Delphi Vehicle Speed Sensor P/N:SS12520
Delphi SS11421 vehicle speed sensor for the 1999-2014 Ford Mustang and other vehicles measures how fast the vehicle is moving. It is calibrated and tested to match the OE part.
A speedometer that jumps or drops to zero, cruise control that stops working or a warning light can point to a faulty speed sensor, but a damaged wire or connector can produce those too. Before replacing the sensor, look over its connector and wiring with the engine off for oil, corrosion or damage.
The 1999-2014 Ford Mustang, the 1999-2003 Ford F-150 V6-4.2L, V8-4.6L or V8-5.4L and the 1999 Ford F-250 V8-4.6L or V8-5.4L all take this sensor, and so do other vehicles. This listing is one sensor, and the vehicles above need only one. If your car is not named here, look up its year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One vehicle speed sensor.
Interchange: XR3Z 7H103-AB
SN7140 · SN7405 · VSS740 · SC207 · SC468 · 5S7350
This part cross-references / interchanges with the following part numbers:
Is this Mustang speed sensor made for the 1999-2014 Ford Mustang?
Yes. Delphi SS11421 fits the 1999-2014 Ford Mustang. The "Vehicles it fits" section shows the engine listed for your model year.
Does the Delphi SS11421 come with anything besides the sensor?
No. The package contents list one vehicle speed sensor and nothing else.
Is the output of this vehicle speed sensor digital?
Yes. Delphi SS11421 has a digital output, designed for maximum signal-to-noise ratio.
Can a failing vehicle speed sensor make my speedometer jump around?
It can. An erratic speedometer or cruise control that drops out can point to the sensor, and a shop can test it to confirm.
Does Delphi SS11421 replace part number XR3Z 7H103-AB?
Yes. XR3Z 7H103-AB is one of the numbers this sensor replaces, along with SN7140, SN7405 and VSS740.
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