This is a genuine Mercury Marine Quicksilver factory OEM part, not aftermarket
OEM Mercury / MerCruiser diagnostic harness (part number 84-822560A2, sometimes shown as 84-822560A-2) - a factory MerCruiser harness used to connect the engine ECM to a diagnostic scan tool (DDT/diagnostic tester)
The part MerCruiser 84-822560A2 is described as a diagnostic tester harness used with engines that utilize the MEFI (Marine Electronic Fuel Injection) system - specifically MEFI 1, MEFI 2 and MEFI 3 ECM models.
Purpose: Diagnostic tester harness - connects DDT scan tool to engine control module (used for MEFI systems)
Commonly used with MEFI 1, MEFI 2 and MEFI 3 ECM models.
Compatible Engines & Serial Number Ranges
This is in new condition please see pictures for the exact item you will receive.