For over 30 years ACI Supply Company has been your one stop shop for all your truck, trailer, and bus parts. With our enormous inventory, and affiliation with Heavy Duty America (HDA) we have full access to any part for any brand. As part of our extensive inventory we carry a fully stocked hydraulic hose department, a full line of Fram filters, and a complete line of Starr lighting. ACI Supply Co. can provide parts for all buses in your school’s fleet, as well as transit and independently owned buses.  As part of our extensive inventory we carry a fully stocked hydraulic hose department, a full line of Fram filters, and a complete line of Starr lighting. ACI Supply Co. can provide parts for all buses in your school’s fleet, as well as transit and independently owned buses.  At ACI Supply Co. we are committed to providing you with the greatest selection, highest quality, and the best customer service to get you in and out, and back on the road. All of us at ACI thank you for your patronage in the past, and hope to see you in the future.  Please check out our Parts Specials!