Standard Ignition SC209 Automatic Transmission Output Shaft Speed Sensor

Automatic Transmission Speed Sensor

Standard Ignition SC209 is an automatic transmission output shaft speed sensor built for direct replacement service on select Ford, Lincoln, and Mercury applications. It uses a rectangular female plug-in connector with a trans-mount location and a 2-blade male terminal layout for a straightforward OE-style connection.

Compatible with 1997-2001 Ford Explorer, 2001 Ford Explorer Sport Trac, 1998-2001 Mercury Mountaineer, and 2000-2005 Lincoln LS applications, this sensor supports accurate transmission speed signal input for drivability and shifting performance. The SC209 part number is also a useful reference when cross-checking replacement options for these vehicles.

Key Features

• Automatic transmission output shaft speed sensor for transmission-mounted applications
• Rectangular female connector with plug-in design
• 2-blade male terminal configuration
• Built for select Ford Explorer, Ford Explorer Sport Trac, Mercury Mountaineer, and Lincoln LS fitments
• Standard Ignition SC209 replacement part number for catalog and service lookup

Detailed Description

Standard Ignition SC209 is engineered as a transmission output shaft speed sensor for vehicles that rely on a precise speed signal from the transmission assembly. The sensor mounts on the transmission and uses a single rectangular connector interface, making it a practical OE-style replacement for service work on the listed Ford, Lincoln, and Mercury models. If you are replacing a faulty transmission speed sensor on a 1997-2001 Ford Explorer or 2000-2005 Lincoln LS, SC209 provides the correct connector and terminal style for the application.

This part cross-references Delphi SS11430 for the same application.

Common Problems This Part Can Address

• Erratic or incorrect transmission speed signal readings
• Harsh, delayed, or inconsistent shifting behavior
• Transmission warning lights related to speed sensor faults
• Intermittent drivability issues caused by a failing output shaft speed sensor
• Connector or terminal mismatch during sensor replacement

Installation Notes and Tips

Confirm the transmission-mounted sensor location before installation and compare the connector shape, terminal count, and terminal style to the original part. Inspect the harness connector for corrosion, bent terminals, or damaged locking tabs before plugging in the new sensor. Clear any stored transmission-related fault codes after installation and verify proper operation during a road test.

Quality Assurance

Standard Ignition states that it maintains control of the manufacturing process from component sourcing through finished product, with quality control carried through production for consistent service replacement performance. The brand also emphasizes broad sensor coverage for domestic and import applications and long service life in its sensor line.