MSD Distributorless Ignition Tachometer Adapters 8913

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Ever wonder how you can install an aftermarket tachometer on a vehicle with no distribu?¡tor and multiple coil packs? MSD has the answer with the Distributorless Tach Driver! The c ompact Tach Driver measures only 1.5" x 3.5" x 2" and is potted with a polyurethane compound for vibration and water protection so it can easily be mounted under the hood. It wires inline on the coils' 12 volt supply wire where it senses the current going through this wire and converts this information into a 12 volt output signal that most aftermarket tachometers use as a trigger signal. It can be used on 4, 6 or 8-cylinder engines. Features: Easily connect a tachometer to a coil-per-cylinder ignition. Also can be used to drive other rpm controlled devices. Compact housing is easy to mount. Show more