Diesel Equipment Inc Promo Codes & Coupons September 2026 — Up to 20% Off

Donaldson filters and Donaldson parts for diesel and gas-powered trucks and equipment are the primary offerings of Diesel Equipment Inc which has been selling Donaldson filters since 1959, is now the largest Donaldson distributor in the nation. To better serve their customers, they began carrying a greater number of Donaldson products in their warehouse as they began to expand their product line. Diesel Equipment Inc now have a 7, 000-square-foot work space in Seabrook, New Hampshire, and they hold more products than anyone else in the United States. Since Gregg Fowler bought the business in 2007, he has taken it to new heights. If you are unable to make it to them, they now ship nationwide and even deliver to their local customers. They intend to continue this 60-year tradition and provide the best possible service to their customers.