
John Deere 2520, 3020, 4000, 4020, 4520 Diesel Main Wire Harness
$589.75
#B3028-157, Main Wire Harness For John Deere 2520, 3020, 4000, 4020, 4520 Diesel Tractors
For Both Synchro Range & Power Shift Transmission Models
- Made to Look Exactly Like the Original with Our Premium Cotton Braid Over PVC Wire.
- Has the Correct Gauge, Color, Wire, & Fuse Holders (If Needed).
- All Terminals are Soldered & Rubber Sealed.
- Each Wire Comes Numbered with an Installation Guide.
Doesn’t Include Battery Cables & Spark Plug Wire Sets;
However, We Can Supply These As Separate Products.
- Please Note: Our product differs only in the wiring connectors used between harnesses, as the original connectors are no longer manufactured.
- Mating connectors WILL be supplied with this harness, allowing it to connect, but this will require modification by the customer.
- Alternatively, you can purchase the full kit with all harnesses and connectors and not need to make any modifications.

#B3028-157, Main Wire Harness For John Deere 2520, 3020, 4000, 4020, 4520 Diesel Tractors
For Both Synchro Range & Power Shift Transmission Models
Replaces The Following John Deere Parts
#AR41683, AR47855, AR49349, RE42185, RE42186 Main Harness
Fits The Following John Deere Tractors
John Deere 2520 Diesel Up To Serial #22,000 With Synchro Range Transmission
John Deere 2520 Diesel Up To Serial #22,000 With Power Shift Transmission
John Deere 3020 Diesel Row Crop Serial #123,000 To #150,000 With Synchro Range Transmission (12 Volt Alternator)
John Deere 3020 Diesel Row Crop Serial #123,000 To # 150,000 With Power Shift Transmission (12 Volt Alternator)
John Deere 4000 Diesel Serial #211,492 To #250,000 With Synchro Range Transmission (12 Volt Alternator)
John Deere 4000 Diesel Serial #211,492 To #250,000 With Power Shift Transmission (12 Volt Alternator)
John Deere 4020 Diesel Serial #201,000 To #250,000 With Synchro Range Transmission (12 Volt Alternator)
John Deere 4020 Diesel Serial #201,000 To #250,000 With Power Shift Transmission (12 Volt Alternator)
John Deere 4520 Diesel Up to Serial #7127 With Synchro Range Transmission (12 Volt Motorolla Alternator)
John Deere 4520 Diesel Up to Serial #7127 With Power Shift Transmission (12 Volt Motorola Alternator)
| Weight | 2 lbs |
|---|---|
| Dimensions | 9.5 × 9.5 × 1.5 in |
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