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Chassis vs engine s/n's

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment -Knowledge Base
Forum Description: Long term storage of technical article, etc
Printed Date: 21 Mar 2023 at 3:30am
Software Version: Web Wiz Forums 11.10 -

Topic: Chassis vs engine s/n's
Posted By: DrAllis
Subject: Chassis vs engine s/n's
Date Posted: 05 Jan 2023 at 10:15am
1967 D-17 IV - 88779 / 17- 76066-M engine...........1954 WD45-207288 / 45-81751-G engine.......1957 WD-45-232994 chassis/ 45-94197-G engine.     Trying to establish engine ages versus chassis age by s/n.

Posted By: Gary
Date Posted: 07 Jan 2023 at 6:56am


You will be pleased to know that Bryan Smith, along with info from Ed Mills, has already done this for a number of Model Tractors.

See attached Link to Bryans' Website:

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Posted By: DrAllis
Date Posted: 07 Jan 2023 at 7:40am
I've been somewhat aware that there has been an attempt at this before. If you look at that "assumption" chart, his chassis number age of 207288 doesn't match the engine number age of 81751. I felt this particular chassis/engine combo is legit and is exactly how the tractor was built.  EDIT: I've just now checked my own 1957 WD-45 chassis at 232994 and the engine is 45-94197-G. Both check out to be early 1957. I'm thinking March at 300 tractors per week build rate.

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