Ignition Module HEI 4 Pin For GM 1974-88 Chevy Pontiac Olds Buick LX301 D1906HT

4 Pin HEI Ignition Module for GM

This 4 pin HEI ignition module for GM regulates coil primary current and timing, referencing OEM cross-reference numbers LX301 and D1906HT.

Overview

This 4 pin HEI ignition module for GM is designed to replace aging or failing distributor electronics in classic vehicle engines. Engineered for robust voltage switching, this 4 pin HEI ignition module for GM is for classic car owners looking to restore a reliable electrical spark. It ensures clean distributor operation to maintain proper combustion timing across the engine power band.

Built For Performance

• Heavy-duty copper mounting base facilitates rapid heat dissipation from the circuit.
• Solid-state electronic components ensure precise dwell angle and timing control.
• Corrosion-resistant metal terminals promote consistent and clean electrical flow.
• Thermal protective housing shields internal elements from distributor compartment heat.

Fits These Machines

• for Chevy Models (1974 to 1988)
• for Pontiac Models (1974 to 1988)
• for Olds Models (1974 to 1988)
• for Buick Models (1974 to 1988)
• for GM HEI Distributors (1974 to 1988)

On-The-Job Use

• Replacing degraded ignition modules that cause hot-starting or stalling issues.
• Rebuilding classic distributor assemblies during high energy ignition restorations.
• Ensuring stable primary current flow to prevent engine misfires at high engine speeds.

Specs At A Glance

Good To Know

Q: Why is thermal grease included, and must it be used? A: Thermal grease is critical because it transfers heat away from the module to the distributor body to prevent electronic burnout.

Q: What are the primary symptoms of a failing ignition module? A: Common signs include engine stalling when hot, crank-no-start conditions, and random engine misfires during operation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.