New Holland and case series diagnostics cable

Jaltest New Holland TN Series Diagnostics Cable (JDC508.9)

The JDC508.9 is the genuine Cojali Jaltest diagnostic cable for New Holland TN series agricultural tractors — a 9-pin cable designed for V9 Link compatibility that provides full ECU access to the New Holland TN platform through Jaltest AGV software. The New Holland TN series (TN55, TN65, TN70, TN75, TN85, TN95 and similar) were popular utility tractors widely distributed in the US and global markets from approximately 2000 to 2010. If your shop still services these tractors — and many shops do, given how many are still working in the field — the JDC508.9 is the specific cable you need for Jaltest communication.

What This Cable Does

The JDC508.9 connects the Jaltest Link V9 interface to New Holland TN series tractor diagnostic ports, enabling Jaltest AGV software to read and clear fault codes, access live data, and perform supported diagnostic functions on TN-series ECUs.

• Compatible Vehicles: New Holland TN series tractors (2000 to 2010 model years per manufacturer data)
• Connector: 9-pin diagnostic cable
• Compatible Link Version: Jaltest Link V9 (V9 designation in part number)
• Compatible Software: Jaltest AGV platform
• Diagnostic Functions: Read and clear diagnostic codes, live data monitoring, and additional supported diagnostic tasks
• Genuine Cojali Part: OEM manufactured — not an aftermarket cable
• Part Number: JDC508.9
• MSRP: $180.00 (2025 Cojali USA Pricelist)
• Related Cables: JDC507A (CNH 13-pin switch, $65) and JDC511A (CNH Deutsch 9-pin switch, $80) for other CNH platform connections

New Holland TN Series and Jaltest AGV Coverage

The Jaltest AGV kit (part number 29210, $4,500 MSRP) provides dealer-level diagnostic access across 140+ agricultural brands, including the full CNH family — New Holland, Case IH, and Massey Ferguson. New Holland TN series tractors feature electronic engine management, transmission controls, and instrument cluster ECUs that all require proper cable communication for accurate diagnostics. At $180, the JDC508.9 is an investment in access to a model family that many shops see regularly on older equipment service calls.

Who Needs This Cable

Agricultural repair shops, independent technicians, and fleet operations that service New Holland TN series tractors produced between 2000 and 2010. These tractors are 15-25 years old now but remain common working equipment on farms across the country. If you run Jaltest AGV and encounter a TN-series New Holland, the JDC508.9 is the required cable for ECU-level diagnostic access.

Why Buy From OEM Diagnostic Tools?

OEM Diagnostic Tools has specialized in professional diagnostic equipment since 2016. We stock the complete Jaltest cable catalog including cables for older model year equipment coverage. Free shipping on every order, free tech support at 866-217-0063, and full manufacturer warranty on all genuine Cojali cables.

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