Four Seasons A/C Receiver Drier 33429
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Four Seasons A/C Receiver Drier 33429
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Four Seasons A/C Receiver Drier P/N:33429

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$47.99
MPN: 33429
Item Package Quantity: 1
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Four Seasons A/C Receiver Drier P/N:33429
Four Seasons A/C Receiver Drier P/N:33429
$47.99

Help clear moisture and contaminants from your air conditioning system with the Four Seasons A/C Receiver Drier / Filter Drier, part number 33429, a steel filter drier that removes contaminants flushing alone cannot. It fits many vehicles, among them the 1991-1993 BMW M5, 1987 BMW L6 and 1987 BMW L7, and serves as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.

  • Filters the A/C system: Removes moisture and contaminants from the air conditioning system. Flushing cannot remove these contaminants, so replacing the drier is essential.
  • Desiccant bag: High-quality desiccant absorbs moisture in the system. A leaking or open system can saturate the bag within a few hours, which makes the drier ineffective.
  • Steel body with quality welds: The welds give the unit a durable, leak-free design.
  • Installation seals included: The necessary gaskets, o-rings and seal come with the drier for easier installation.

These units are produced in an ISO/TS16949 and ISO14001 certified facility and are backed by more than 50 years of Four Seasons mobile A/C experience. Replacing the drier is required to validate the compressor warranty. It must also be replaced any time the A/C system is serviced. The unit may need replacing if the system has been opened, has leaked, or no longer cools properly. Diagnose the cause before you replace parts.

This part is listed as both an A/C receiver drier and a filter drier.

Frequently Asked Questions

What does the Four Seasons 33429 receiver drier / filter drier do?

It removes moisture and contaminants from the A/C system. A desiccant bag inside absorbs moisture, and the unit filters out contaminants that flushing cannot remove.

Which vehicles does the Four Seasons 33429 fit?

It fits many vehicles, among them the 1991-1993 BMW M5, 1987 BMW L6 and 1987 BMW L7. Check the Buyer's Guide tab for the full list.

What comes in the box?

The drier comes with the necessary gaskets, o-rings and seal for installation.

When should the receiver drier / filter drier be replaced?

It must be replaced any time the A/C system is serviced, and replacing it is required to validate the compressor warranty.

Why does a leaking or open A/C system matter for the drier?

A leaking or open system can saturate the desiccant bag within a few hours. Once saturated, the drier no longer absorbs moisture effectively.

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