MAN diagnostics cable

Jaltest JDC620A — MAN Marine Diagnostics Cable

The JDC620A is a genuine Cojali Jaltest diagnostic cable designed to connect MAN marine diesel engines to the Jaltest marine diagnostic platform. MAN diesel engines power a wide range of vessels — from high-performance sport yachts and express cruisers to commercial patrol boats and work vessels. These are serious, high-output diesel installations, and the JDC620A gives your Jaltest system access to the MAN marine ECU for professional-grade diagnostics.

Listed in the official Jaltest 2025 pricelist at $172 MSRP, the JDC620A is one of the higher-priced marine diagnostic cables in the Jaltest lineup — reflecting the specialized engineering required to interface with MAN's proprietary marine diagnostic port. This cable works with the Jaltest OBD II cable (JDC213M3) or the V9 Interface Link Adapter cable (JDC213.9).

What This Cable Does

The JDC620A enables diagnostic communication with MAN diesel marine engines including:

• Fault code reading and clearing — access stored and active DTCs from MAN marine engine ECUs
• Live data monitoring — view engine RPM, boost pressure, fuel system parameters, temperatures, and other operating data in real time
• Marine diesel diagnostic functions within the Jaltest Marine platform

Link Version Compatibility

• Jaltest Link V8.1
• Jaltest Link V9

How This Cable Connects

The JDC620A has an OBD end that connects to either:

• Jaltest OBD II Cable (JDC213M3)
• V9 Interface Link Adapter Cable (JDC213.9)

Cable Specifications

• Part Number: JDC620A
• Manufacturer: Cojali (Jaltest)
• Cable Length: 11 inches
• Compatible Interface: Jaltest Link V8.1 and V9 (via JDC213M3 or JDC213.9)
• Target Application: MAN marine diesel engines
• MSRP: $172.00 (2025 Jaltest Pricelist)
• Warranty: 1 year

Who Needs This Cable

Marine service shops that service MAN diesel-powered vessels. MAN marine engines are found in the higher end of the market — large sport cruisers, offshore powerboats, patrol and rescue vessels, and charter boats. If your shop handles larger vessels with MAN power, this cable is essential for proper electronic diagnostics. MAN diesel engines are known for their performance and reliability, and maintaining them properly requires the diagnostic access this cable provides.

Why Buy From OEM Diagnostic Tools?

Specialist in professional diagnostic tools since 2016. We carry the full Jaltest Marine cable lineup including specialized cables like the JDC620A for high-end marine diesel applications. Call 866-217-0063 — free shipping, free tech support, full warranty. We can help you determine if the Jaltest Marine Inboard module covers your specific MAN engine application before you order.

Call 866-217-0063 for quick answers and help!