NTK AU0037 Automatic Transmission Speed Sensor - Input or Output

NTK Automatic Transmission Speed Sensor AU0037

NTK AU0037 is an automatic transmission speed sensor built for Ford, Lincoln, and Mercury applications that require accurate input or output speed signal reporting. It uses a 3-terminal blade connection with a rectangular male connector and includes a wiring harness for a direct replacement-style repair.

Compatible With 2009-2020 Ford, Lincoln, and Mercury transmission speed sensor applications, including Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Edge, Ford Escape, Ford Explorer, Ford Fusion, Ford Taurus, Ford Transit Connect, Lincoln MKC, Lincoln MKX, Lincoln MKZ, Lincoln MKT, Mercury Mariner, and Mercury Milan. Part number AU0037 is also referenced in OE-style cross applications for the same vehicle coverage.

Key Features

• Automatic transmission speed sensor for input and output positions where listed
• 3-terminal blade design with 1 rectangular male connector
• Wiring harness included; harness length measures 9.75
• Built to meet or exceed OE specifications
• Tested under thermal shock, vibration, and OBD verification conditions
• OE application coverage for import and domestic vehicles under the NTK sensor line

Product Line Details

NTK Automatic Transmission Speed Sensor AU0037 is part of NTK’s technical sensor lineup, supported by NGK’s long automotive engineering background. NTK focuses on OE-level sensor coverage for modern drivetrains, including vehicles using connected and automated technologies. This part number, AU0037, reflects that OE-driven approach for transmission speed signal accuracy and application coverage.

Detailed Description

This NTK automatic transmission speed sensor is engineered for vehicles that rely on precise transmission speed data for shifting strategy, drivability, and module feedback. It is a direct-fit style replacement for many Ford Super Duty, Edge, Escape, Explorer, Fusion, Taurus, Transit Connect, Lincoln MKC, MKX, MKZ, MKT, and Mercury Mariner and Milan applications. The sensor’s 3-terminal blade layout, single rectangular connector, and included harness support clean electrical connection at the transmission.

NTK manufactures this sensor to OE specifications and validates it through thermal shock, vibration, and OBD testing. If you are replacing a failing transmission speed sensor on a Ford F-250 Super Duty, Ford F-350 Super Duty, or Ford Explorer, AU0037 provides the correct fitment profile for the listed input or output positions.

This part cross-references Standard Ignition SC631 for the same application.

Common Issues It May Resolve

• Erratic or delayed shifting caused by inaccurate transmission speed input
• Transmission warning lights related to speed sensor signal faults
• Harsh or inconsistent shift behavior from a failing sensor
• Loss of speed signal data to the transmission control system
• Diagnostic trouble codes tied to input or output speed sensor performance

Installation Notes and Tips

• Verify whether your vehicle uses the input or output position before ordering.
• Inspect the connector, terminals, and harness routing before installation.
• Confirm the transmission connector style matches the rectangular 3-terminal blade design.
• Clear diagnostic codes after installation and road test the vehicle to confirm proper signal operation.
• Use the vehicle’s service information for exact sensor location and removal procedure.

Quality Assurance

NTK sensors are produced under OE-focused quality standards and undergo testing for thermal shock, vibration, and OBD verification. AU0037 is manufactured to meet or exceed OE specifications for the listed Ford, Lincoln, and Mercury applications.