2-Pin Transmission Speed Sensor Connector – OEM 0260120051 / 2137256-1 / QR019CHA
Direct OEM-specification replacement for the 2-pin waterproof connector used on automatic transmission input and output shaft speed sensors. Cross-references OEM part numbers 0260120051, 2137255-1, 2137256-1, 2050181-1, and QR019CHA. Available bare or with 15cm pre-wired leads.
| OEM Number | Type |
|---|---|
| 0260120051 | Bosch / ZF transmission sensor connector |
| 2137256-1 | TE Connectivity housing — female |
| 2137255-1 | TE Connectivity housing — male |
| 2050181-1 | TE Connectivity alternate |
| QR019CHA | Cross-reference / aftermarket code |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | +5V or +12V reference / power to sensor | P0720 / P0715 — speed sensor circuit malfunction |
| 2 | Signal output to TCM / ECU | P0721 — range/performance, erratic shifting |
| Attribute | Detail |
|---|---|
| Pin Count | 2-Pin |
| OEM Part Numbers | 0260120051 / 2137256-1 / QR019CHA |
| Housing Material | Nylon (PA66), waterproof sealed |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Automatic transmission input/output shaft speed sensor |
| Code | Description |
|---|---|
| P0715 | Input/turbine shaft speed sensor — circuit malfunction |
| P0720 | Output shaft speed sensor — circuit malfunction |
| P0721 | Output shaft speed sensor — range/performance |
| P0722 | Output shaft speed sensor — no signal |
Q: My automatic transmission shifts erratically and has P0720 — is it the connector?
A: P0720 (output shaft speed sensor circuit) is frequently caused by a corroded 2-pin connector at the transmission speed sensor rather than a failed sensor or TCM. The TCM uses the output shaft speed signal to calculate shift points — a missing signal causes erratic or harsh shifting. Inspect the connector before replacing the sensor.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
Be the first to know about new collections and special offers.
2 Pin Connectors
