The Dodge Cummins Turbo Kit – Stage 3 is a Garrett GT37R dual ball-bearing turbocharger built for owners of the 2002.5-2007.5 Dodge Ram Cummins who demand serious response and long-term reliability under elevated boost. This is the choice for enthusiasts pushing their trucks harder than stock hardware was ever designed to handle, backed by Garrett’s patented cartridge engineering. It delivers the durability and airflow characteristics needed to support aggressive modification and tuning goals.
Specifications
- Turbo Model: GT37R
- Bearing Type: Dual Ball-Bearing
- Center Section: Water-cooled
- Oil Inlet Fitting: Built-in restrictor
- Garrett P/N: 759361-12
- Also Known As: GT3788R
- Alternate P/N: 759361-5012S
Performance & Application
This turbo is engineered specifically for the 2002.5-2007.5 Dodge Ram Cummins engine platform, giving owners a direct upgrade path from the factory turbocharger. Garrett’s exclusive ball bearing cartridge design eliminates the thrust bearing entirely, preventing the failures that plague turbos running at elevated boost levels. The result is a turbo that responds quickly, runs cooler, and flows more efficiently than conventional journal bearing designs, making it well suited for builds where response, efficiency, and sustained high-boost durability all matter. High-flow compressor wheels move air quickly and powerfully, supporting the reduced intake and exhaust gas temperatures that come with this upgrade.
Compatibility & Fitment
- 2002.5 – 2007.5 Dodge Ram Cummins Engine
Frequently Asked Questions
- What bearing type does this turbo use?
- It uses a Garrett exclusive dual ball-bearing cartridge for unbeatable response, efficiency, and durability.
- What vehicles is this turbo compatible with?
- This turbo is designed for the 2002.5 – 2007.5 Dodge Ram Cummins Engine.
- What does GT3788R refer to?
- GT3788R refers to this same GT37R dual ball-bearing turbo used in the Stage

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