Product Details: Update your semi truck with proper lubrication across all parts, with the ATD Air Operated High Pressure Grease Pump that ensures you're Ready for the Road Ahead™. With a high-powered delivery method, this replacement pump is able to add proper levels of grease to hard-to-reach components found throughout a vehicle. Manufactured with upgraded pump seals for an extended service life. FleetPride is your First Click in Heavy Duty®.