Part fit just like original equipment.No issues at all.Quick deliveryIt's always hard to tell these days when you buy parts that cost sometimes hundreds of dollars less than OEM parts whether or not they'll work and if they do then how long will they last? As for this part, I installed it and so far tests show it working fine.I was finally able to get a mechanic to install this part Oct 17th and have had problems ever since with the engine not running right.I bought it Sept 20th and had to switch 2 wires on the harness after calling CDI Electronics to verify. The company had placed them in the wrong positions on the plug.My wires on the original part were corroded and needed replaced but the motor was running top notch no problems.My mechanic on Monday Dec 16th is going to swap this new part for another one.Is there a manufactures warranty or how does Amazon do a refund if this part is broken/defectThank YouFit perfectly as advertised. Had some questions, tech support was awesome!Good, got the boat running.Perfect fit for my Mercury 240 EFI M2 motor.Resistance tested item before installing. Failed ohms test, item did not work. But Amazon allows returns on Outboard ignition parts which is awesome.Purchased for a friend. Perfect