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  1. #1
    Platinum Member
    Join Date
    Jan 2012
    Posts
    933
    Tractor
    2012 John Deere 3520 Deluxe Cab

    Default 3x20 and 4x20 tractor horn

    I didnt have horn installed from factory. I looked around the machine and noticed the wires are ran for one regardless. The wires for the horn were ziptied to the headlight wires and the swithc button wires were zip tied right under the dash. Bought some car horns at harbor freight for 11 bucks with my 20 percent off coupon ( 2 Piece 12 Volt Electric Horn Set). You dont need the relay included obviously. Install took about 5 minutes and mounted to headlight frame. However still need to go get a nice momentary switch that will fit in the opening i have the wires hanging out of. Found a couple used for boats on ebay.
    Heres a some video i just took.
    Video 1 - YouTube


    update: bought today a Radio shack spst momentary switch 3 bucks for pack of 2
    Last edited by shortthrow50; 10-10-2012 at 07:08 PM.

  2. #2
    Platinum Member bubbacuse77's Avatar
    Join Date
    Jul 2008
    Posts
    541
    Location
    Wisconsin
    Tractor
    John Deere 3520, John Deere X749

    Default Re: 3x20 and 4x20 tractor horn

    Does JD have a factory switch you can order? I would be interested in a horn install myself.

  3. #3
    Platinum Member
    Join Date
    Jun 2009
    Posts
    679
    Location
    wyoming

    Default Re: 3x20 and 4x20 tractor horn

    for cab machines it is lvb24851, is about $45 kit.

  4. #4
    Platinum Member
    Join Date
    Jan 2012
    Posts
    933
    Tractor
    2012 John Deere 3520 Deluxe Cab

    Default Re: 3x20 and 4x20 tractor horn

    Quote Originally Posted by bubbacuse77 View Post
    Does JD have a factory switch you can order? I would be interested in a horn install myself.
    Not worth it to buy the switch from john deere. I priced out the switch on jdparts.com and the switch and cover is 33 dollars just for the 2 components. I went to radio shack and bought a single throw single pole momentary switch for 3 bucks which consisted of 2 switches. Ill throw the other one out unless you want it. I drilled a whole just big enough for the switch to fit in the empty switch plate in my dash (see picture below). The factory horn switch requires you to drill through the dash.




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