J.W. Performance® - Street Lethal™ Torque Converter

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Product Details

Street Lethal™ Torque Converter (50442) by J.W. Performance®. Diameter: 11". Stall Speed: 2400-2700. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate satisfaction.

J.W. Performance


  • Designed to deliver trouble-free, consistent performance
  • Right for your vehicle and lifestyle
  • Made from high-quality materials for ultimate durability
  • Manufactured to meet or exceed strict quality requirements

This J.W. Performance product is professionally and meticulously designed to provide superior durability you are looking for. The company does not accept compromises when it is going about quality, so you can be completely confident that this product is second to none. It is manufactured from first-rate materials to ensure outstanding reliability. This J.W. Performance product provides efficient and worry-free service for many years ahead which makes it the perfect option for your ultimate satisfaction.

J.W. Performance Transmission, Inc. is a leading manufacturer of high performance automatic transmissions and components for drag and off road racers, street and strip enthusiasts, and more. Headquartered in Rockledge, Florida, J.W. Performance® manufactures thousands of quality transmissions and related parts ranging from flexplates to bellhousings. The company pioneered over 250 products since 1976. Many of its innovative solutions remain the industry standard and are widely used by professional racers in the United States and abroad.

Part Number:


J.W. Performance provides a limited warranty against defective parts and workmanship. The following is a list of the specific length of warranty of time for each part:

1 Year: 7″-10″ Ultra-Comp Converter, Gear Set, Complete Planetary

90 Day: Ultra-Bell, Ultra-Case, Ultra-Pump, Valve Body, Tailhousing, Input Shaft, Solenoid, 11″ and 12″ Converter, 10″ Sportsman Converter, The Wheel, Deep Pan, Sprag, Stator, New Transmission, Refreshed Transmission.

30 Day: Shifter

J.W. Performance assumes no liability in the use of any product. If an item is suspected of being defective, it must be returned within 10 days for inspection after J.W. Performance has given authorization. After inspection of the part, J.W. Performance Transmissions will advise what/if an allowance is due. Any disassembly of the product done by anyone other than J.W. Performance will void any and all warranties/guarantees. It is recommended that you keep a copy of your sales receipt. J.W. Performance Express Limited Warranty does not cover any misuse, abuse, unauthorized repairs, unauthorized modifications, failure due to improper installation, or failure due to improper maintenance. Freight handling, removal, and reinstallation charges for replacement parts is not covered. Normal wear is not covered.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

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Low Prices Price match guarantee
Guaranteed Fitment Always the correct part
In-House Experts We know our products
Easy Returns Quick & Hassle Free

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