John Deere 4020 Diesel Dash & Engine Harness (12-Volt/ 10SI Alternator)
$284.00
#B3028-152, Dash & Engine Harness for John Deere 4020 Diesel Row Crop Tractors
Modified for use with a 12-Volt Delco 10SI Alternator
(Note: May be used with a 1-wire alternator; however, the charge indicator lamp will not work.)
(Also, does not include Neutral Safety Switch Harness or Fender Lighting Harness)
- Made to Look Exactly Like the Original with Our Premium PVC Wire
- Has the Correct Gauge, Color, Wire, & Fuse Holders (if needed)
- All Terminals are Soldered & Rubber Sealed
- Comes Numbered with an Installation Guide
Does not include battery cables & spark plug wire sets;
however, we can supply these as separate products.

#B3028-152, Dash & Engine Harness For John Deere 4020 Diesel Row Crop Tractors
Modified for use with a 12-Volt Delco 10SI Alternator
Replaces the Following John Deere Parts
#AR34278, #AR47660 Main Wire Harness (Includes Dash & Engine Harness)
Fits John Deere Tractors
John Deere 4020 Diesel Row Crop (Up to Serial #90,999) for use with Synchro Range Transmission & a Replacement 12-Volt Delco 10SI Alternator
John Deere 4020 Diesel Row Crop (Up to Serial #75,534) for use with Power Shift Transmission & a Replacement 12-Volt Delco 10SI Alternator
John Deere 4020 Diesel Row Crop (Serial #75,535 to 90,999) for use with Power Shift Transmission & a Replacement 12-Volt Delco 10SI Alternator
| Weight | 1.7 lbs |
|---|---|
| Dimensions | 9.5 × 9.5 × 1.5 in |
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