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Cat 3412

Discussion in 'Engines' started by Sin miedo, Jun 10, 2022.

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  1. Sin miedo, Jun 10, 2022
    #1
    Sin miedo

    Sin miedo New Member

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    What is the difference between CAT 3412 E and CAT 3412 C?
  2. Capt Ralph, Jun 10, 2022
    #2
    Capt Ralph

    Capt Ralph Senior Member

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    The E is electronic controlled.
  3. mapism, Jun 11, 2022
    #3
    mapism

    mapism Senior Member

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    Didn't the C only come in commercial ratings, with 1800rpm max rather than 2300 and obviously much lower power?
    Just going by heart, mind. I looked in my specs sheets archive, but didn't find it...
  4. bayoubud, Jun 11, 2022
    #4
    bayoubud

    bayoubud Senior Member

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    3412C is 1000hp...E model is 1400hp.
  5. Sin miedo, Jun 11, 2022
    #5
    Sin miedo

    Sin miedo New Member

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    All the boat sellers advertise 1300 HP for their 3412Cs. I am sure they are going by their spec sheets fro CAT
  6. mapism, Jun 11, 2022
    #6
    mapism

    mapism Senior Member

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    By boat sellers, you mean brokers, I suppose.
    In which case, if you think they check facts before advertising a boat, well, think again.
    There are exceptions, mind. But they are just that: exceptions (few!), rather than the norm.
    captholli likes this.
  7. bayoubud, Jun 11, 2022
    #7
    bayoubud

    bayoubud Senior Member

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    Have seen several different ratings from 650hp to 800hp. A later 3412C version did have 1350 hp. The 3412E' rated at 1400hp.
  8. Capt Ralph, Jun 11, 2022
    #8
    Capt Ralph

    Capt Ralph Senior Member

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    Each engine tune has 2 ratings;
    SAE or Gross HP at the flywheel and shaft HP.
    Failed used car sales people, now selling boats give the larger numbers, MPH and SAE HP.
    Real boat brokers usually comment in Knots and shaft HP.

    This usually explains most issues when comparing engines (or boat sales people).