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12100 - AG Diesel RV Power Module ISC 8.3L & ISL 8.9L w/ CAPS Fuel System (98-05)

12100 - AG Diesel RV Power Module ISC 8.3L & ISL 8.9L w/ CAPS Fuel System (98-05)


Order Shipment Notice: 

Most orders are shipped within 24 hours from the order date. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidays are processed on the next business day. Please see our shipping terms for more information.


  • 1998-2005 ISC 8.3L w/ CAPS Fuel System
  • 1998-2005* ISL 8.9L w/ CAPS Fuel System

​*2003+ Model Year ISL 8.9L should verify that they do have CAPS and not Common Rail fuel system. Contact us with your Cummins Engine Serial # to verify if not sure.


The 12100 Performance Module Fits the ISC 8.3L and ISL 8.9L Cummins engine utilizing the CAPS fuel injection pump from 1998.5-2005. This diesel performance module is designed for optimizing the fuel delivery system to extract more power from your engine with up to 30% increase in horsepower and torque and 10-20% increase in fuel economy. Adjustable with a four position switch, Stock, +10%, +20%, & +30% power. The module doesn't flash the ECM, instead it receives the data from the ECM, optimizes the signal to the engine improving the fuel efficiency and power. Best of all, this module comes with a Lifetime Warranty.

The RV Edition module will increase your power up to 30% over stock while delivering 10-20% better fuel economy. How is this possible you ask? The programming in the module is self-adjusting based on load and will deliver more power when needed but better fuel economy when not needing it.

The module receives the data from the ECM and optimizes the signal to the engine to improve both power and fuel efficiency. True Plug-and-Play connectivity means we aren’t going to ask you to cut and splice any wires. Just connect the module into your existing factory connectors.


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WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit

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  • Views: 25315
  • Brand: AG Diesel
  • Product Code: 12100
  • Availability: In Stock
  • $984.15
  • $769.00

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