MSD 8918 Tach Signal GMR Pickup

Genuine MSD part.

One example is to connect the GMR, which stands for Giant Magneto Resistive, to a diesel injector current wire. This will produce a signal that can be used to trigger a tachometer or shift light! Another example is on late-model engine equipped with a coil-on-plug ignition system. One of the coil's primary current wires is simply routed into the pickup clip and GMR converts this pulsing into a 12 volt signal for a shift light!

MSD tachometer signal adapter, part number 8918, supplied new.

Key Features

• Operates with 5-24 volt input for universal applications
• Connect to a diesel injector wire to provide an easy tach installation
• Clip to a coil pack primary lead to produce a stable 12-volt square wave for a tach, shift light or RPM-activated accessory

Fitment

• Universal application — check the specification below

This is a universal component sold by specification rather than by vehicle, so there is no year/make/model list for this product. Match the part number and the specification below against your own engine before ordering.

Specifications

• Brand: MSD
• Manufacturer Part Number: 8918
• Item Type: Electrical
• Product Type: Tach Pickup
• Sub Category: Instrument Panel
• Country of Manufacture: United States
• Condition: New
• Shipping Weight: 0.2 lb

Images are for illustrative purposes. The product you receive may differ in finish or packaging from the photograph.