- A heavy-duty truck diagnostic scanner works hard to maintain your HD truck’s performance. But not all truck scanners work the same or work for every HD truck.
Here’s a look at the four best heavy-duty truck scan tools on the market today.
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Description: JPRO Professional Truck Diagnostic Tool Heavy-Duty Medium-Duty Truck Scanner
Item No. CA398
(23) - Market Price:
US$741.60
Promotion Price:
US$618.00 
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Description: John Deere Service Advisor Agriculture workshop service manual, repair manual, electrical wiring diagram, hydraulic diagram, diagnostic, assembly and disassembly engine, transmission.
Item No. CA384-4
(20) - Market Price:
US$1,408.80
Shop Price:
US$1,174.00
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Description: New Cummins engine diagnostic tool Cummins INLINE 7 Data Link Adapter has a faster processor, more robust algorithms, larger memory buffers and more sophisticated filtering than previous models while simultaneously accessing multiple vehicle data channels
Item No. CA360-1
(24)
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Description: NEXIQ-2 USB Link + Software Diesel Truck Interface and Software with All Installers
Item No. CA209-4
(31) - Market Price:
US$152.40
Shop Price:
US$127.00