New, genuine Mazda timing trigger plate from the crank pulley, Mazda MX-5 mk2 & mk2.5.
This is what the crankshaft angle sensor picks up it's signal from. It attaches to the crankshaft bottom pulley. We've had these where one of the pickup tabs has been broken off, this will cause a misfire or a reluctance to start.
NM00838. BP4W-11-408.