(800) 853-2651
SHOP NOW

autolite 3077 spark plug

M

MrJDMan80

Member
Stopped in to napa the other day for some extra plugs for the D and anything else with a 7/8" plug hole. Was told the 3077 plug has been discontinued, although they did have some on the shelf yet. Told dad and he ordered a bunch.
What other plugs are availible for that plug hole that are worth a darn?
Tim
 
The 3076 is what is supposed to be in there. The 3077 will work, but it is a totally different design. Not intended to be a step up from the 3076.
 
the 3077 is a very hot plug, with an extended tip. works great for parade use and light duty use, especially in the old low compression rich running tractors that are always fouling plugs. The 3076 is a better choice for plow day use.
 
I cant speak for your use, but the 3077 is a great plug for letter series Farmalls. Ive used the 3076 with some luck in my F14, but it really likes the 3077s. I cant recall the AC number off the top of my head, but its a good plug equal in quality to the 3076. Per my source who works for "Autolite", the 3077 is being discontinued in its current form, but will resemble a more conventional plug in the near future, but still be in the same heat range as the old version. As for is not suppose to be in there, well, I suppose the Chinese parts SOME "parts dealers" are selling arent suppose to on there either, but he still sells them!
 
On the tractors that you parade and use light duty the hotter deep reach side wire electrode 3077 performs much better then the colder standard 3076. If you use the tractor as it was designed for, hard hot heavy use plowing all day etc Id use the 3076.

John T
 
3077 works great in my '37 JD B which doesn't see hard work any more. I use 3076 in my '48 JD D, which does see normal work regularly. Guess I need to pick up some more 3077's to be sure I don't run short, but I have never fouled one.
 
You must log in or register to reply here.

Similar threads

J
JD300 Backhoe Loader Spark Plug Overheating
2 3
Replies
54
Views
2K
Jim.ME
J
R
Ford 8n - Backfire / Misfire
Replies
12
Views
541
Eman85
E
W
Ford 9N Spark Plugs arcing at the boots
Replies
11
Views
589
Tom in St. Louis
T
S
1951 JD A tractor spark plug question
Replies
6
Views
522
John T
J
M
8n doesn't want to start. Oil in cylinder 2?
Replies
17
Views
11K
Tim PloughNman Daley RIP
T
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