Standard Ignition SC305 Automatic Transmission Output Shaft Speed Sensor

Automatic Transmission Output Shaft Speed Sensor

Standard Ignition SC305 is a direct-fit automatic transmission output shaft speed sensor and vehicle speed sensor replacement for select Ford, Lincoln, and Mercury applications. It is built with OE-style fitment to simplify installation and uses durable materials for service in demanding transmission environments.

• Direct-fit OE replacement for the transmission output shaft speed sensor location
• Mounted on the transmission with bolt-mount installation
• Female square plug-in connector with 2 male pin terminals
• Built with materials selected to withstand extreme operating conditions
• Tested for electrical and functional reliability before release
• Standard Ignition SC305 for transmission speed signal restoration

Detailed Application Coverage

This sensor is used in automatic transmission speed sensing systems on 2004-2014 Ford E-150, 2004-2014 Ford E-250, 2004-2014 Ford F-150, 2004-2011 Ford Crown Victoria, 2004-2011 Lincoln Town Car, 2004-2011 Mercury Grand Marquis, 2004-2009 Ford E-350 Super Duty, 2004-2009 Ford Expedition, 2006-2008 Lincoln Mark LT, 2004-2005 Ford E-150 Club Wagon, 2004-2005 Ford E-350 Club Wagon, 2005 Lincoln Navigator, 2004 Ford F-150 Heritage, and 2004 Ford Mustang. Standard Ignition SC305 is a practical OE-style replacement when the transmission output speed signal needs to be restored on these vehicles.

This part cross-references Dorman - OE Solutions 917-651 for the same application.

What It Helps Resolve

• Erratic or missing vehicle speed signal from the transmission
• Harsh, delayed, or inconsistent shifting caused by speed sensor faults
• Illuminated transmission or powertrain warning lights tied to sensor input
• Speedometer operation issues related to output shaft speed feedback
• Diagnostic trouble codes associated with transmission speed sensor performance

Installation Notes and Tips

SC305 mounts on the transmission and uses a square, plug-in female connector with two male pin terminals. Confirm connector shape, terminal style, and mounting location against the original sensor before installation. Inspect the harness connector and transmission case opening for corrosion, damage, or debris that could affect the new sensor’s signal.

Quality Assurance

Standard Ignition manufactures this transmission output sensor with in-process quality control and extensive testing to support reliable operation. The part is produced as a direct-fit OE replacement for consistent installation and service performance.