Four Seasons A/C Receiver Drier 33307
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Four Seasons A/C Receiver Drier P/N:33307

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$45.99
MPN: 33307
Item Package Quantity: 1
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Four Seasons A/C Receiver Drier P/N:33307
Four Seasons A/C Receiver Drier P/N:33307
$45.99

Keep moisture and debris out of your A/C system with the Four Seasons A/C Receiver Drier 33307, a steel filter drier that installs as a direct-fit replacement for the 1986-1988 Kenworth T600A, 1987-1988 Kenworth T800, 1981-1987 Kenworth W900, 1974-1977 Porsche 911, and 1974-1977 Porsche 911 Series. See the Buyer's Guide tab for engine-level applications.

The receiver drier filters the air conditioning system by trapping moisture and contaminants that cannot be removed by flushing, which is why replacing it whenever the system is opened is essential.

  • Steel filter drier: steel construction built for durable, leak-free service.
  • Desiccant absorption: a desiccant bag absorbs moisture from the system; a leaking or open system can saturate the bag within a few hours, so replacement is important during service.
  • Quality welds: welded for a durable, leak-free design.
  • Installation hardware: the necessary gaskets, o-rings, and seal are included for easy installation.

Backed by Four Seasons' decades of mobile A/C experience, this unit is produced in an ISO/TS16949 and ISO14001 certified facility. Replacing the filter drier is typically required to validate compressor warranty and should be done anytime the system is serviced.

Frequently Asked Questions

What does this receiver drier do?

It acts as a filter, removing moisture and contaminants from the air conditioning system — debris that flushing alone cannot remove.

Which vehicles does the 33307 fit?

It fits the 1986-1988 Kenworth T600A, 1987-1988 Kenworth T800, 1981-1987 Kenworth W900, 1974-1977 Porsche 911, and 1974-1977 Porsche 911 Series. See the Buyer's Guide tab for details.

Are gaskets and o-rings included?

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

Why should I replace the filter drier when servicing the A/C?

A leaking or open system can saturate the desiccant bag within a few hours, making the drier ineffective. Replacement is also typically required to validate compressor warranty.

What is this unit made of?

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

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