4IPTA - Sustaining Members

	AAA
	Allied Oil & Supply, Inc
	Auto-jet Muffler Corp.
	Brower School Bus Parts
	Cross Dillon Tire
	Cummins Central Power
	Des Moines Diesel, Inc.
	Durham School Services
	Fairchild Communications Inc.
	First Student
	Fuelmaster
	Hoglund Bus Co., Inc.
	Hydrotex
	Inland Truck Parts & Service
	International Truck & Engine Corporation
	International Truck & Engine Corporation
	Interstate Detoit Diesel, Inc.
	Kansas Bus Connection
	LPS (Logistics & Planning Solutions)
	Lubemaster
	Master's Transportation, Inc.
	Maxon Mobility
	Midwest Bus Parts, Inc.
	Midwest Wheel Companies
	NAPA School Bus
	O'Halloran International
	O'Reilly Fleet & Heavy Duty
	Ottsen / C & C Oil Company
	Petroleum Technology
	Power Cleaner
	Q'Straint
	Ricon
	Sadler Truck Parts
	School Bus Sales Company
	Soundoff Signal
	Specialty Manufacturing Co.
	Thomas Bus Sales, Inc.
	Tracker Systems
	Transpec Worldwide
	United School Bus Seat Service, Inc.
	United Truck & Body
	Versatrans Solutions, Inc.
	Woodland Parts Supply
	Ziegler Power Systems