GM GT150 3-Pin Electric Oil Pump Connector – OEM 15326808 / 13519047 / 15326813 | With Wires
Direct OEM-specification replacement for the GM GT150 series 3-pin connector used on electric oil pump and oil pressure sensor harnesses. Cross-references OEM part numbers 15326808, 13519047, and 15326813. Supplied with pre-wired leads for direct splice-in repair. Used across Chevrolet, Buick, and GMC platforms with electric oil pump systems. Available with wires or bare.
The GT150 is a Delphi / Aptiv connector series used by GM for medium-current engine management and body control applications. The “GT” designation indicates the connector family, and “150” refers to the 1.50mm terminal pitch. The GT150 series is used extensively in GM engine harnesses for sensors and actuators requiring a compact, sealed connector with reliable contact at operating temperatures up to 125°C.
| OEM Number | Application |
|---|---|
| 15326808 | GM GT150 3-pin connector — variant A |
| 13519047 | GM GT150 3-pin connector — variant B |
| 15326813 | GM GT150 3-pin connector — variant C |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | +12V power to electric oil pump motor | Oil pump not running, P0524 — oil pressure too low |
| 2 | Oil pump speed control signal (PWM from ECU) | Oil pump running at fixed speed, P0521 — oil pressure range |
| 3 | Ground / oil pump motor earth return | Oil pump not responding to ECU control, oil pressure warning |
| Attribute | Detail |
|---|---|
| Pin Count | 3-Pin |
| Series | GM GT150 (Delphi / Aptiv) |
| OEM Part Numbers | 15326808 / 13519047 / 15326813 |
| Housing Material | High-temp nylon (PA66), waterproof sealed |
| Wire Option | With pre-wired leads (splice-in repair) |
| Application | Electric oil pump harness, oil pressure sensor harness |
| Compatible Brands | Chevrolet, Buick, GMC |
| Code | Description |
|---|---|
| P0521 | Engine oil pressure sensor / switch — range/performance |
| P0524 | Engine oil pressure too low |
| P0522 | Engine oil pressure sensor — circuit low |
Q: My GM has P0524 oil pressure too low but the oil level is correct — is it the connector?
A: P0524 with correct oil level on GM vehicles is frequently caused by a corroded 3-pin electric oil pump connector rather than a failed oil pump or low oil pressure. A corroded power pin (Pin 1) causes the electric oil pump to stop running, triggering the low oil pressure fault. Inspect the connector before replacing the oil pump.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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3 Pin Connectors
