Four Seasons A/C Receiver Drier 33997
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Four Seasons A/C Receiver Drier P/N:33997

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$48.99
MPN: 33997
Item Package Quantity: 1
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Four Seasons A/C Receiver Drier P/N:33997
Four Seasons A/C Receiver Drier P/N:33997
$48.99

Keep moisture and debris out of the air conditioning loop with the Four Seasons A/C Receiver Drier 33997, a steel filter drier that installs as a direct-fit replacement across a wide range of Freightliner heavy trucks — including the 2005-2007 Century Class, 2002-2011 Classic, 2002-2009 Classic XL, 2003-2015 Columbia, 2002-2007 and 2010-2015 Coronado, and 2002-2018 M2 106. See the Buyer's Guide tab for the full list of covered models and years.

  • Filters and dries: acts as a filter, removing moisture and contaminants from the A/C system — debris that can't be cleared by flushing, which is why the drier is replaced when the system is serviced.
  • Desiccant absorption: a desiccant bag absorbs system moisture; a leaking or "open" system can saturate the bag within a few hours, making the drier ineffective.
  • Steel build with quality welds: designed for a durable, leak-free unit using high-quality desiccant for appropriate absorption.
  • Install-ready: the necessary gaskets, o-rings and seal are included.

Four Seasons specifies replacing the receiver drier anytime the A/C system is opened or serviced, and notes replacement is required to validate the compressor warranty. Backed by decades of mobile A/C experience.

Frequently Asked Questions

Does the Four Seasons 33997 fit my Freightliner?

It's a direct-fit A/C receiver drier for many Freightliner trucks, including Century Class, Classic, Classic XL, Columbia, Coronado, FLB, FLD and M2 models. Check the Buyer's Guide tab to confirm your exact year and model.

What does the receiver drier do?

It filters moisture and contaminants from the A/C refrigerant using a desiccant bag — debris that flushing can't remove, which is why the drier is replaced during service.

Are gaskets and o-rings included?

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

Do I need to replace the drier when servicing the A/C?

Four Seasons specifies replacing the drier anytime the system is opened or serviced, and notes replacement is required to validate the compressor warranty.

What is the 33997 made of?

It's a steel filter drier with quality welds for a durable, leak-free design and high-quality desiccant for moisture absorption.

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