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)


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


  • 1998-2005 ISC 8.3L w/ CAPS Fuel System
  • 1998-2005 ISL 8.9L w/ CAPS Fuel System
2003+ Model Years should verify that they do have CAPS and not Common Rail fuel system. You can call us with your Cummins Engine Serial # to verify if not sure.


The 12100 RV Edition module fits the ISC 8.3L and ISL 8.9L Cummins engine utilizing the CAPS fuel injection pump from 1998.5-2005. The AG Diesel RV Edition Module is designed for everyday use whether you are towing or just looking to save some money on fuel costs. We have been getting fantastic feedback from our customers regarding this module and ZERO issues.

The RV Edition module will increase your power 65HP over stock all while delivering fuel economy benefits of 1/2 to 1 mpg. They are dyno tested to a 40k load so we can ensure that you are towing safely. This module is self-adjusting based on load and will deliver up to 20% more power when needed.

And before you ask…no this does not flash your ECM! Instead we receive the data from the ECM and optimize 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.


What is the difference between this unit and the MP8 and why do you recommend a Lift pump for the MP8, but not this unit.

2000 Monaco Dynasty Manufactured Sep 1999, Cummins Model 6CTA 8.3 Li Serial #:45864919
( Ed Miller, 05/25/2016 )


The main difference is that the MP8 is a pressure control module, both fuel and boost. The added strain that the increased fuel pressure puts on the CAPS fuel pump is why we recommend the FASS lift pump. The Area Diesel is a fuel quantity/duration module that takes effect AFTER the CAPS fuel pump and essentially holds the injectors open over a longer period of time. This does not put added strain on the CAPS fuel pump which is why we don't feel the FASS pump is absolutely necessary. It is still a good idea as it protects the already failure prone CAPS injection pump but you aren't adding to the problem with the Area Diesel module.

( Support )

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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 www.P65Warnings.ca.gov

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  • $957.15
  • $709.00

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