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Dorman 926-408 Torque Converter Solenoid Review

📅 March 19, 2026 👤 Gideon Cross ⏱ 4 min read 💬 0 comments
dorman torque converter solenoid review

The Dorman 926-408 torque converter solenoid is presented as a cost-effective fix for Subaru lock-up issues, offering measurable benefits: restores lock-up function, can reduce fuel consumption by a few mpg, and fits several 2012–2020 models with a 3-pin connector and 12V operation. Installation requires basic hand tools, correct torque on mounting bolts (typically 8–10 ft·lb), and attention to valve body mating surfaces. What do users report next?

Key Takeaways

  • Compatible with many Subaru models (Crosstrek, Forester, Impreza, Legacy, Outback, WRX) — confirm exact year/trim before buying.
  • Matches OEM cross-reference numbers (e.g., 31706AA140–142, 31825AA050–052) for fitment confidence.
  • Users report 4.4/5 average rating, often resolving P2763 and restoring proper torque converter lock-up.
  • Proper installation crucial: clean valve body ports, hand-thread bolts, follow OEM torque, and verify connector resistance.
  • Warranty and returns typically available; confirm manufacturer warranty and use a scan tool to verify fault clearance.

Product Overview and Key Specs

When replacing a faulty torque converter lock-up solenoid, the Dorman 926-408 offers a direct, cost-saving alternative to swapping the entire valve body assembly.

It weighs 2.4 ounces, measures 2.87 x 2.28 x 2.28 inches, and matches OEM part numbers like 31706AA140.

Who benefits? Owners seeking liberation from high repair bills.

What to evaluate: fitment confirmation, garage tool use, and warranty options.

Installation tips: follow torque specs, clean connectors, test electrical continuity.

Troubleshooting issues: scan for P2763, inspect harness, verify fluid condition.

Bullet points:

  • manufacturer Dorman Products;
  • model 926-408;
  • precise OE fit.

Compatibility With Subaru Models

After covering fit, specs, and installation basics, attention shifts to which Subaru models the Dorman 926-408 actually fits.

The part lists compatibility with Crosstrek (2016–2019), Forester (2014–2020), Impreza (2012–2019), Legacy (2013–2019), Outback (2013–2019), WRX (2015–2020).

What should the reader check? Use a garage tool to confirm make, model, trim, and OEM cross-reference numbers: 31706AA140, 31706AA141, 31706AA142, 31825AA050–052.

Practical note: item weighs 2.4 oz, dimensions 2.87 x 2.28 x 2.28 in.

Assess solenoid function compatibility before purchase; match codes and fitment precisely.

Installation and Performance Expectations

Because proper installation directly affects both mechanical function and diagnostic outcomes, this section explains what to expect when fitting the Dorman 926-408 torque converter lock‑up solenoid and how to judge its performance.

Installers should follow OEM torque values, verify 2.87 x 2.28 x 2.28-inch clearance, and use a scan tool to confirm code P2763 resolution. Expect measurable performance improvements: firmer lock‑up, reduced slip, improved fuel economy.

Installation tips include:

  1. Clean valve body ports before seating the solenoid.
  2. Hand‑thread bolts, then torque to spec.
  3. Verify electrical connector resistance.
  4. Road‑test 5–10 miles, monitor shift behavior and RPM lock‑up.

Real-World User Ratings and Feedback

Practical user feedback tends to echo the installation notes: many owners report the Dorman 926-408 restores proper lock‑up behavior and clears P2763 when fitted correctly, while a minority still see lingering faults due to fitment or installation issues.

Reviewers give a 4.4/5 average; 131 ratings cite quick fixes, measured torque consistency, and fit accuracy: 2.87 x 2.28 x 2.28 inches, 2.4 oz.

What is the user experience? Mostly positive, some require re-seat or harness checks.

Any installation tips? Verify model fit, torque specs, and connector seating, use a scan tool to confirm lock‑up and fault clear.

Warranty, Returns, and Value Assessment

While warranty and return options vary by seller, the Dorman 926-408 typically comes with a manufacturer-backed warranty and is eligible for standard marketplace returns, offering practical protection for buyers replacing a torque converter lock‑up solenoid.

The reviewer notes warranty details can be confirmed via customer service; Amazon adds a 30-day return process.

Value assessment balances cost savings, 2.4 oz weight, 2.87 x 2.28 x 2.28 in dimensions, and OE-match fit.

Practical questions: Will it clear P2763? Often yes, when installed correctly.

Considerations, fit verification: use vehicle lookup, measure clearance, inspect O-rings.

  1. Coverage length
  2. Claim steps
  3. Restocking rules
  4. Final-value judgment

Frequently Asked Questions

Will This Solenoid Fit Non-Subaru Vehicles With Similar Part Numbers?

No — it won’t simply fit non-Subaru vehicles. He notes compatibility issues: Vehicle applications are specific, and liberated DIYers must verify OEM numbers, dimensions, and electrical matches before adapting the solenoid to other models.

Does It Require Programming or ECM Relearn After Installation?

No programming is typically required; the solenoid mostly drops in. Like releasing a cage, follow the installation process, then use basic troubleshooting tips (clearing codes, test drive, ECU relearn if symptoms persist) for liberated confidence.

Are Any Special Tools Needed Beyond Standard Hand Tools?

No—only standard hand tools are typically required; the installation process is straightforward and does not demand specialty gear. The liberated installer should still follow torque specifications and basic precautions to guarantee proper sealing and secure electrical connections.

Is the Electrical Connector Wiring Identical to OE Harnesses?

Yes; the connector compatibility matches OE harnesses, allowing direct swap. Observers note wiring durability meets expectations, empowering installers to reclaim control over repairs without proprietary barriers or unnecessary replacements, fostering confident, liberated maintenance.

Can This Solenoid Be Used With Rebuilt or Aftermarket Transmissions?

Yes — like a key fitting a reclaimed lock, it can suit rebuilt or aftermarket units if mechanical interfaces match. Torque converter compatibility hinges on fit; solenoid performance mirrors OE when installation and specifications align.

Conclusion

In short, the Dorman 926-408 offers a pragmatic fix for Subaru P2763 lock‑up faults: compatible with 2012–2020 models, rated 4.4/5 from 131 users, and restores lock‑up and fuel economy when installed correctly. Installation requires correct torque (manufacturer spec), clean ports, and a transmission fluid check; expect improved shift feel, 1–3 mpg gains, and avoidance of a valve‑body swap. Question: is it a permanent cure? Answer: often effective, but confirm diagnosis first.

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