Why a Tach Adapter Matters
Modern ignition systems (and even some older ones) don’t always play nicely with aftermarket tachometers.
Without an adapter, you’ll see:
- No RPM signal at all
- Jumping or erratic readings
- Completely inaccurate RPM display
Which means your tach is basically decorative. Not ideal.
Allows any Auto Meter same old ignition Tachometer or Digital Pro-Shift System gauge, tube, or controller module for use on Distributor-less Ignitions.
Key Features & Functions
Signal Conversion for Tachometers
The Auto Meter 9117 is designed to:
- Convert ignition signals into a readable tach signal
- Ensure compatibility between factory ignition systems and aftermarket gauges
- Stabilize RPM readings
Because not all signals are created equal—and your tach knows it.
Wide Compatibility
This adapter works with a variety of ignition setups, including:
- Distributorless ignition systems
- Coil-on-plug (COP) setups
- Modern electronic ignition systems
Perfect for newer vehicles or engine swaps where signals get… complicated.
Innovative three-layer structure engineered to give protection to the internal of your vehicle with style, safety, and comfort for your day-to-day ride
Allows any Auto Meter same old ignition tachometer, Pro-Shift Lite or RPM activated module for use on distributorless ignition
Fixes Erratic Tach Behavior
If your tach is:
- Jumping around
- Lagging behind
- Showing incorrect RPM
…this adapter cleans up the signal so your gauge behaves like it should.
Compact, Easy-to-Install Design
No need to tear your whole car apart:
- Simple wiring integration
- Small, compact module
- Works inline with your existing setup
It’s one of those “quick fix, big improvement” parts.
These adapters make your installation quick and easy
Let you use any Auto Meter same old ignition tachometer, shift light, or rpm-activated module on so much Supermag and Vertex magneto applications
Reliable Performance
Built with Auto Meter’s proven electronics:
- Consistent signal output
- Durable construction
- Long-term reliability
Because your RPM reading shouldn’t be a suggestion.
Why You Need This Auto Meter 9117 Tachometer Adapter
If you’re running an aftermarket tach—or dealing with an engine swap—you’ve probably already run into signal issues.
The Auto Meter 9117 Tach Adapter gives you:
- Accurate, stable RPM readings
- Compatibility with modern ignition systems
- A fix for dead or erratic tach behavior
- Confidence when shifting or monitoring engine speed
Because missing your shift point due to bad data? That’s just painful.
Designed for vehicles with coil-over-plug ignition systems, and other past due model vehicles where no tachometer output or signal wire is to be had
Ideal Applications
- Engine swaps (especially modern engines into older chassis)
- Vehicles with coil-on-plug ignition
- Distributorless ignition systems
- Aftermarket tach installations
- Anyone dealing with inconsistent RPM signals
Final Verdict
The Auto Meter 9117 Tachometer Adapter is one of those behind-the-scenes parts that makes everything work the way it should.
It’s simple, effective, and solves one of the most common issues with aftermarket tach installs.
Because a tach that lies to you is worse than no tach at all.
There are no reviews yet.