This tachometer driver converts the 5-volt 58X crank sensor signal from any GM Gen IV LS-based V8 engine into a standard 12-volt signal that can be used by most aftermarket and OEM tachometers. A simple four-wire hookup makes installation easy with connections for power, ground, signal input, and signal output. No cutting or modifying the factory fuel injection harness is required.

Designed to work with any 12-volt negative-driven tachometer, this compact module provides a clean and reliable way to add a functioning tach to Gen IV LS swaps using 4.8L, 5.3L, 6.0L, and 6.2L engines.

Sold as a complete kit.

• Converts 5-volt 58X crank sensor output to a 12-volt tach signal
• Works with most aftermarket and OEM tachometers
• True plug-in design with no harness modification
• Four-wire hookup: power, ground, signal in, signal out
• Compatible with all GM Gen IV V8 engines