The OE-CONNECT 18 is designed to integrate seamlessly with GM 18-pin factory plugs used in many 1970s–early 1980s vehicles. It simplifies gauge installation by allowing a clean connection to your original harness while supporting modern Intellitronix digital clusters.
 
Key Features:
Compatible with select GM 18-pin connectors.
Use open pin locations for additional gauge wiring.
Recommended to replace old oil, temp, and fuel wires for accurate readings.
Supports both snap-in and mechanical connection types (cable tie included).
Includes instructions for checking power, ground, and signal integrity.
Optional alternator exciter jumper setup and ground trigger conversion guide.
 
Ensure all pins align correctly before installation. Clean and grease connections for best performance.
 
Vehicle Fitment:
73-87 Chevy/GMC Truck
73-88 Monte Carlo
73-77 Chevelle
78-87 Buick Regal
70-72 Ford Truck
69-70 Mustang
71-78 Mustang (Base)
77-90 Chevy Impala
80-86 Ford Truck/Bronco
 
Other Vehicles not covered under these instructions.
78-81 Mustang Sweep (base)
75-88 El Camino
75-91 Ford Ecoline Van
78-81 Malibu Sweep Dash
72-76 Ford Torino