Cummins info

Discussion in '5.9L 3rd Gen Cummins' started by chevyman98, Jul 23, 2011.

  1. chevyman98

    chevyman98 Registered User

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    I been looking into getting a cummins at least 03 and up for the crew cab. I really would like to have a standard. Now the main question is pros and cons between the 5.9 and 6.7 ? Any info would be great.
     
  2. tonkadoctor

    tonkadoctor Full Access Member

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    5.9 No emmissions BS, the 6.7 has EGR DPF.
    5.9 is a little bit better on fuel economy.

    - 2003, 2004 you could get an NV4500 5 speed behind the standard 5.9
    - 2003, 2004 the NV5600 six speed came with the HO version
    - 2004.5 early 2005 The NV5600 was standard, no NV4500 offered, no longer an HO 5.9 From Cummins. 04.5 5.9 upped the HP & Tq to 325/600. Exhaust size was increased to 4" from 3.5" and a catalytic converter was added in 2004.5
    - Late 2005 and up six speed was the Mercedes G5600 and they went to a dual mass flywheel

    IMHO The NV5600 is the best of the 3
     
  3. rufushusky

    rufushusky Registered User

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    Well you get some BS with the CR 5.9s with the third injection event and cat and all that fun stuff in the 2004.5+ trucks.

    SWEET ZOMBIE Thread on my part.
     
  4. derek661989

    derek661989 Registered User

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    so get an 03-early 04 and you get no bs. no egr no cat, a waste gated turbo, no nothing but the joys of common rail and pulse injection.
     

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