ATS 309-865-4440 Stage 6 Allison LCT1000 Crate Transmission | 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P PTO 4WD

Features:

• Built for 2017–2019 L5P Duramax applications
• Includes billet input, output, and intermediate shafts
• Equipped with ATS Five Star torque converter
• Comes with deep ATS transmission pan
• Features billet P2 carrier and billet C2 hub
• Modified P1 sun gear for added strength
• Includes ATS Co-Pilot transmission controller
• Engineered for extreme towing and performance
• Supports high horsepower and torque output
• Compatible with PTO-equipped 4WD trucks
• Crate transmission ready for direct install
• $500 shipping surcharge applies at checkout

Make Your Duramax Shift Like A True Powerhouse

When you're putting serious power through your 2017–2019 L5P Duramax, the last thing you want is your transmission being the weak link. The ATS Stage 6 Allison LCT1000 Crate Transmission gives your truck the confidence it needs to tow harder, drive faster, and last longer under pressure. Whether you’re hauling heavy loads across state lines or launching off the line at a weekend event, this package is built to hold up. With a Five Star torque converter and billet internals throughout, it’s made to handle serious torque without breaking a sweat. The included deep transmission pan helps with cooling and capacity, which is a huge bonus when temps start to rise on the job or on the trail. This is more than just a transmission replacement, it’s a complete performance upgrade in one crate. It’s for the guys who want peace of mind knowing their drivetrain is as tough as the rest of their build.

Built With Billet Strength And Intelligent Control

The ATS 309-865-4440 Stage 6 Allison LCT1000 Crate Transmission is purpose-built for high-powered 2017–2019 Duramax L5P trucks with a PTO and 4WD setup. It includes billet input, output, and intermediate shafts to drastically increase strength in critical areas known to fail under high torque loads. The billet P2 carrier and C2 hub are paired with a modified P1 sun gear to improve gear holding capability and durability during aggressive driving or heavy towing. This system also features the ATS Co-Pilot transmission controller, which enhances line pressure and shift control for better clutch engagement and longevity. You also get the ATS Five Star torque converter, engineered to multiply torque and reduce slippage for a more efficient power transfer. The deep pan not only increases fluid capacity but also improves cooling performance, reducing the risk of overheating during long hauls or demanding use. It’s a fully integrated solution designed to optimize transmission performance across daily driving, towing, and competition use. This kit represents ATS’s commitment to serious diesel performance and long-term reliability.

Fits: 2017, 2018, 2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P PTO 4WD

Notes:

• Designed for 2017–2019 6.6L Duramax L5P engines
• Fits GM Silverado and Sierra 2500HD/3500HD 4WD models
• Includes PTO provision for compatible applications
• Transmission ships as a fully assembled crate unit
• Includes ATS Five Star torque converter and deep pan
• Comes with ATS Co-Pilot transmission controller for better shift control
• Upgraded billet internals improve durability under high load
• Ideal for towing, racing, and high-performance builds
• Requires proper supporting modifications for optimal performance
• $500 shipping surcharge will be added at checkout