Drivetrain› Automatic Transmissions and Components

ATS Diesel

Co-Pilot Transmission Controller

$819.99

SKU: 601-900-9272

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Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The ATS Diesel Co-Pilot Transmission Controller is designed to improve the reliability and durability of 545-RFE, 65-RFE, and 66-RFE transmissions. It commands line pressure and internal clutch timing to increase the holding force of clutch packs and the converter clutch. This controller is ideal for trucks with oversized tires or modified engines that require adjusted line pressure for higher power levels.
Show original supplier description
The ATS 601-900-9272 Co-Pilot Transmission Controller is engineered to optimize the performance and reliability of your 2003-2018 Dodge or Ram truck equipped with a 5.7L HEMI engine and the 545RFE, 65RFE, or 66RFE transmission. This upgrade is particularly beneficial for trucks used for towing, daily driving, or performance applications where the stock transmission control strategy may fall short under load, leading to issues like clutch slippage. The Co-Pilot actively commands transmission line pressure and internal clutch timing to significantly enhance clutch pack holding force and improve converter clutch apply. By taking control when increased pressure is necessary, it minimizes slippage and delivers a more confident and responsive transmission performance. The system includes an in-cab controller for monitoring critical transmission and engine inputs, along with a plug-and-play wiring harness for a streamlined installation process. This controller is an excellent upgrade for towing scenarios, as it directly improves line pressure control and converter clutch holding capabilities under heavier load conditions. ATS Diesel backs this product with a 5-Year / 500,000 Mile Limited Warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandATS Diesel
Part Number601-900-9272
CategoryIgnitions and Electrical
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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