiccant: provides appropriate moisture absorption inside the system.
Installation hardware included: the necessary gaskets, o-rings, and seal come with the unit for easier installation.
Quality construction: produced in an ISO/TS16949 & ISO14001 certified facility, backed by over 50 years of mobile A/C experience.

Replacing the accumulator/filter drier is required to validate the compressor warranty and should be done anytime the system is opened or serviced.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

What does this A/C accumulator do?

It acts as a filter, removing moisture and contaminants from the air conditioning system that flushing cannot remove, and stores refrigerant on the low-pressure side.

Does it come with installation hardware?

Yes. The necessary gaskets, o-rings, and seal are included with the unit for easier installation.

Which vehicles does P/N 33221 fit?

It's listed for the 1995-1999 Peterbilt 330, 1995-2002 357, 1995-1996 375, 1995-2001 377, and 1995-2002 378, 379, and 385. Check the Buyer's Guide tab to confirm your application.

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

The desiccant bag can saturate quickly if the system is opened or leaks, making the unit ineffective. Replacement is also required to validate the compressor warranty.

How does it absorb moisture?

Moisture is absorbed through an internal desiccant bag. A leaking or "open" system can saturate the bag within a few hours, so replace the unit anytime the system is serviced.