SKU: ATS309-855-4440

Stage 5 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
$8,576.95
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PRODUCT DETAIL

Key Features & Description

Features:

  • Fits 2017-2019 6.6L L5P Duramax 4WD
  • Includes PTO-equipped Allison LCT1000 transmission
  • Comes with ATS Five Star torque converter
  • Includes ATS deep transmission pan
  • Billet input shaft for added strength
  • Billet output and intermediate shafts included
  • ATS Co-Pilot transmission controller for tuning
  • Built for extreme towing and performance use
  • Reinforced internals for high horsepower builds
  • Complete Stage 5 performance transmission package

Built for Power Ready for the Long Haul

If you're pushing serious power with your 2017 to 2019 L5P Duramax and need a transmission that can keep up, the ATS Stage 5 Allison LCT1000 Crate Transmission Package is the upgrade your truck has been waiting for. Designed specifically for 4WD trucks equipped with a PTO, this complete setup takes durability and performance to the next level. Whether you're towing heavy, running larger tires, or turning up the power with tuning and hard parts, this package ensures your drivetrain stays in control. It includes ATS’s refined version of the Allison LCT1000 transmission along with the proven Five Star torque converter for maximum holding power and smooth, efficient torque transfer.

Premium Components Engineered for Real-World Demands

Inside the transmission, you’ll find billet input, output, and intermediate shafts that are built to handle the added stress of high horsepower and extreme duty cycles. The deep transmission pan helps manage heat, while the included ATS Co-Pilot Transmission Controller gives you better control over shift strategies and line pressure under load. This is not just a rebuilt transmission—it’s a fully engineered solution for truck owners who demand both strength and drivability. Whether you’re working hard during the week or playing hard on the weekend, this crate transmission package brings unmatched confidence and reliability to your build.

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

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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