• Full kit photo

    24-Volt to 12-Volt Conversion Kit For John Deere Diesel Tractors

    $498.50
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  • John Deere 2520, 3020, 4020, 4520 Gas & Diesel Positive Battery Cable

    John Deere 2510, 2520, 3020, 4020, 4520 (Gas & Diesel) Positive Battery Cable (Original 24-Volt)

    $65.25
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  • John Deere 3020 4 Cylinder Spark Plug Wire Set

    John Deere 3020 Spark Plug Wire Set

    $21.50 – $26.00
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  • lighting harness

    John Deere 2510, 3020, 4020 Lighting Harness

    $217.25
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  • spark plug wire set

    8″ Fiber Optic Lead

    $33.99
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  • John Deere 2520, 3020, 4000, 4020, 4320, 4520 Lighting Harness

    John Deere 2520, 3020, 4000, 4020, 4320, 4520, 4620 Lighting Harness

    $291.50
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  • switch

    John Deere 4-Position Light Switch (9-Terminal, Diesel Only)

    $43.99
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  • John Deere 2510, 3020, 4020 (Gas/Diesel) Neutral Safety Switch Wire Harness (With Synchro Range)

    John Deere 2510, 3020, 4020 (Gas/Diesel) Neutral Safety Switch Wire Harness (With Synchro Range)

    $26.75
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  • switch

    John Deere 4-Position Light Switch Knob

    $14.99
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  • full harness photo

    John Deere 3010, 3020, 4010, 4020 4-Light Fender Lighting Harness (Gas/LP/Diesel Models)

    $210.00
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  • battery cable

    John Deere 3010, 3020, 4010, 4020 Gas/LP/Diesel Negative Battery Cable

    $44.00
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  • John Deere 2520, 3020, 4000, 4020, Diesel Fender Lighting Harness

    John Deere 2520, 3020, 4000, 4020, 4520 Diesel Fender Lighting Harness

    $291.50
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  • John Deere 3020, 4020 Diesel Negative Battery Cable

    John Deere 3020, 4020 Diesel Negative Battery Cable

    $28.75
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  • Full set photo

    John Deere OEM Ignition Key Switch (2 Keys Included)

    $54.99
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  • John Deere 2520, 3020, 4000, 4020 Diesel Main Wire Harness

    John Deere 2520, 3020, 4000, 4020, 4520 Diesel Main Wire Harness

    $556.25
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  • John Deere 3020 Diesel Row Crop Positive Battery Cable

    John Deere 3020, 4320, 4520 Diesel Row Crop Positive Battery Cable

    $52.00
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  • instrument harness

    John Deere 2520, 3020, 4000, 4020 Diesel Synchro Range Transmission Instrument Harness

    $182.25
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  • John Deere 3020, 4020 Gas/Diesel Neutral Safety Switch Wire Harness (With Power Shift Transmission)

    John Deere 3020, 4020 Gas/Diesel Neutral Safety Switch Wire Harness (With Power Shift Transmission)

    $41.25
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  • switch

    John Deere 4 Position Light Switch without Knob

    $37.99
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  • Full set photo

    John Deere (OEM) 3-Position Ignition Key Switch

    $79.99
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  • John Deere 3020 Diesel Row Crop (Serial #68,000-122,999) Battery To Battery Jumper Cable

    John Deere 3020 & 4020 Diesel Row Crop Battery-to-Battery Jumper Cable for Various Serial #’s

    $50.25
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  • switch

    John Deere Ignition Key Switch (6-Terminal)

    $43.50
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  • wire harness

    John Deere 2520, 3020. 4000, 4020, 4320, 4520, 4620 Instrument Harness (Synchro Range Transmission)

    $169.00
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  • dimmer switch

    John Deere Headlight Dimmer Switch

    $19.75
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  • wire harness

    John Deere 2520, 3020, 4000, 4020, 4320, 4520 Main Wire Harness

    $560.25
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  • battery cable

    John Deere 3010, 3020, 4010, 4020 Diesel Positive Battery Cable

    $69.25
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  • gauge

    John Deere 12 Volt Positive Ground Only Fuel Gauge

    $45.99
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  • switch

    John Deere 4-Position Light Switch (6-Terminal)

    $37.99
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  • John Deere 3020 Diesel Serial #68,000 To 122,999 Dash & Engine Harness

    John Deere 3020 Diesel Serial #68,000 To 122,999 Dash & Engine Harness When Converted to 12 Volt System

    $548.00
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  • Full kit photo

    John Deere Alternator Mounting Bracket Adapter, Wiring, & Pulley Kit (Diesel Only)

    $69.75
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