Welcome to Humphrey Service Parts

Service Is Our Middle Name

Since 1973, Humphrey Service Parts has been your trusted partner for heavy-duty truck, trailer, and all your heavy duty parts needs. Founded by Orval Mason, we’ve built our business on a simple but powerful philosophy: “There’s no such thing as customer loyalty. If you want to succeed in business, you need to be loyal to your customer.”

At Humphrey Service Parts, we put that philosophy into action every day. Our dedicated team goes above and beyond to ensure you get the parts you need, the first time, the first stop. If we don’t stock the item, our trained staff will find a solution before you walk out the door.



We understand that your time is valuable and your business depends on reliable parts and exceptional service. That’s why we’re committed to tailoring our services to meet your specific needs and keeping your operation running smoothly.