HDS started in a working diesel shop, not a marketing department. Our founders spent years buying diagnostic equipment the way everyone does: inflated prices, hidden renewals, software that arrived as a download link and a shrug. We built the company we wanted to buy from.
What we do
We supply dealer-level truck diagnostic tools to owner-operators, independent shops and fleets: pre-configured laptop kits, genuine OEM software licenses, multi-brand platforms, and every adapter and cable that connects them. Every product ships tested; every page shows real pricing; every support call reaches a technician.
Our standards
- Genuine only. No cracked software, no clone adapters presented as real. The failure modes cost more than the savings — we've documented them on this site.
- Published pricing. Hardware, software, renewals — itemized. The niche's 'call for price' habit is a tax on buyers; we don't collect it.
- Technician support. Our support line is staffed by people who have performed the procedures they advise on.
- Education first. 100+ free guides, fault-code pages and tools on this site — because an educated customer buys the right tool once.
Who we serve
Owner-operators clearing their first derate, mobile techs building businesses, independent shops competing with dealers, and fleets standardizing maintenance — across North America and, through our Chinese-truck and off-highway lines, emerging markets worldwide.
Frequently Asked Questions
Are you affiliated with Cummins, PACCAR or other OEMs?
We're an independent supplier of genuine OEM-licensed software and hardware, sourced through authorized distribution. Independence is the point: we can compare platforms honestly because we sell them all.
Where are you located?
We ship across North America from US warehouses and support customers worldwide via remote sessions. Chinese-truck and emerging-market customers are served through our international support desk.