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Welcome to, the online division for Heavy Duty Bus Parts, Inc.

For over 40 years the Billingsley family has made it a common goal to increase their knowledge of the industry, while expanding the product line to meet the current needs and demands of those working to provide safe pupil transportation.

Started in 1968 as a school bus parts manufacturer, Billingsley Parts quickly became a well-known, respected name in the industry. With ongoing research of products and the market, the family expanded the business by opening the doors of Heavy Duty Bus Parts, Inc. (HDBP) in 1996.

HDBP is the leader in providing supplier direct prices for OEM and Aftermarket Parts. We offer same-day shipping and outstanding customer service, as well as online ordering at was launched in 2001 as the online division of HDBP. Visit the site for all of your ordering needs, inspection checklist, instructional videos and more. Don't forget to check back monthly for the Direct Deal – an item that is drastically marked down just for that month!

HDBP is a proud member of NASDPTS, NAPT, ASBC, and many of the 50 state affiliate and regional transportation organizations. We appreciate YOU - the customer and the many people working diligently for the safety of our children.

Contact Information
Heavy Duty Bus Parts, Inc.
17850 Interstate 45 N
Willis, TX 77318

Phone: 1.800.505.2300
Fax: 1.936.344.9963

Customer Service Hours:
Monday - Friday: 7:30AM to 4:00PM CST

Email us at: