ATS Diesel NV5600 Transmission

1999–2004 Dodge Ram 2500 / Ram 3500

3119622236

Overview:

The ATS Diesel NV5600 Transmission is a robust and reliable replacement transmission designed specifically for Dodge Ram 2500 and Ram 3500 trucks from 1999 through 2004. Engineered to handle the demanding torque and power output of heavy-duty diesel engines, this transmission is ideal for truck owners seeking enhanced durability and performance in their drivetrain. Whether you are restoring your truck or upgrading for improved reliability, the ATS Diesel NV5600 offers a direct fit solution that maintains factory specifications while providing long-lasting service.

Built to withstand the rigors of towing, hauling, and off-road use, this transmission is perfect for Dodge Ram owners who require a dependable and heavy-duty manual transmission option. It fits multiple trim levels including Base, Laramie, SLT, and ST, ensuring broad compatibility across popular Ram 2500 and 3500 models.

Key Features:

This ATS Diesel NV5600 Transmission combines rugged construction with precision engineering to deliver dependable performance. Key features include:

• Direct fit replacement for Dodge Ram 2500 and 3500 models from 1999 to 2004
• Designed to handle high torque loads typical of diesel-powered trucks
• Compatible with 2WD configurations
• Durable internal components engineered for extended service life
• Maintains factory gear ratios for consistent drivability
• Precision-machined gears and shafts for smooth shifting
• Heavy-duty synchronizers to reduce gear clash and improve shift quality
• Corrosion-resistant housing for enhanced durability in harsh environments
• Manufactured by ATS Diesel, a trusted name in diesel drivetrain components

Construction & Design:

The ATS Diesel NV5600 Transmission is constructed with high-strength materials selected to endure the stresses of heavy-duty use. The transmission housing is made from rugged cast aluminum alloy, providing an excellent balance of strength and weight savings. Internally, hardened steel gears and shafts ensure reliable power transfer and resistance to wear under demanding conditions.

Advanced engineering techniques are employed to optimize gear tooth profiles and synchronizer design, resulting in smooth, precise shifts and reduced drivetrain noise. The transmission’s robust design supports the high torque output of diesel engines commonly found in Dodge Ram 2500 and 3500 trucks, making it a dependable choice for both work and recreational applications.

Installation & Fitment:

This transmission is a direct bolt-in replacement for 2WD Dodge Ram 2500 and 3500 trucks from model years 1999 through 2004, including Base, Laramie, SLT, and ST trims. Installation requires no modifications to the vehicle’s drivetrain or chassis, allowing for a straightforward swap that minimizes downtime. It is recommended that installation be performed by a qualified technician familiar with manual transmission systems to ensure proper alignment and operation.

What's Included:

• ATS Diesel NV5600 Transmission assembly
• Seals and gaskets necessary for installation
• Installation hardware as required
• Detailed installation instructions

Ideal For:

This transmission is ideal for Dodge Ram 2500 and 3500 owners who need a durable, high-performance manual transmission capable of handling heavy loads and demanding driving conditions. It suits truck enthusiasts, fleet operators, and anyone requiring a reliable drivetrain component for towing, hauling, or off-road use. The ATS Diesel NV5600 is also a great choice for those restoring older Dodge Ram trucks to factory specifications with improved durability.

ATS Diesel Performance builds diesel upgrade solutions engineered for higher torque, towing confidence, and competition-level durability. Best known for performance-built transmissions, ATS also offers turbochargers, exhaust and fuel system components, and other supporting parts designed to handle heavy loads and elevated power on modern diesel trucks.