The best torque converter clutch solenoid depends on your vehicle and the exact part number it requires. Dorman 926-378 is a direct-replacement option for specified applications, while GM Genuine Parts 24227792 is a factory-recommended replacement for applicable GM vehicles. Dorman 926-408 is designed for select Subaru models; WVE by NTK 2N1211 offers an OE-specification alternative. Confirm year, make, model, engine, transmission, and OE number before ordering.
| Product | Best suited for | Key distinction |
|---|---|---|
| Dorman 926-378 | Specified vehicle applications | Direct replacement |
| GM Genuine Parts 24227792 | Applicable GM vehicles | GM-recommended replacement |
| Dorman 926-408 | Select Subaru vehicles | Solenoid-only replacement option |
| WVE by NTK 2N1211 | Vehicles matching its application | Designed to meet or exceed OE specifications |
| GM Genuine Parts 24227747 | Applicable GM vehicles | GM OE fit, form, and function |
Dorman 926-378 Torque Converter Clutch Solenoid
Dorman describes this part as a direct replacement designed to match the fit and function of the factory TCC solenoid on specified years, makes, and models. The listed features also cite durable construction and replacement of an original component that failed from wear or fatigue.
Best for: Owners whose vehicle application specifically calls for Dorman 926-378 and who need a factory-part replacement. It was selected for its stated direct-replacement purpose and clear focus on TCC solenoid service.
Limitation: The provided product details do not name compatible vehicles. Verify the part number against your vehicle before purchase.
GM Genuine Parts 24227792 PWM Valve
This GM Genuine Parts pulse-width-modulation valve helps control fluid flow in the transmission control valve body and helps regulate clutch application pressure. GM identifies it as a recommended replacement for the original factory component in applicable vehicles.
Best for: GM vehicle owners who have confirmed that 24227792 is the correct OE replacement number. Its listed role in fluid-flow and clutch-pressure control makes it a relevant option when replacing this specific valve.
Limitation: The provided details do not list supported models or years. Check the vehicle’s service information or confirm fitment using the OE number.
Dorman 926-408 Subaru Lock-Up Solenoid
Dorman 926-408 is described as an OE FIX lock-up solenoid for select Subaru models. Its listed benefit is replacing the solenoid rather than the entire valve-body assembly. When properly installed, it may help clear diagnostic trouble code P2763, according to the product features.
Best for: Subaru owners whose vehicle is confirmed as a specified application and whose repair diagnosis points to this solenoid. The solenoid-only replacement approach is a reason to consider it when the alternative repair would involve the full valve body.
Limitation: It is not a universal part, and the supplied details do not identify the exact Subaru years or models. Confirm fitment and diagnose the code before replacing parts.
WVE by NTK 2N1211 TCC Solenoid
WVE by NTK says this transmission control solenoid manages fluid flow into and through an automatic transmission. The product is designed to meet or exceed OE specifications in form, fit, and function. Its listed symptoms of a possible failed solenoid include intermittent or absent shifting, high engine speed relative to vehicle speed, increased fuel consumption, and a check-engine light.
Best for: Buyers who have verified that 2N1211 matches their vehicle and want an aftermarket component described in relation to OE specifications.
Limitation: Those symptoms can have multiple causes. The product details do not provide application fitment, so check compatibility and diagnose the transmission before ordering.
GM Genuine Parts 24227747 PWM Valve
GM Genuine Parts 24227747 is described as a replacement for an original GM factory component. The listed features emphasize quality, reliability, durability, and manufacture to GM OE specifications for fit, form, and function.
Best for: Owners whose parts lookup or repair documentation specifies OE number 24227747. It is a useful comparison against the 24227792 listing when selecting a GM-branded replacement.
Limitation: Do not assume 24227747 and 24227792 are interchangeable. Confirm the exact number required for the vehicle and transmission.
Buying Guide: How to Choose a TCC Solenoid
How do you confirm the correct part?
Start with the vehicle’s year, make, model, engine, and transmission. Then compare the required OE part number with the listing. Similar names do not guarantee interchangeability; the GM 24227747 and 24227792 products, for example, have different part numbers. Use a reliable parts catalog or vehicle-specific service information when fitment is unclear.
Should you choose an OE or aftermarket part?
A GM Genuine Parts option is described as a factory-component replacement made to GM OE specifications. Dorman and WVE listings describe replacement or OE-specification goals, but application details vary. Choose based on confirmed fitment and the repair requirements rather than brand wording alone.
Does a transmission symptom prove the solenoid has failed?
No. Shifting problems, engine-speed changes, and warning lights may have more than one cause. Read diagnostic codes and follow appropriate troubleshooting steps before replacing a solenoid. Dorman notes that its Subaru solenoid may help clear P2763 when properly installed, but a code alone does not establish that the solenoid is faulty.
What else should you check before ordering?
Confirm whether the part is new or remanufactured, where the listing specifies that detail, and review installation requirements for your transmission. COPACHI’s 24227792 listing, for instance, explicitly describes its unit as remanufactured. Ask a qualified repair professional if you cannot verify the correct component.
Frequently Asked Questions
What does a torque converter clutch solenoid do?
It helps control transmission fluid flow used in torque converter clutch operation. Some designs also regulate clutch application pressure through the valve body.
Can I drive with a faulty TCC solenoid?
Symptoms may include shifting problems or excessive engine speed for vehicle speed, as listed for WVE 2N1211. Have the transmission diagnosed promptly; the product details do not establish that continued driving is safe.
Are all torque converter clutch solenoids interchangeable?
No. Solenoids can differ by vehicle application and part number. Match the replacement to the vehicle and transmission requirements.
Does a check-engine light mean I need a new solenoid?
Not by itself. A warning light can have multiple causes. Read the trouble code and complete diagnosis before choosing a replacement part.