Four Seasons A/C Receiver Drier 33998
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Four Seasons A/C Receiver Drier P/N:33998

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$76.99
MPN: 33998
Item Package Quantity: 1
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Four Seasons A/C Receiver Drier P/N:33998
Four Seasons A/C Receiver Drier P/N:33998
$76.99

Keep your air conditioning system clean and dry with the Four Seasons A/C Receiver Drier 33998, a steel filter drier that drops in as a direct-fit replacement for the listed 2008-2012 Freightliner applications, including the Cascadia, Century Class, Classic, Columbia, FLD-series and M2-series trucks (see the Buyer's Guide tab for the full model-and-year list). Positioned in the high-pressure side of the system, it filters the refrigerant while its desiccant draws moisture and traps contaminants that flushing alone cannot remove — which is why it should be replaced whenever the system is opened for service.

  • Steel filter drier: built with quality welds for a durable, leak-free design.
  • Desiccant absorption: a desiccant bag pulls moisture from the system; a leaking or open system can saturate the bag within a few hours, so replacement at service time is essential.
  • Contaminant filtering: removes moisture and debris that can't be cleared by flushing.
  • Seals included: necessary gaskets, o-rings and seal are supplied for installation.

Four Seasons notes that replacing the filter drier any time the system is serviced is required to validate the compressor warranty. Backed by decades of mobile A/C manufacturing experience.

Frequently Asked Questions

What does this receiver drier do?

It filters the refrigerant and uses a desiccant to absorb moisture and trap contaminants in the A/C system — debris that cannot be removed by flushing alone.

Does it come with seals?

Yes. Four Seasons includes the necessary gaskets, o-rings and seal to help with installation.

Should I replace the drier when servicing the A/C?

Yes. Four Seasons states the filter drier must be replaced any time the system is opened or serviced, and replacement is required to validate the compressor warranty.

What is this drier made of?

It is a steel filter drier, assembled with quality welds for a durable, leak-free design and a high-quality desiccant.

Which vehicles does the 33998 fit?

It fits a range of 2008-2012 Freightliner trucks, including the Cascadia, Century Class, Classic, Columbia, FLD-series and M2-series. See the Buyer's Guide tab for the full list.

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