NTK AU0143 Automatic Transmission Speed Sensor - Input or Output

NTK Automatic Transmission Speed Sensor AU0143

NTK AU0143 is an automatic transmission speed sensor built for direct replacement service on select Ford, Mazda, and Mercury vehicles. It supports input and output speed sensing applications and uses a 2-terminal blade-style design with a rectangular female connector for straightforward OE-style integration.

Key Features

• Automatic transmission speed sensor for input and output positions
• Blade terminal type with 2 terminals
• 1 rectangular female connector
• No wiring harness included
• No mounting hardware included
• OE-focused NTK sensor construction for import and domestic coverage

Product Details

NTK AU0143 is part of the NTK Automatic Transmission Speed Sensor line, a technical sensor range backed by NGK automotive experience and OE application knowledge. NTK manufactures these sensors to meet or exceed OE specifications and validates them through thermal shock, vibration, and OBD verification testing. For drivers and technicians servicing a Ford Escape, Mazda Tribute, Mercury Mariner, Mercury Cougar, Ford Contour, or Mercury Mystique, AU0143 provides a direct-fit sensor solution for transmission speed signal replacement.

This part cross-references Delphi SS10699 and Standard Ignition SC325 for the same application.

Common Problems This Sensor Can Address

• Erratic or missing transmission speed signal
• Harsh or delayed shifting caused by incorrect speed input
• Transmission warning lights related to speed sensor faults
• Speedometer or drivability concerns tied to transmission speed data
• Diagnostic trouble codes associated with input or output speed sensor circuits

Installation Notes and Tips

Verify whether the vehicle requires an input or output speed sensor before ordering. Confirm the connector shape, terminal count, and mounting style against the original part, and inspect the transmission connector and harness for corrosion or damage before installation. AU0143 is used on 2001 Ford Escape, input; 2002-2008 Ford Escape, output; 2001-2006 Mazda Tribute, output; 2008-2011 Mazda Tribute, output; 2005-2008 Mercury Mariner, output; 1999-2002 Mercury Cougar, output; 1999-2000 Ford Contour, output; and 1999-2000 Mercury Mystique, output.

Quality Assurance

NTK draws on more than 80 years of automotive experience and OE sensor development to support consistent aftermarket coverage. AU0143 is manufactured and tested to align with OE-level performance expectations for the listed Ford Escape, Mazda Tribute, and Mercury applications.