The best torque converter control solenoid is the one that matches your transmission and vehicle’s exact application. GM Genuine Parts valves are options for compatible GM vehicles, while Dorman 926-408 is listed for select Subaru models. The products below include OEM-branded replacements and alternatives, but fitment should be confirmed by year, make, model, transmission, and part number before ordering.
| Product | Best suited for | Key consideration |
|---|---|---|
| GM Genuine Parts 24227792 | Matching GM applications | Verify the original part number |
| Dorman 926-408 | Select Subaru models | Confirm CVT and solenoid fitment |
| Dorman 926-378 | Specified vehicle applications | Exact fitment details are essential |
| GM Genuine Parts 24210864 | Matching GM applications | Not interchangeable by appearance alone |
| Daysyore TR580/TR690 set | Listed Subaru Lineartronic CVTs | Check transmission code and quantity |
GM Genuine Parts 24227792 PWM Valve
This GM Genuine Parts torque converter clutch pulse width modulation valve is designed to help control fluid flow in the transmission control valve body and clutch application pressure. GM identifies it as a recommended replacement for the vehicle’s original factory component.
Best for: Owners whose vehicle’s verified replacement part number is 24227792. Its stated role and GM-branded replacement positioning make it a relevant option when that exact application is confirmed.
Limitation: The listing does not provide a complete vehicle fitment list. Check the vehicle’s service information or original part number rather than assuming it fits every GM transmission.
Dorman 926-408 Subaru Lock-Up Solenoid
Dorman describes this as a torque converter lock-up solenoid for select Subaru models. Its OE FIX design is intended to allow replacement of the solenoid rather than the entire valve body assembly. The product is engineered to match the fit and function of the original solenoid on specified vehicles.
Best for: Subaru owners whose vehicle and transmission are included in the part’s specified application. The listing also says a properly installed replacement can help address check-engine trouble code P2763 when the solenoid is the cause.
Limitation: A trouble code alone does not confirm that the solenoid is faulty. Verify diagnosis and application before replacing a transmission component.
Dorman 926-378 TCC Solenoid
The Dorman 926-378 is described as a direct replacement for the factory torque converter clutch solenoid on specified years, makes, and models. Dorman states that it is intended to replace a failed original part and uses materials selected for durability.
Best for: Buyers who have confirmed that 926-378 matches the original solenoid for their vehicle. The direct-replacement description makes it a practical candidate when the application is verified.
Limitation: The supplied product information does not name the compatible vehicles. Do not order based only on the general “TCC solenoid” description; confirm the exact vehicle and transmission fitment.
GM Genuine Parts 24210864 PWM Valve
This GM Genuine Parts pulse width modulation valve helps control fluid flow within the control valve body and clutch application pressure. It is presented as a GM-recommended replacement for the original factory component.
Best for: A GM vehicle whose confirmed service part number is 24210864. It offers a vehicle-specific option for buyers looking to match the original component rather than selecting a solenoid by appearance.
Limitation: The supplied listing information does not include a vehicle-by-vehicle fitment chart. Confirm that 24210864 is correct for the transmission before purchase, and do not assume it is interchangeable with 24227792.
Daysyore TR580/TR690 Solenoid Set
Daysyore lists this four-piece set for Subaru Lineartronic CVT TR580 and TR690 transmissions. The stated application covers torque converter lock-up and AWD pressure control solenoids. The product information describes the parts as remanufactured and tested OEM/OES units, with high-temperature resistance and stable performance among its listed features.
Best for: Buyers whose repair requires the listed set and whose Subaru transmission is confirmed as TR580 or TR690. It may be more appropriate than a single-solenoid listing when the specified repair calls for multiple pieces.
Limitation: The product title and description should be checked carefully to confirm the set contents and exact transmission application for the vehicle.
Buying Guide: How To Choose A Torque Converter Control Solenoid
How do you confirm the correct part?
Start with the vehicle identification number, model year, engine, and transmission code. Compare the original solenoid’s part number with the replacement listing, and use a reliable parts catalog or service information to verify fitment. Similar-looking solenoids may have different electrical or hydraulic specifications, so appearance alone is not enough.
Should you choose an OEM-branded or aftermarket part?
GM Genuine Parts listings identify themselves as GM-recommended replacements for original components, but the part number still needs to match. Dorman listings describe replacement designs for specified applications. Other aftermarket listings may cover particular transmission families or bundle several solenoids. Choose based on confirmed compatibility and the repair requirement, not brand name alone.
Do you need one solenoid or a set?
A single-solenoid replacement can suit a repair that identifies one failed component. A multi-piece set may be relevant when the repair procedure calls for multiple valves, but verify exactly what is included. Replacing extra parts without diagnosis can add work without addressing the actual cause of a transmission problem.
Is a trouble code enough to diagnose the solenoid?
No. A code can point to a circuit or performance issue, but it does not always prove the solenoid itself has failed. Wiring, connectors, fluid condition, valve-body issues, or other transmission faults may also require inspection. Follow vehicle-specific diagnostic steps before ordering.
Frequently Asked Questions
What does a torque converter control solenoid do?
It controls transmission fluid functions associated with torque converter clutch operation. These products describe controlling fluid flow, clutch pressure, or lock-up operation.
Can I replace a solenoid without replacing the valve body?
Some products, such as Dorman 926-408, are presented as allowing solenoid-only replacement instead of the entire valve body. Whether that repair is appropriate depends on the vehicle and diagnosis.
Are torque converter solenoids universal?
No. Solenoids are application-specific. Match the part to the vehicle, transmission, and original part number.
Can I use a P2763 code to choose Dorman 926-408?
The listing says proper installation can help clear P2763 when the solenoid is responsible. Diagnose the code first and confirm that the part fits the vehicle.
Are GM 24227792 and 24210864 interchangeable?
The provided product details do not establish that they are interchangeable. Check the required part number for the specific vehicle and transmission.