(800) 853-2651
SHOP NOW

6v to 12v coil

H

Hankster6

New User
I know it can be done I'm looking for a part number. I have a '53 IH McCormick Farmall Super M. I have a bad 6volt coil and was told I can use a 12 volt internal resistor coil. Now I just need a part number. Thanks for the help.
 
There are no internal resistor coils, there are only coils with primary windings that are sized to run on 6V or 12V without an external ballast resistor.

6V will have a 1.5-2 ohm primary winding, a 12V coil will have a 3-4 ohm primary winding.

A 1.5-2 ohm coil can be used on 12V with a correctly sized(usually 1.5-2 ohm) external ballast resistor.
 
You stated: "I have a bad 6 volt coil and was told I can use a 12 volt internal resistor coil."

Welllllllll if you have a 12 volt tractor, sure you can use a 12 volt coil, BUT IN THAT CASE YOU WOULD NOTTTTTTTTTT USE ANY IN LINE SERIES VOLTAGE DROPPING (12 to 6) BALLAST RESISTOR.

a) If you now have a 6 volt coil as you state, but its a 12 volt tractor and there's an in line external series Ballast Resistor, DO NOT USE THE BALLAST IF YOU USE A 12 VOLT COIL.

b) If its a 6 volt tractor, you can NOT use a 12 volt coil, you need a 6 volt coil WELL DUH

NOTE 1: They did make some coils, mostly for older automobiles, that had a coil with an internal discrete stand alone ballast resistor tucked away inside the can, HOWEVER in all my years as a used tractor dealer I NEVER saw any stock farm tractor coils with internal ballast resistors hidden inside the can IE tractor coils usually DID NOT have internal ballast resistors, they were not "internally ballasted"

Got it???

John T
 
You must log in or register to reply here.

Similar threads

D
Farmall cub 12v conversion with j4 mag
Replies
5
Views
347
tractorguy2
tractorguy2
D
Need for ballast Resistor in 12V conversion
Replies
11
Views
778
Pete in Holland MI
P
F
Ford 600 Tractor Electrical
Replies
7
Views
558
FordFarm600
F
W
6volt coil in 12 volt system?
Replies
15
Views
1K
Tim PloughNman Daley RIP
T
C
12 volt conversion question
Replies
13
Views
574
used red MN
U
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 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
Website Accessibility Policy

Back
Top