GM MAP Sensor Connector — Aptiv/Delphi 12020403 Green 3-Way

Aptiv/Delphi Weather Pack green 3-way sealed male connector commonly used with Delco manifold absolute pressure (MAP) sensors. Ideal for MAP-sensor repairs, engine swaps, standalone harnesses, and custom automotive wiring.

Choose your configuration:

• Connector Kit: Green 3-way male housing with three matching terminals and wire seals.
• 12-Inch Pigtail: Connector assembled with three 12-inch automotive-grade wire leads, ready to splice into your harness.

Specifications and common applications:

• Aptiv/Delphi part number: 12020403
• Connector family: Weather Pack
• Positions: 3
• Style: Male, sealed
• Color/key: Green
• Maximum current: 20 amps per circuit
• Commonly used with Delco 1-bar MAP sensors
• Common on 1993–1997 GM LT1/LT4 and various TPI/TBI applications

Match the part number, color, cavity arrangement, keying, latch, and connector shape to your sensor before ordering. MAP connector styles can vary by vehicle, engine, and sensor.