The Donaldson Air Filter is the perfect choice for heavy duty applications. It is designed to protect your truck equipment with proper filtration and features the Pleatloc™ feature which ensures uniform pleat spacing and prevents media from bunching to promote a longer service life. The reliable, leak-resistant Radial Seal™ keeps the filter in place even under heavy vibration. The high-efficiency cellulose media performs across a wide range of heavy duty engine applications. FleetPride is your First Click in Heavy Duty®.