When the torque converter lock-up solenoid fails, drivers may notice shudder, slipping, or harsher shifting. The best options below are direct replacements designed to restore lock-up function without replacing the entire valve body. These selections are best for DIYers and professional mechanics seeking cost-effective, OEM-like performance for Subaru models with TR580/TR690 CVTs and similar transmissions.
Buyer overview: The top picks below focus on Subaru legacy, Outback, Impreza, and Forester models using TR580/TR690 CVTs, plus some universal options that fit similar OE specifications. The following table summarizes the five featured products for quick comparison.
| Product | Best For | Notes |
|---|---|---|
| Dorman 926-408 Torque Converter Lock-Up Solenoid | Subaru owners seeking OEM-fit replacement | OE-spec solenoid; possible code P2763 relief |
| FUSCH Torque Converter Clutch Lock-Up Solenoid | Multiple Subaru models (2010–2017) | Multiple compatible part numbers listed |
| 926-408 Torque Converter Lock-Up Solenoid for Subaru CVT TR580 TR690 (Wansni) | Budget-friendly OEM-replacement | Direct OEM replacement; supports P2763 fixes |
| 926-378 Transmission Torque Converter Clutch Solenoid (Dorman) | General CVT or TCC solenoid replacement | Direct replacement; durable construction |
| labwork CVT TR580 TR690 Lock-Up Solenoid | Subaru Legacy/Outback/Impreza (2010–2017) | User-friendly installation |
Dorman 926-408 Torque Converter Lock-Up Solenoid
The Dorman 926-408 is designed as an exact fit replacement for select Subaru models. It aims to restore lock-up function while avoiding the cost of a full valve body replacement. This solenoid is best for owners experiencing a failing lock-up or trouble code P2763 who prefer a targeted repair rather than full transmission disassembly. Its OE-style design supports straightforward installation for DIYers and professional techs alike.
Who it’s best for: Subaru owners needing a precise, cost-conscious replacement that lines up with factory specifications. Why selected: it matches the original solenoid’s function and fit, with potential to clear related CELs once properly installed.
Caution: Verify vehicle compatibility before purchase; incorrect fitment may require alternative part numbers. Some vehicles may still require additional solenoids if multiple issues are present.
FUSCH Torque Converter Clutch Lock-Up Solenoid
FUSCH presents a lock-up solenoid designed for Subaru models from 2010 to 2017, listing multiple compatible part numbers. Its stated purpose is to replace the TCC solenoid when codes such as P2764, P2763, or P2762 appear, with cross-compatibility to various listed part numbers. This makes it a strong option for those who want a direct replacement aligned with OEM-equivalent functionality across several Subaru transmissions.
Who it’s best for: Subaru owners troubleshooting recurring lock-up faults with common P-t codes. Why selected: broad part-number compatibility can simplify finding a match for several model years.
Caution: The listing emphasizes compatibility with several part numbers; confirm your exact VIN and transmission code before ordering to avoid mismatches.
926-408 Torque Converter Lock-Up Solenoid (Wansni)
This Wansni offering highlights a direct OEM replacement approach for Subaru CVT TR580/TR690, supporting models like Legacy, Outback, Impreza, Forester, and Crosstrek within specified years. It aims to fix common lock-up issues and codes such as P2763, restoring smoother shifts and reduced slippage. It presents as a budget-friendly option with direct fitment for specified part numbers, making it a good balance of price and compatibility.
Who it’s best for: Budget-conscious Subaru owners who want a straightforward replacement that aligns with OEM equivalents. Why selected: explicit OEM-number alignment helps ensure compatibility with TR580/TR690 configurations.
Limitation: As with other aftermarket parts, verify that your vehicle’s exact transmission code matches the listed compatibility to ensure a proper fit.
Dorman 926-378 Transmission Torque Converter Clutch Solenoid
Dorman’s 926-378 offers a direct replacement for the torque converter clutch solenoid, engineered to match factory fit and function for specified years and models. It is positioned as a reliable, durable option for replacing a worn solenoid that has caused shifting irregularities or torque converter issues. The solenoid’s construction emphasizes longevity and dependable operation, making it suitable for technicians replacing the TCC solenoid due to wear or fatigue.
Who it’s best for: Vehicle owners seeking a dependable, easy-to-install replacement that preserves original performance. Why selected: it mirrors factory specs and can reduce downtime by offering a straightforward swap.
Caution: Make sure the solenoid you order aligns with your vehicle’s transmission family; mis-match can lead to suboptimal performance or fit issues.
labwork CVT TR580 TR690 Lock-Up Solenoid
The labwork solenoid targets Subaru Legacy Outback and similar models (2010–2017) with TR580/TR690 configurations. It emphasizes user-friendly installation and durability. The listing notes compatibility with several OEM numbers, which supports a direct replacement approach for the affected CVT lock-up system. This option suits technicians who want a straightforward install without altering the valve body.
Who it’s best for: DIYers and pros replacing a failing lock-up solenoid in Subaru CVTs within the TR580/TR690 family. Why selected: easy installation plus broad compatibility with common Subaru transmission codes.
Caution: Warranty or return terms vary by seller; ensure the correct part numbers match your vehicle’s specification before purchase.
Transmission Torque Converter Clutch Solenoid 12-13 Ohm (LDCRE)
LDCRE’s lock-up solenoid is designed for Subaru TR580/TR690 TR transmissions, with a specified 12-13 Ω resistance for proper operation within the lock-up circuit. It emphasizes compatibility with multiple OEM part numbers, including 31825AA050/051/052 and 31706AA030/031/032/033. It positions itself as a reliable substitute that helps resolve codes associated with lock-up failures and supports smoother, more consistent gear engagement.
Who it’s best for: Technicians seeking a direct replacement with an explicit resistance value to guide installation. Why selected: the resistance spec supports quick verification during installation, streamlining fitment checks.
Caution: The listing notes a 12-13 Ω range; measure resistance to confirm exact match before installation.
TADYAO 31825AA050 Lock-Up Solenoid
TADYAO offers a lock-up solenoid listed for Subaru Legacy and Outback models with CVT TR580/TR690 transmissions. The product emphasizes accurate hydraulic control, heat and wear resistance, and long service life. This option suits buyers looking for a robust component intended to sustain performance under varied driving conditions, while maintaining reliable lock-up function.
Who it’s best for: Subaru owners seeking improved durability and stable shifting, especially in hotter climates or heavy-use scenarios. Why selected: emphasis on hydraulic control and resilience supports consistent transmission behavior.
Caution: Check exact model and year compatibility to avoid fit issues; some listings may require additional transmission electronics or seals in service.
Buying Guide
Key considerations for selecting a torque converter lock-up solenoid:
- Vehicle compatibility: Confirm your Subaru model, year, and transmission (TR580/TR690) to ensure the solenoid matches OE specifications.
- Resistance and electrical specs: Some solenoids specify a resistance range (e.g., 12-13 Ω). Use a multimeter to verify before installation when data is provided.
- OEM vs aftermarket: OEM-like replacements reduce the risk of fitment issues, but reputable aftermarket options can save cost. Compare part numbers carefully.
- Code and symptom alignment: If codes like P2762, P2763, or P2764 appear, ensure the chosen solenoid addresses these codes via documentation or compatibility notes.
- Installation ease: Direct replacements that do not require valve-body disassembly are typically preferred for DIY installs. Consider professional help for complex cases.
- Durability and material quality: Look for solenoids with robust construction and heat resistance to support long-term reliability.
FAQ
- What does a torque converter lock-up solenoid do? It controls hydraulic pressure to engage or disengage the torque converter’s lock-up clutch, impacting shifting smoothness and fuel efficiency.
- When should I replace the lock-up solenoid? Replace when you notice transmission shudder, slipping, or codes such as P2763 or P2764, especially if other causes are ruled out.
- Is an OEM replacement always best? OEM replacements typically ensure precise fit and function, but high-quality aftermarket options can offer equivalent performance at lower cost.
- Can I install the solenoid myself? Many solenoids are designed for direct replacement, making DIY installation feasible with basic tools. Some cases may require professional service.
- How do I verify compatibility? Cross-check the part number with your transmission model (TR580/TR690), and confirm year/model compatibility on the product page or with the seller.
- Will replacing the solenoid fix all transmission issues? Replacing the solenoid can fix specific lock-up problems, but other transmission faults may require additional diagnostics or parts.