John Deere 3020 Diesel Row Crop (Up to Serial #67,999) Complete Wiring Harness (Synchro Range; Modified for 12-Volt, 10SI Delco Alternator)
$557.00
#B3028-188, Complete Wiring Harness for John Deere 3020 Diesel Row Crop (Up to Serial #67,999) Synchro Range Tractors
Modified for use with a Replacement 12-Volt, 10SI Delco Alternator
(Note: May be used with a 1-wire alternator; however, the charge indicator lamp will not work.)
- 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
- Each Wire Comes Numbered with an Installation Guide
Does not include battery cables & spark plug wire sets;
however, we can supply these as separate products.
Components:
Main Engine Harness (#B3028-192)
Neutral Safety Switch Harness (#B3028-114)
Lighting Harness (#B3028-101)

#B3028-188, Complete Wiring Harness for John Deere 3020 Diesel Row Crop (Up to Serial #67,999) Synchro Range Tractors
Modified for use with a Replacement 12-Volt, 10SI Delco Alternator
Replaces the Following John Deere Parts
#AR34275 Main Harness
#R33823 Neutral Safety Switch Harness
#AR26752 Switch to Fender Harness;
#AR28289, AR26753 Switch to Rear Harness
#AR26575 Rear Harness
#AR27359 Fender Harness (2 Used)
#AR27656 Starter to Rear harness (Has Fuse Holder)
| Weight | 2.84 lbs |
|---|---|
| Dimensions | 9 × 9 × 3.5 in |
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