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Bosch 370HP Cummins Marine Injectors 94-98 12V Dodge 5.9L

Bosch 370HP 5.9L 12 Valve Cummins Marine Injectors

From Bosch Bosch




370 Bosch Marine Injectors with install kit

Bosch Diamond B 370 Marine injectors
for the 1994-1998 Dodge Ram equipped with the 5.9L 12 valve Cummins turbo diesel.

  • Will add up to 100hp depending on the injection pump, and cam plate installed.
  • Capable of supporting massive hp with supporting mods.
  • Medium to High Smoke Levels
  • Great mid to high horsepower application. Will roll the smoke when wanted!

All horsepower levels are approximate increases compared to stock injectors. Other fuel and air flow modifications will change your expected power increases. Smoke levels are relative to turbo and other air flow modifications.

These values are listed primarily to allow customers to compare performance levels of different injectors, so they can better choose the right ones for their needs. A set of 370 injectors may produce much higher smoke levels on a stock turbo compared to a set of twins. But for the same turbo/air flow setup a set of 215's will produce "lower" smoke levels compared to 370's which will produce "medium to high" levels for the same setup.

These are the same injectors used in the 370 HP Cummins Marine engines.

 Set includes Installation kit

Stock HP Rating

Power Addition with 370 Injectors


Additional 80 Rear Wheel HP

175 or 180HP**

Additional 60 Rear Wheel HP


Additional 50 Rear Wheel HP


**Delivery valves recommended to smooth low RPM chatter.

Please note: Marine 370HP injectors are designed for the 370hp 5.9L 12 Valve Cummins marine engine. Marine 370hp engines have a different (large) piston bowl design than a 94-98 5.9L 12 Valve Cummins, therefore, these injectors may make a little more black smoke and possibly even blue/white smoke when the engine is cold. These injectors make cheap horsepower, but it may not be the "coolest egt" or "cleanest" horsepower.

These injectors are a direct Bosch replacement for Cummins part number 3897596.

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