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  1. #1

    Join Date
    Dec 2000

    Default JD 4600 Turbo??

    According to the JD literature all of the series 4000 tractors have larger cu. in. displacements as the horsepower increases, EXCEPT the 4600. The 4500 is 39Hp with 121 cu. in., and the 4600 is 43Hp with 121 Does any body know how they get that? Do they have a turbo on the 4600?

  2. #2

    Join Date
    Apr 2000
    East Central Indiana
    John Deere 4400 hydro, loader, chipper, tiller, bush hog, blade, rake

    Default Re: JD 4600 Turbo??

    Bill they turned up the pump. The 4600 has a higher max. RPM.

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