Engine Brake for Cummins N14

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by LandslideRich, Oct 9, 2018.

  1. Inderjit

    Inderjit Heavy Load Member

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    Sep 17, 2017
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    Installing the Jake Brakes or C-Brakes is not a big deal Remove the valve covers and remove the oil supply plugs in the rocker housings and put the gaskets on and bolt the brake housings on.
    Make sure that the engine has the wide valve bridges on the exhausts if not they can be installed by removing the adjusting screws from the exhaust rocker arms and rolling the arms back. Be careful not to drop anything in the engine. Probably a good idea to set all the valves and injectors while your in there setting the engine brakes.
    Depending if your engine is a phase 1 or 2 the wiring is different. A 2000 should be a phase 2.
    The phase 2 engine brakes were powered out of the ECM so you will have to get the harness and install it. You will have to install the dash switches and wiring as well. If the truck has cruise control it should have a clutch switch, if not that will have to be installed as well. The ECM may have to be reprogrammed to make the engine brakes work.
    Cummins has some very nice laminated wiring diagrams that show where the connectors go in the ECM connectors. Well worth the price.
    The installation and additional wiring is not a big job to a competent mechanic.
     
    Last edited: Nov 22, 2019
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  3. Coffey

    Coffey Heavy Load Member

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    May 14, 2019
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    Well I bought the one with 800000 miles on it it sounds good shift gears good and he lowered the price IMG_20200502_144029.jpg
     
  4. Masai4help

    Masai4help Bobtail Member

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    Feb 8, 2022
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    Hi, I just bought a truck with the same specs. Do you get help finding about jakes or exhaust brakes? Thanks you
     
  5. Masai4help

    Masai4help Bobtail Member

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    Feb 8, 2022
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    Hi
    Just bought a truck with same specs as you. Did you get any help with the jakes or exhaust brake installation? Thank you.
     
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