Autometer Tach Filter Adapter

This AutoMeter tachometer filter adapter is designed to clean up a jumpy or erratic tachometer signal. If your tachometer needle is bouncing around or spiking erratically, it's often due to a noisy signal coming from your ignition system, especially with older points-style ignitions or some aftermarket electronic setups. This adapter acts as a buffer, smoothing out that signal so your tachometer can display a steady and accurate reading.

It's a straightforward way to get a more reliable tachometer reading without needing to replace the gauge itself. The adapter works by filtering out the electrical noise that can interfere with the tachometer's operation. This is particularly helpful for vehicles used in racing or competition where precise engine monitoring is crucial, but it's also a great fix for street rods and muscle cars experiencing this common issue.