Four Seasons A/C Accumulator P/N:33155
Keep your A/C system clean and dry with the Four Seasons A/C Accumulator 83207. Combining accumulator and filter-drier functions, it drops in as a direct-fit replacement for the 1999-2007 GMC Sierra and Sierra 1500, 2007 GMC Sierra 1500 Classic, 2001 GMC Sierra 2500 HD and Sierra 3500, 1999-2002 Chevrolet C1500, 1999-2007 Chevrolet Silverado 1500, 2007 Chevrolet Silverado 1500 Classic, and 2001 Chevrolet Silverado 2500 HD and Silverado 3500. See the Buyer's Guide tab for engine-level details on the full list.
Replacing the accumulator / filter drier is required to validate compressor warranty and should be done anytime the system is opened or serviced, since a leaking or "open" system can saturate the desiccant bag within hours and leave the unit ineffective.
What does this accumulator do?
It acts as a filter-drier, using a desiccant bag to absorb moisture and remove contaminants from the A/C system that flushing cannot clear.
Are seals included?
Yes. The necessary gaskets, o-rings and seal are included to help make installation easier.
Does my vehicle fit?
It's a direct-fit replacement for the listed 1999-2007 GMC Sierra, Chevrolet Silverado 1500 and related trucks. Check the Buyer's Guide tab to confirm your vehicle.
Should I replace it when servicing the A/C?
Yes. Four Seasons states replacement is required to validate compressor warranty and it must be replaced anytime the system is serviced or has been open.
Why can't the old unit just be flushed?
The contaminants and saturated desiccant cannot be removed by flushing, so replacing the accumulator / filter drier is necessary to keep the system's moisture control working properly.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.