About Marine Diagnostic Tools
Independent marine pros deserve dealer-level diagnostics. We make sure you have them.
You did not get into marine repair to be locked out of your own work. But if you have spent more than a few seasons as a tech, shop owner, or marina service manager, you know the routine. A vessel comes in with a fault you cannot read. The OEM tool costs more than the job. The dealer is booked three weeks deep. Your customer is on a schedule, and your reputation is on the line every hour that boat sits at the dock.
Marine Diagnostic Tools exists because that situation is not just frustrating. It is broken.
We understand the dock
We have watched independent shops turn away work they should have won because their toolbox stopped at the OEM firewall. We have seen owners pay premium dealer rates for problems an afternoon of dock time should have solved. We have heard from techs who bought a "universal" diagnostic tool only to find it could read codes but could not actually fix anything.
That is the problem MDT was built to solve. Not a marketing angle. Not a brand story. A working problem that costs the marine industry real money every day.
Trusted by people who cannot afford to guess
Our customers include independent boatyards, multi-location dealer service departments, charter and fleet operators, government and military fleets, and academic marine programs. A few names you will recognize:
- United States Air Force
- Texas A&M University
- Florida State University
- Kings Marine
- JD Marine
- Gig Harbor
The platform behind those relationships is Jaltest Marine, the broadest multi-brand marine diagnostic system in the world. Jaltest covers more than 75 marine brands and 1,383 models, with 80 to 90 percent of full OEM functionality on the engines it supports. That includes fault diagnostics, live data, parameter resets, calibrations, sea trial logging, wiring diagrams, repair information, and the procedures techs actually need on the dock.
What our customers say
"Saves money, saves time. It's the #1 tool I have. It's such a valuable tool to me right now because it's efficient. It makes me efficient. It makes me a better technician. I don't have to pay another technician to bring a specialty factory diagnostic tool. All the information is right there. And the support is stellar. It's been great."
Reynaldo Gutierrez, First Gear Marine
Built and supported from Irmo, South Carolina
MDT is led by Jon Logan, President, alongside a team that includes Tim Beatty (Product Owner), Jason Conner (Sales Executive), and Kassie Judy (Tech Support and Fulfillment). When you call MDT, you talk to a US-based team that picks up the phone and stays on it until your problem is solved.
Unlimited support calls. Remote sessions over TeamViewer when you need a second set of eyes. Software updates three times a year so the platform keeps pace with new engine releases. In-house 36-month financing with no banks, no third-party lenders, and no credit check. A 30-day money-back guarantee tied to completing the included training, because a tool that sits in a drawer is not a tool we sold you.
How working with MDT actually goes
We call it the Marine Mechanic Method™. Three steps.
- Choose your kit. Master Kit for full diesel and gas coverage, Gas Pro Kit for outboard and inboard gas work, or the MDT Mini Kit for compact mobile diagnostics. Use the Kit Finder or call us and we will steer you right.
- Step onboard. Online training at your own pace, plus a 1-on-1 live training session and weekly live onboarding calls. Your team is productive on day one.
- Diagnose with confidence. Read codes, clear faults, log sea trials, pull repair information, and stop sending paying work back to the OEM dealer.
What changes after you have MDT
You stop turning away jobs. Your shop becomes the operation in your region that other techs call when they are stuck. Your customers get their boats back faster. Your revenue stops leaking to the dealer down the road.
Never guess a marine engine issue again.