StreetMonster Chevy 4L85E Transmission and Torque Converter

Power through the toughest jobs with the StreetMonster 4L85E transmission, the ultimate 4-speed automatic built for heavy-duty trucks, SUVs, and high-performance beasts. Renowned for its legendary durability and high torque capacity, the 4L85E is engineered to dominate in towing, hauling, and high-powered applications. With a rugged design and reinforced internals, this transmission is your go-to for reliable, long-lasting performance under the most demanding conditions. Built to handle up to 450 horsepower and 440 lb-ft of torque, the 4L85E doesn’t just survive under heavy loads—it thrives. Featuring smooth, electronically controlled shifting and a lockup torque converter, it delivers efficient power and crisp performance while maximizing fuel economy. Whether you’re hauling a heavy trailer, crushing off-road terrain, or taking on high-performance challenges, the Monster 4L85E delivers unmatched strength and reliability.