FAQ - When Is It Time To Change Out My Truck's Air Dryer?

Depending on how often you’re using your truck along with what you’re towing, your heavy duty truck’s air dryer needs to be replaced in different intervals. Keeping up-to-date with your air dryer maintenance can save you a lot of money in the long run as your truck’s air system will remain clean and it’s performance will continue to be top notch. The consequences of not regularly servicing your air dryer can result in oil entering your air lines and can cause a host of problems including affecting the air discharge cycles and reducing the life of the air hoses because of a build up of oil.

As an industry leader in providing air dryers, Bendix suggests different replacement periods for different heavy duty trucking applications – standard, medium and high.

For the standard trucking level which is typically pick up/delivery operations, Bendix suggests you replace your air dryer every 200,000 miles, or 24 months. In this application, you should also be checking for moisture in the dryer every 25,000 miles, or three months.

For those trucks in the medium trucking level who perform light transit or pull double trailers, you should replace your air dryer every 150,000 miles or 18 months. Additionally, the medium air-usage trucks should also check for moisture every 12,000 miles or two months.

Finally, for the highest air-usage heavy duty trucks, Bendix suggests changing the air dryer every 100,000 miles or 12 months. These applications include garbage trucks, school busses and many others. These high air-usage trucks will need to be inspected for moisture and air reservoir draining every 6,000 miles or 1 month.

While these might be standards suggested by Bendix, it’s important to take into consideration the age of your truck along with its specific needs.

If you’re needing assistance with your truck air dryer maintenance, make sure to contact the truck repair and maintenance professionals at Blaine Brothers.