Keep your A/C system dry and clean with the Four Seasons A/C Receiver Drier 33989, a steel filter drier that drops in as a direct-fit replacement across a wide range of heavy-duty Kenworth and Peterbilt trucks — including the 2008 Kenworth C500, 2008-2013 KW45, 2008-2012 T270, 2010-2013 T400, 2010-2013 W900, and the 2009-2013 Peterbilt 365, 386 and 389. See the Buyer's Guide tab for the full list of 27 applications and their engine details.
The receiver/filter drier acts as a filter, removing moisture and contaminants from the air conditioning system — the kind of debris that flushing alone cannot remove, which is why replacing the drier is essential whenever the system is opened.
- Steel filter drier: built with quality welds for a durable, leak-free design.
- High-quality desiccant: a desiccant bag absorbs moisture in the system for appropriate absorption.
- Installation hardware included: the necessary gaskets, o-rings and seal are included for easy installation.
A leaking or "open" system can saturate the desiccant bag within a few hours, making the drier ineffective, so replace it any time the system is serviced. Four Seasons notes that replacing the accumulator/filter drier is required to validate the compressor warranty. Backed by over 50 years of mobile A/C experience.
