Farm Equipment - WC spark plugs

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WC spark plugs

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=33744
Printed Date: 03 Apr 2026 at 8:17pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: WC spark plugs

Posted By: Shady Grove Farm
Subject: WC spark plugs
Date Posted: 12 Jul 2011 at 12:45pm

What spark plugs work the best in a WC you here so many opinions not this brand or that maybe a little hotter use this. In short what do you guys suggest

Replies:

Posted By: Mike Kroupa
Date Posted: 12 Jul 2011 at 1:09pm

I run 295 autolites, 303's are the hotter ones. HTH, Mike

Posted By: Bill Long
Date Posted: 12 Jul 2011 at 3:13pm

When we sold them we used AC 45, AC 47, and AC 48. That said I have heard that AC plugs are not all that good now. Preferred plus is 295 Autolites.
Good Luck!
Bill Long

Posted By: Steve in NJ
Date Posted: 12 Jul 2011 at 3:40pm

Autolite 295's are the popular plugs that work well in the AC engines. We sell quite a few of em'. Mike had mentioned the 303's are hotter. Actually, its the other way around. The 295's are the warmer range plug. In Autolite, the higher the last digit, the hotter the plug.
Steve@B&B