Yesterday's Tractor Co.
Shop Now View Cart
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life

Farmall & IHC Tractors Discussion Board

Re: 806 D Alternator

[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]

Posted by Jon Hagen on June 22, 2013 at 17:21:34 from (

In Reply to: Re: 806 D Alternator posted by Jon Hagen on June 17, 2013 at 22:54:09:

If your wiring harness is in good condition, there is no reason to cut it up to install a 10SI alternator.
When doing a rebuild of my 856, which included $500 of new wiring harness. I was not about to cut anything up to convert from the stock external regulator 10DN alternator to a 10 SI type.

I was able to simply adapt the wiring by removing the original external regulator( in the compartment down by your feet) and simply making a jumper wire to connect the outermost right and left regulator plug terminals.

To adapt the wiring at the new 10SI alternator, all that was necessary was to install an auto parts store harness repair plug designed for most any 74-84 GM product with 10 SI alternator. You attach a blade terminal to The white (#1)wire from the 10 SI alternator plug, and plug it into the F terminal of the tractors original harness alternator plug

Tape up this connection to protect it from weather or shorting. Connect the heavy red wire from the new alternators regulator plug using a ring terminal to attach it to the BAT stud on the alternator rear. This is all that needs to be done to adapt the original external regulators 10DN wiring to an internal regulator Delco 10 SI alternator. This will wire the tractor so the stock charge light will work with a ("1 wire") 10SI type alternator, or any standard 3 wire 10 SI alternator.
The original IH charge light works with no other changes.
The attached picture is of the several year old conversion done to my 856. The lump where the white wire enters the harness is the original harness alternator plug still atached. No need to cut up the original harness. It adapts easily to the 10SI type alternator.


Add a Reply



Optional Link URL:
Link Title:
Optional Image URL:
Optional Video Title:
Optional Video Embed:

Advanced Posting Options

Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

Advanced Posting Tools
  Upload Photo  Select Gallery Photo  Attach Serial # List 
Return to Post 

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2016 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters