About HDiag
Your Reliable Partner for Diesel Diagnostic Tools & Heavy Equipment Solutions
HDiag is a professional supplier specializing in diesel diagnostic tools, ECU/ECM systems, and construction machinery parts for global B2B customers. With years of industry experience, we have evolved from a parts supplier into a comprehensive solution provider integrating hardware, software, and technical support.
Today, we serve customers worldwide including repair workshops, fleet operators, construction companies, and industrial service providers.
Our Mission
We are committed to helping our customers solve real-world equipment problems efficiently by providing reliable products, professional technical support, and long-term service partnerships.
Diesel engine diagnostic tools for trucks, machinery, and generators
ECU / ECM modules and programming solutions
Pre-installed diagnostic software and ready-to-use systems
Customized hardware + software solutions based on your market and models
Our Core Strengths
Complete Solutions
All products are delivered as ready-to-use solutions with software pre-installed, saving your time and effort.
Customization
We provide tailored configurations based on your vehicle types, regions, and specific requirements.
Fast Delivery
Most in-stock products can be shipped within 48 hours. Clear timelines are provided for custom orders.
Full Process Tracking
From order confirmation to delivery and customs clearance, we provide full logistics tracking.
Technical Support
We offer ongoing support including installation guidance, troubleshooting, and software compatibility advice.
After-Sales Service
We provide long-term consultation and 12-month warranty for most products.