The Jaltest JDC604M Mercury 10 Pin Cable is a dedicated diagnostic adapter for communicating with MEFI 1–4 (Motorola EFI) systems used on Mercury and MerCruiser marine engines. Its 10-pin connector provides direct, stable data communication with the engine control unit (ECU). Fully compatible with Jaltest Marine diagnostic tools, this cable supports advanced diagnostics such as reading and clearing fault codes, live data monitoring, sensor analysis and system tests. Jaltest multi-brand diagnostics helps speed up maintenance and repair workflows.

Built for reliable use in harsh marine conditions, JDC604M is an essential connection accessory for professional workshops working on Mercury and MerCruiser engines.