SKU: ATS309-926-2116

618 Stage 2 Transmission Package

Ships From Manufacturer in 15-20 Days
Confirmed fitment below
YEARS
1990-1993
MAKE / MODEL
Dodge RAM/RAM /
SERIES
2500/3500
ENGINE
5.9L Cummins 12V
Price
$5,339.99
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PRODUCT DETAIL

Key Features & Description

Features:

  • Built ATS 618 automatic transmission included
  • Comes with speedometer adapter for proper function
  • Includes ATS billet torque converter for durability
  • Features ATS extra deep transmission pan
  • Designed for 1990–1993 5.9L Cummins 2WD trucks
  • Handles increased horsepower and torque loads
  • Improves towing capability and drivability
  • Enhances transmission cooling and fluid capacity
  • Engineered for heavy-duty and performance use
  • Precision-built for reliability and long service life
  • Ideal for stock or modified Cummins trucks
  • Complete package for transmission upgrade needs

Build Your Dodge Right With Power You Can Trust

If you want your early 90s Cummins truck to drive like it was built for serious work and real-world power, the ATS 618 Stage 2 Transmission Package is the upgrade you have been waiting for. This kit is not just a replacement, it is a complete performance solution built for people who use their trucks the way they were meant to be used. Whether you are hauling, towing, or just want crisp, confident shifts for daily driving, this transmission is designed to handle it all. With a built ATS 618 automatic transmission, a billet torque converter, and an extra deep pan included, you are getting serious strength and cooling improvements right out of the box. It even comes with a speedometer adapter to keep everything working like it should on your 1990–1993 2WD Dodge Ram. From highway trips to heavy loads at the jobsite, this setup gives you the confidence to push your truck without worrying about your transmission giving out. ATS brings race-proven technology to the table, and it is built tough enough for real-world diesel drivers.

Engineered For Strength Cooling And Long Term Performance

The ATS 618 Stage 2 Transmission Package is precision built to handle the power and torque demands of the 1990–1993 5.9L Cummins-powered Dodge Ram 2500 and 3500 2WD models. At the heart of the package is the ATS-built 618 automatic transmission, enhanced to provide greater durability and smoother shifting under load. This transmission is paired with a heavy-duty ATS billet torque converter that ensures maximum power transfer and reduced heat buildup during heavy towing or performance driving. The included ATS extra deep transmission pan increases fluid capacity, helping to lower operating temperatures and extend the life of the transmission fluid and internal components. The speedometer adapter is included to ensure full compatibility with the older model drivetrain systems. Designed for both stock and modified trucks, the entire system is a direct bolt-in replacement built to withstand heavy use without the common failures seen in factory units. With ATS craftsmanship behind every piece, this package offers a serious performance and reliability upgrade that seasoned Cummins owners will appreciate.

Fits: 1990, 1991, 1992, 1993 RAM 2500/3500 5.9L Cummins 2WD with Speedometer Adapter

Notes:

  • Designed for 1990–1993 Dodge RAM 2500/3500 2WD models
  • Built specifically for 5.9L 12V Cummins diesel engines
  • Package includes transmission, billet torque converter, and deep pan
  • Comes with speedometer adapter for proper operation
  • Transmission built to handle higher horsepower and towing loads
  • Extra deep pan increases transmission fluid capacity
  • Improved cooling helps extend transmission life
  • Ideal upgrade for stock or performance-modified trucks
  • Direct bolt-in installation for 2WD applications only
  • Not compatible with 4WD RAM trucks
  • Professional installation highly recommended for best results
  • Verify engine and model year compatibility before ordering

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
1990-1993
Dodge RAM/RAM
2500/3500
5.9L Cummins 12V

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