Our customer service is second to none. Partnering with certified service networks, we leverage a broad range of services to help build, maintain and run your fleet more efficiently—reducing costs, extending fuel range and increasing vehicle uptime. When you need help, you can call us from anywhere in the USA, and we’ll help get your truck serviced, generally within a 24-hour period.
Having the best technology, knowledge, experience and service in the industry makes it possible for us to offer the best warranty in the industry. We stand behind every product we make with a 2-year 200,000-mile warranty for fuel module systems and 2-year 100,000 mile warranty for tanks.Learn More
Find answers to commonly asked questions about Quantum products and services.
We’re committed to service that’s as innovative and user-friendly as our products. If there is anything we can help you with, don’t hesitate to contact us.
Need technical support assistance? Save time by starting your support request online.Contact Service
Service available 7:00 am to 4:00 pm PST. Call us and our service team will be happy to assist you.