Keep automatic shifts responsive and transmission fluid pressure precisely routed with the Standard Ignition Automatic Transmission Control Solenoid TCS203. It installs as a direct-fit replacement for the 2009-2014 Hyundai Sonata [All] and the 2014-2015 Kia Cadenza [All].
This solenoid takes an electrical signal and moves a pintle that blocks or vents fluid pressure inside the automatic transmission, helping direct the hydraulic control that governs gear shifting. If a failed transmission control solenoid is the cause of harsh, delayed, or erratic shifting, this part replaces it.
- 100% copper winding: supports positive valve actuation on command.
- Precision-ground pintle: moves freely to block or vent fluid pressure.
- Matched to OE: resistance and inductance matched to OE for proper fit, form and function.
- Stainless steel filter screen: helps keep contamination away from the valve components.
Constructed from metal and plastic, it includes one solenoid and a 5.75 in (146 mm) wiring harness with a single rectangular female connector and two male blade terminals that push on. Gaskets, mounting hardware, and mounting brackets are not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Korea, Republic of.
Interchange: Manufacturer part number TCS203.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this transmission control solenoid do?
It uses an electrical signal to move a pintle that blocks or vents fluid pressure inside the automatic transmission, helping control the hydraulic circuits that manage shifting.
Which vehicles does the TCS203 fit?
It is a direct-fit replacement for the 2009-2014 Hyundai Sonata [All] and the 2014-2015 Kia Cadenza [All]. Check the Buyer's Guide tab to confirm your vehicle.
Does it come with a wiring harness?
Yes. It ships with one solenoid and a 5.75 in (146 mm) wiring harness featuring a single rectangular female connector and two male blade push-on terminals.
Are gaskets, hardware, or brackets included?
No. Gaskets, mounting hardware, and mounting brackets are not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.
What are signs this solenoid may need replacing?
Harsh, delayed, or erratic shifting can be a sign. These symptoms have other possible causes, so diagnose the transmission before replacing this part.
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