ATS 309-914-2272 48RE STAGE 1 PACKAGE 2003 EARLY 2004 DODGE 4WD DIESEL

Product Description

Built 48RE Performance and Reliability for 2003-Early 2004 5.9L Cummins 4WD Trucks

The ATS 309-914-2272 48RE Stage 1 Package is engineered for 2003 to early 2004 Dodge 4WD diesel trucks equipped with the 5.9L Cummins and 48RE automatic transmission. ATS designed this package to address the known weak points of the factory 48RE by improving clutch capacity, band performance, valve body function, and overall transmission durability for towing, street use, and moderate performance applications.

ATS notes that the 48RE is one of the weakest points in the Dodge Cummins drivetrain, so this package upgrades critical internal areas to improve holding power, shift quality, and long-term reliability. Stage 1 packages include an ATS-built 48RE automatic transmission, an ATS 5 Star Viskus Clutch Drive Torque Converter, and an ATS Extra Deep Transmission Pan. ATS also rates the Stage 1 package at 400 horsepower. :contentReference[oaicite:1]{index=1}

Key Features:

• ATS built 48RE automatic transmission
• ATS 5 Star Viskus Clutch Drive Torque Converter included
• ATS Extra Deep Transmission Pan included
• Stage 1 package rated for up to 400 horsepower
• Increased clutch count in the forward, overdrive, and overdrive brake clutch packs
• BorgWarner and Raybestos clutch materials for strength and longevity
• BorgWarner Red Lining bands for improved holding capacity
• Billet band strut and billet accumulator piston
• Valve body modifications for improved line pressure and shift firmness
• 1st and 2nd gear lockup capability

FAQ

What comes in the ATS 309-914-2272 package?
This package includes an ATS built 48RE automatic transmission, ATS 5 Star Viskus Clutch Drive Torque Converter, and ATS Extra Deep Transmission Pan. :contentReference[oaicite:2]{index=2}

What trucks does this fit?
It fits 2003 to early 2004 Dodge Ram 2500 and 3500 4WD diesel applications with the 5.9L Cummins and 48RE automatic transmission. :contentReference[oaicite:3]{index=3}

What makes this better than stock?
ATS upgrades clutch capacity, band components, accumulator hardware, and valve body calibration to improve holding power, shift quality, and reliability under towing and higher-load use. :contentReference[oaicite:4]{index=4}

Is this a good option for towing and daily use?
Yes. ATS describes the towing version as delivering smooth, quick, crisp shifts for street driving and trailer use, making it a strong all-purpose upgrade for work and tow rigs. :contentReference[oaicite:5]{index=5}

Fitment:

• 2003 Dodge Ram 2500 4WD Diesel
• 2003 Dodge Ram 3500 4WD Diesel
• Early 2004 Dodge Ram 2500 4WD Diesel
• Early 2004 Dodge Ram 3500 4WD Diesel
• 5.9L Cummins engine
• 48RE automatic transmission

Note: Early 2004 fitment is specific to the early-production 2004 configuration. Always verify transmission and vehicle build details before ordering.

Specifications for ATS 309-914-2272