5.9L To 5R110 Conversion Five Star Torque Converter

Features:

• Fits 5.9L Cummins with 5R110 conversion
• 2.4:1 torque multiplication for better response
• Patented Viskus Clutch Drive System
• Billet cover with square flank drive tabs
• Laser-cut clutch plates for precise engagement
• 4340 hardened turbine splines for durability
• Plasma welded for extreme strength
• CNC stator with high-flow oil windows
• Redesigned spring dampener handles more torque
• Fully roller bearing construction for longevity
• 5-year / 500,000-mile warranty included

Built for Big Power and Reliable Shifts

Swapping a 5R110 transmission behind your 1989–2007 5.9L Cummins is a serious upgrade—and to make it work right, you need a torque converter that’s just as capable. The ATS 302-950-5278 Five Star Torque Converter is built specifically for this conversion, delivering the kind of strength, efficiency, and driveability that aggressive builds and heavy-use trucks demand. What sets it apart is its impressive 2.4:1 torque multiplication, more than double what the factory converter offers. That translates to stronger launches, smoother towing, and a quicker, more responsive feel on the road. Whether you're pulling heavy loads or just want your Cummins to move with authority, this converter helps get the job done.

Precision-Engineered for Maximum Efficiency and Longevity

Inside the ATS Five Star, you’ll find a billet cover with square flank drive tabs, laser-cut Viskus clutch plates, and a billet piston with a patented tab design—all engineered to deliver clean, consistent engagement. The CNC-machined stator increases oil flow for better cooling and efficiency, while the fully roller bearing construction and hardened 4340 turbine splines ensure this converter holds up under extreme load. It's fully plasma welded for maximum durability, and ATS backs it with a 5-year / 500,000-mile warranty—because they know it’s built to last. This isn’t just a converter; it’s a key part of building a transmission swap you can count on every time you hit the key.

Fits: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 RAM 2500/3500 5.9L Cummins w/ 5R110 Transmission