7L0820351B Volkswagen BOX

This box, sometimes called an accumulator or a receiver – drier depending on which system it’s for, basically cleans and filters the refrigerant as it moves through your AC system. It removes moisture and debris, and it stores a little extra refrigerant to help keep things running smoothly. It also acts like a shield, protecting the compressor itself from liquid refrigerant – liquid refrigerant hitting the compressor is bad news. It sits in the high – pressure or low – pressure side of your AC system, usually near the compressor or condenser. It's part of the closed loop where the refrigerant cycles, cooling the air that comes into your cabin. You'll notice if this thing fails because your AC will gradually lose cooling power, or it might start cycling on and off more frequently. Sometimes you’ll hear unusual noises coming from the system as well. It’s super important because it keeps everything protected. Without a good accumulator or receiver – drier, contaminants can damage the compressor, the lines, and other components. Replacing it regularly, or when you do other AC work, is a pretty inexpensive way to prevent much bigger, more costly problems down the road. We carry a good selection of these at Fixparts Online, and it’s something a lot of folks tackle as part of routine maintenance. It’s definitely one of those parts where a little preventative work can save you a lot of headache. Trusted brand, trusted warranty: Box (MPN 7L0820351B) is covered for 12 months!

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