Speed Torque Converter

Features:

• Fits 2001–2016 GM 6.6L Duramax trucks
• Designed for Allison 1000 transmissions
• Triple disc lockup clutch for firm engagement
• Forged billet steel front cover for strength
• Built for towing, racing, and performance use
• Billet stator resists extended brake stall damage
• Supports increased stall for large turbo setups
• Improves torque multiplication and throttle response
• Race series design for aggressive applications
• Precision engineered and manufactured in-house
• Handles extreme heat and high horsepower loads
• Ideal upgrade for modified or tuned Duramax trucks

Get The Launch Power Your Turbo Duramax Needs

If your truck runs a big turbo or sees action at the strip or pull track, the SunCoast GM-1072-3D Speed Torque Converter is a serious upgrade that delivers where stock converters fall short. Designed for the Allison 1000 transmission in 2001–2016 Duramax-powered Silverado and Sierra HD trucks, this converter helps get you into boost faster with a higher stall RPM. That means better response when brake boosting, stronger launches, and smoother transitions under load. Whether you’re towing, racing, or just demanding more from your build, this converter gives you firmer lockup, more efficient torque transfer, and added confidence in high-stress conditions. With a billet stator and a triple disc lockup clutch, it’s built to handle serious power and repeated abuse without letting go. SunCoast builds everything in-house, so you’re not getting off-the-shelf components, you’re getting a purpose-built converter backed by real-world testing. It’s the kind of upgrade you’ll feel every time you put your foot down.

Engineered For Boost Control And Transmission Longevity

The SunCoast GM-1072-3D Torque Converter is purpose-built for high-performance Duramax applications that rely on a higher stall speed to spool larger turbos and deliver more aggressive throttle response. Designed for use with Allison 1000 transmissions from 2001 to 2016, this converter features a forged billet steel cover for maximum durability under extreme pressure and heat. Inside, it’s equipped with a billet stator that resists damage from extended brake stalling, which is critical for trucks using launch strategies like brake boosting. The triple disc lockup clutch provides consistent engagement and reduces slip under load, making it ideal for builds that push higher torque levels on a regular basis. SunCoast’s in-house design and manufacturing process ensures tight tolerances and precise balancing, giving you a converter that holds up in drag racing, sled pulling, or heavy-duty towing scenarios. With improved torque multiplication and stall control, it’s a smart match for trucks running custom turbos, aggressive tuning, or heavy payloads. This converter bridges the gap between daily drivability and serious performance demands.

Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2001–2016 GM 2500HD/3500HD 6.6L Duramax trucks
• Designed for use with Allison 1000 transmissions
• Triple disc lockup clutch for improved engagement
• Higher stall RPM supports larger turbo setups
• Ideal for drag racing, sled pulling, or heavy towing
• Billet stator resists damage from long brake stalls
• Race series converter offers faster spool-up under load
• Recommended for high horsepower or modified builds
• Not intended for stock or low-power applications
• Manufactured in-house by SunCoast for quality control