The best automotive replacement torque converter lock-up solenoids you can buy

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AI-generated summary · updated August 7, 2026 · verify details before purchase.

1. 

   1 Best overall FUSCH

   Mossy Electronics TCS-3 Torque Converter Lockup Solenoid

   ★★★★★4.8/5 $53.98

   High durability, OEM spec, accurate timing for optimal shift performance.

   • Durable construction
   • Precise timing
   • Wide temperature range

   • Heavier weight

   View on Amazon manufacturer site
2. 

   2 Best budget pick FUSCH

   B&G 500A Torque Converter Lockup Solenoid

   ★★★★★4.6/5 $53.98

   Affordable, reliable solenoid compatible with many vehicles.

   • Affordable
   • Reliable
   • Wide compatibility

   • Limited lifespan

   View on Amazon
3. 3

   Mossy Electronics TCS 2.5A

   ★★★★★4.7/5 $55-$65

   Balanced current, low noise, good thermal performance.

   • Balanced current
   • Low noise
   • Good thermal performance

   • Less common

   View on Amazon manufacturer site
4. 4 Best budget pick

   Mossy Electronics TCS 1.5A

   ★★★★☆4.5/5 $40-$50

   Very affordable, easy installation, low current for compact engines.

   • Very affordable
   • Easy to install
   • Low current

   • Lower torque range

   View on Amazon manufacturer site
5. 

   5 Best performance pick FUSCH

   B&G 2000A Torque Converter Lockup Solenoid

   ★★★★☆4.5/5 $53.98

   High current, high torque, fast response for performance vehicles.

   • High current
   • High torque
   • Fast response

   • Higher cost

   View on Amazon
6. 

   6 Best high-torque pick FUSCH

   Mossy Electronics TCS-5 Torque Converter Lockup Solenoid

   ★★★★★4.6/5 $53.98

   Robust high-current solenoid with long lifespan for heavy duty use.

   • High current
   • Robust build
   • Long lifespan

   • Heavier

   View on Amazon manufacturer site
7. 

   7 B&M

   B&G 1200A Torque Converter Lockup Solenoid

   ★★★★★4.6/5 $389.95 Only 1 left

   Balanced, reliable, good for heavy duty applications.

   • Balanced current
   • Reliable
   • Good for heavy duty

   View on Amazon

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