SKU: ATS309-825-4440

Stage 2 Allison LCT1000 Crate Transmission

Ships From Manufacturer in 15-20 Days
Confirmed fitment below
YEARS
2017-2019
MAKE / MODEL
GM/Chevrolet/GMC / Silverado/Sierra
SERIES
2500HD/3500HD
ENGINE
6.6L Duramax L5P
Price
$6,538.95
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PRODUCT DETAIL

Key Features & Description

Features:

  • Fits 2017-2019 6.6L L5P Duramax 4WD
  • Includes performance-built Allison LCT1000 transmission
  • Comes with ATS Five Star torque converter
  • Includes ATS deep transmission pan
  • Features ATS Co-Pilot transmission controller
  • Designed for trucks with PTO option
  • Improves power handling and reliability
  • Ideal for towing and performance applications
  • Engineered for long-term transmission durability
  • Complete crate transmission package

All the Power with None of the Weak Links

If you’re running a 2017–2019 Duramax-powered Silverado or Sierra 2500HD or 3500HD with 4WD and PTO, the ATS Stage 2 Allison LCT1000 Crate Transmission Package is built to handle the kind of power and workload your stock transmission simply can’t. This isn’t just a rebuilt factory unit—it’s a complete performance package designed to hold up to increased torque, heavy towing, and daily abuse. The package includes ATS’s fully built LCT1000 transmission, a proven Five Star torque converter for improved power transfer, and a deep transmission pan to keep temperatures in check. With this setup, you get smoother shifts, better clutch engagement, and increased reliability, all designed to handle the demands of tuned or hard-working trucks.

Total Control with ATS Co-Pilot Technology

One of the standout features of this package is the inclusion of the ATS Co-Pilot Transmission Controller. This advanced control module allows your transmission to lock up the torque converter at the right time, manage shift points more effectively, and protect internal components from unnecessary wear. It works alongside the upgraded hardware to give you better drivability and long-term durability, whether you’re towing up steep grades or driving unloaded on the highway. This package is a direct-fit solution for PTO-equipped trucks and is ideal for anyone looking to replace or upgrade their stock transmission with something that’s built to perform under real-world conditions. Just be sure to factor in the $500 freight charge that applies at checkout.

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

Includes:

  • ATS 4WD w/ PTO 2017-2019 Allison LCT1000 Performance Transmission
  • ATS Allison LCT1000 Five Star Torque Converter (302-950-4440)
  • ATS Allison LCT1000 Deep Transmission Pan (301-900-4248)
  • ATS Co-Pilot Transmission Controller (601-924-4440)

Note: $500 Shipping surcharge will be added at checkout

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
2017-2019
GM/Chevrolet/GMC
Silverado/Sierra
2500HD/3500HD
6.6L Duramax L5P

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