MSD Distributorless Ignition Tachometer Adapters # MSD8913

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Tach Adapter, DIS Ignition Systems, Each MSD distributorless ignition tachometer adapters allow you to install an aftermarket tachometer on vehicles with no distributor and multipl e coil packs. These compact tach drivers measure only 1.5"x 3.5"x 2" and are 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 the wire and converts this information into a 12 volt output signal that most aftermarket tachometers use as a trigger signal. MSD distributorless ignition tachometer adapters can be used on 4, 6 or 8-cylinder engines. Quantity:Sold individually.Notes:Tach adapter can not be used with Capacitive Discharge Ignition. (Such as MSD Ignition control) Voltage on positive side of coil must be below 18 volts. Show more