D18 day
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=209417
Printed Date: 04 Feb 2026 at 5:26am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D18 day
Posted By: Mikez
Subject: D18 day
Date Posted: 19 Dec 2025 at 12:37am
Just thought about the D18. Happy D18 day. This is the only picture I seen of it. |
Replies:
Posted By: IBWD MIke
Date Posted: 19 Dec 2025 at 6:53am
| Thought about that yesterday too Mike. |
Posted By: Mikez
Date Posted: 19 Dec 2025 at 8:16am
| Mike do you have d19 for today |
Posted By: IBWD MIke
Date Posted: 20 Dec 2025 at 6:50am
| I do not. Was hoping someone would start that post. |
Posted By: plummerscarin
Date Posted: 20 Dec 2025 at 7:55am
| I was hoping some would post a couple. Guess not. Too late. Maybe next year |
Posted By: DanWi
Date Posted: 20 Dec 2025 at 3:36pm
| Tomorrow the D21? |
Posted By: Gary
Date Posted: 20 Dec 2025 at 6:09pm
|
The Forum 'Owner Registry' had 132 D-19 Owners Registered in 2019. G -------------------------------------------------- There were 134 D-21 owners registered in 2019. |
Posted By: plummerscarin
Date Posted: 20 Dec 2025 at 7:03pm
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[QUOTE=Gary] The Forum 'Owner Registry' had 132 D-19 Owners Registered in 2019. G How many of these owners are still checking in today I wonder |
Posted By: HudCo
Date Posted: 20 Dec 2025 at 10:26pm
| how about all the d17s with 262 gassers put in does that count? |
Posted By: plummerscarin
Date Posted: 20 Dec 2025 at 11:45pm
| My dad swapped in a 262 gas in a WD. We called it the D19 back then. Was planning to get a custom decal made when I get it closer to running |
Posted By: 55allis
Date Posted: 20 Dec 2025 at 11:59pm
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This caught my eye, never heard of a d18, does anyone own one? Or is it a mystery tractor? I have a wd45 diesel with the 262 engine and turbo. The original 45d hood was stretched over the turbo and dry air cleaner. ------------- 1955 AC WD45 diesel with D262 repower, 1949 AC WD, 1963 A-C D17 series 3, several Allis garden tractors 
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Posted By: IBWD MIke
Date Posted: 21 Dec 2025 at 6:51am
D-18 was an experimental model. It's talked about on page 94 of Norm's bible. It was decided that it was not enough bigger than the 17 so they upped the power and made the D-19.
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55allis wrote:Posted By: DrAllis
Date Posted: 21 Dec 2025 at 7:17am
| There was a picture posted on here some time back of a left/front side view of a D-18 proto. It was determined (at a late hour) that the D-18 experimental looked a little anemic (hood size/front axle beef) and then, only coming in at about that 60 to 63 HP size, which almost wasn't enough more for a 5 bottom plow, as compared to the D-17 with 4 bottoms ( say 13 to 14 HP per bottom). Also, the new 4010 John Deere had just come out in August of 1960. It was rated at 80 HP, far more than what the D-18 was going to be. I'd imagine the day after the new 80 HP 4010 was released, was when AC design engineers began thoughts of turbo-charging the D-262 AC/Buda. The gas engine just got more carburetor to reach 71 HP. |