Keep shift commands reaching the transmission's hydraulic circuits with the Standard Transmission Control Solenoid TCS312. It fits many vehicles, among them the 2005-2009 Chevrolet Equinox, 2006-2009 Pontiac Torrent and 2003-2004 Saturn Ion. See the "Vehicles it fits" section for the full list and engine details.
This automatic transmission control solenoid is an electrically operated valve. When the vehicle's control module energizes it, its pintle moves to block or vent fluid pressure inside the transmission.
- 100% copper winding: built for positive valve actuation on command.
- Precision-ground pintle: moves freely to block or vent fluid pressure.
- OE-matched electrical values: resistance and inductance are matched to OE for proper fit, form and function.
- Stainless steel filter screen: designed to keep contamination away from the valve components.
Standard is a global manufacturer and maintains quality control throughout its full manufacturing process.
Signs this part may need replacing include harsh, delayed or erratic shifts, a transmission that stays in one gear, or solenoid-related trouble codes. These symptoms can have other causes, so diagnose the fault before replacing parts.
Interchange: TCS235 · TCS855 · 24220807
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Frequently Asked Questions
Which vehicles does the TCS312 fit?
It fits many vehicles, among them the 2005-2009 Chevrolet Equinox, 2006-2009 Pontiac Torrent and 2003-2004 Saturn Ion. See the "Vehicles it fits" section for the full list and engine details.
What does a transmission control solenoid do?
When the vehicle's control module energizes it, its pintle moves to block or vent fluid pressure. This helps direct hydraulic pressure within the automatic transmission.
What signs suggest this solenoid may need replacing?
Harsh, delayed or erratic shifting, staying in one gear, or solenoid-related trouble codes can be signs. Other faults cause these symptoms too, so diagnose the cause before replacing.
Which part numbers does the TCS312 interchange with?
The TCS312 replaces TCS235, TCS855 and 24220807.
Does this solenoid have a filter?
Yes. It has a stainless steel filter screen designed to keep contamination away from the valve components.
