4-Pin 15326631 Delphi Waterproof 2.8mm Female Connector – GM Sensor & Motorcycle Harness

Direct-fit replacement for Delphi / GM OEM part number 15326631, a 4-pin waterproof 2.8mm Metri-Pack 280 female connector used across GM sensor harness applications and motorcycle electrical systems. The 15326631 is a Delphi-specific part number for a 4-pin waterproof Metri-Pack 280 housing – rated at up to 13A per pin for medium-current sensor and actuator circuits.

Key Specifications

• OEM Part Number: 15326631 (Delphi / GM)
• Pin Count: 4
• Gender: Female (with wire)
• Terminal Pitch: 2.8mm (Metri-Pack 280 series)
• Wire Gauge: 18 AWG (0.5 mm²)
• Wire Length: 5.5 inches (140 mm)
• Waterproof Rating: IP68
• Housing Material: PA66 glass-filled nylon
• Terminal Material: Copper alloy, tin-plated
• Current Rating: Up to 13A per pin

Common Applications

• GM oxygen sensor harness – 4-pin wideband lambda sensor connector
• Fuel injector harness – 4-pin injector connector on GM platforms
• Idle air control (IAC) valve connector
• EGR valve and VVT solenoid harness
• Motorcycle multi-circuit sensor harness

Fault Codes Linked to 15326631 Connector Failure

• P0030 / P0050 – O2 Sensor Heater Control Circuit
• P0131 / P0151 – O2 Sensor Circuit Low Voltage
• P0201–P0208 – Injector Circuit faults (if used for injector harness)
• P0506 / P0507 – Idle Control System RPM (if used for IAC connector)

Frequently Asked Questions

Q: What is the mating male connector for 15326631?
A: The mating male plug in the GM Delphi Metri-Pack 280 series is 15326630 (4-pin male). Verify the male housing part number on your vehicle harness before ordering.

Q: What crimping tool is needed?
A: Use the Kent-Moore J-38125-6 or Delphi 12085271 ratchet crimper for 2.8mm Metri-Pack 280 terminals.

Package Contents

1 × 4-Pin Female Connector (15326631) with 18 AWG wire and terminal insert