Product Bulletin – Caterpillar Oil Pump Written by USMW on 06/14/2018. Posted in Product Bulletins, USMW. New Fuel Pump Modules – Dec. 18, 2017 The latest USMW HD oil pumps for Caterpillar applications are now available. Competitive pricing and rigorous quality control make them the right choice for your next job. fan clutch, fuelpumps, Water Pump Anterior Siguiente