Keep accurate speed data flowing to your transmission control and instrument cluster with the Standard Ignition Automatic Transmission Output Shaft Speed Sensor / Vehicle Speed Sensor SC733. It drops in as a direct-fit replacement for the 1997-2001 Infiniti Q45, delivering the signal your powertrain relies on. This part is listed under both names — Automatic Transmission Output Shaft Speed Sensor and Vehicle Speed Sensor — because it serves that dual role.
- Measures rotation: Reads the speed of the transmission output shaft and reports vehicle speed as an electrical signal to the control module.
- Direct-fit replacement: Designed to install for the listed Q45 applications.
- Signal for key functions: The speed input the module uses for shift scheduling, torque-converter clutch operation, and speedometer readout.
Signs this sensor may need replacing include an erratic or dead speedometer, harsh or erratic shifting, or a related trouble code. These symptoms can have other causes, so diagnose the circuit before replacing — if a failed output-shaft/vehicle speed sensor is the cause, this unit replaces it.
Interchange: SN8435 · SU6587 · VSS1267 · 3270271T17
Manufacturer part number SC733
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the SC733 sensor do?
It measures the transmission output shaft's rotation and reports vehicle speed as an electrical signal the control module uses for shift scheduling and the speedometer.
Will this fit my vehicle?
It is a direct-fit replacement for the 1997-2001 Infiniti Q45. Check the Buyer's Guide tab to confirm it matches your vehicle.
Why is it listed under two part-type names?
It functions as both an Automatic Transmission Output Shaft Speed Sensor and a Vehicle Speed Sensor, so it appears under both names.
What are signs this sensor may need replacing?
An erratic or non-working speedometer, harsh or erratic shifting, or a related trouble code. These can have other causes, so diagnose before replacing.
What numbers does the SC733 interchange with?
It interchanges with SN8435, SU6587, VSS1267, and 3270271T17. Its manufacturer part number is SC733.
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