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Standard Ignition SC579 Automatic Transmission Input Shaft Speed Sensor
| Brand | Standard Ignition SC579 |
|---|---|
| Connector Gender | Male |
| Connector Shape | Rectangular |
| Connector Type | Plug In |
| Mounting Location | On Transimission |
| Mounting Type | Bolt Mount |
| Terminal Gender | Female |
| Terminal Type | Blade |
| Fits | Kia · 20 vehicles |
Plug-in connector. Simplifies installation with a single rectangular connector.
Bolt-mount design. Secures with two mounting holes for a straightforward fit.
Wiring harness included. Comes ready for a cleaner sensor connection.
Cross-references Delphi SS12405, EXEDY OEM SC579 and 2VSS0207 for the same application. See all 8.
Automatic Transmission Input Shaft Speed Sensor SC579
Standard Ignition SC579 is an automatic transmission input shaft speed sensor built for accurate transmission speed signal monitoring. It uses a bolt-mount design with a rectangular plug-in connector and included wiring harness for a direct-fit service replacement on select Hyundai and Kia applications.
Key Features
- Automatic transmission input shaft speed sensor for transmission speed signal input
- Bolt-mount attachment with 2 mounting holes
- Rectangular male connector with 1 connector and 4 female blade terminals
- 1-wire design with wiring harness included
- Black and grey housing finish
- Direct interchange reference: Delphi SS12405
- Cross-reference part number: EXEDY OEM SC579
Detailed Description
The Standard Ignition SC579 transmission input shaft speed sensor is used to monitor input shaft speed inside the automatic transmission so the control system can track rotational changes accurately. This part number, SC579, is listed for 2010-2012 Kia Forte, 2010-2013 Kia Forte Koup, 2011-2016 Kia Optima, and 2018-2019 Hyundai Sonata. For shoppers searching for a Hyundai Sonata transmission input shaft speed sensor or a Kia Optima input shaft speed sensor, SC579 matches the listed OE-style application and connector layout.
Its bolt-mount construction, rectangular plug-in connector, and included wiring harness support a clean replacement on the specified vehicles. The sensor is identified with a male connector, female blade terminals, and a 2-hole mounting pattern for proper alignment at the transmission case.
Common Problems This Part Addresses
- Transmission speed signal loss or erratic input shaft speed readings
- Illumination of transmission-related warning lights or fault codes
- Harsh, delayed, or inconsistent shifting caused by incorrect speed data
- Driveability concerns tied to inaccurate transmission control inputs
- Failure of the original sensor connector or terminal interface
Installation Notes and Tips
Verify the connector shape, terminal style, and mounting pattern before installation. Clean the mounting surface and inspect the transmission connector for corrosion or damaged terminals before plugging in the harness. Confirm vehicle fitment by year, make, and model: Fits 2010-2012 Kia Forte, Fits 2010-2013 Kia Forte Koup, Fits 2011-2016 Kia Optima, and Fits 2018-2019 Hyundai Sonata.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for electrical and sensor replacement parts. SC579 is built to match the listed application details and interchange references for service replacement use.
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Hyundai | Sonata | — | 2.4L | L4 | N/A | — |
| 2018 | Hyundai | Sonata | — | 2.4L | L4 | N/A | — |
| 2016 | Kia | Optima | — | 2.4L | L4 | N/A | — |
| 2015 | Kia | Optima | Automatic | 2.4L | L4 | N/A | — |
| 2015 | Kia | Optima | — | 2.4L | L4 | N/A | — |
| 2014 | Kia | Optima | Automatic | 2.4L | L4 | N/A | — |
| 2014 | Kia | Optima | — | 2.4L | L4 | N/A | — |
| 2013 | Kia | Forte Koup | Automatic | — | — | N/A | — |
| 2013 | Kia | Optima | Automatic | 2.4L | L4 | N/A | — |
| 2013 | Kia | Optima | — | 2.4L | L4 | N/A | — |
| 2012 | Kia | Forte | Automatic | — | — | N/A | — |
| 2012 | Kia | Forte Koup | Automatic | — | — | N/A | — |
| 2012 | Kia | Optima | Automatic | 2.4L | L4 | N/A | — |
| 2012 | Kia | Optima | — | 2.4L | L4 | N/A | — |
| 2011 | Kia | Forte | Automatic | — | — | N/A | — |
| 2011 | Kia | Forte Koup | Automatic | — | — | N/A | — |
| 2011 | Kia | Optima | Automatic | 2.4L | L4 | N/A | — |
| 2011 | Kia | Optima | — | 2.4L | L4 | N/A | — |
| 2010 | Kia | Forte | Automatic | — | — | N/A | — |
| 2010 | Kia | Forte Koup | Automatic | — | — | N/A | — |
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