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Allis HD21 Starter

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=84068
Printed Date: 30 Jun 2025 at 6:14am
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Topic: Allis HD21 Starter
Posted By: everett048
Subject: Allis HD21 Starter
Date Posted: 30 Jan 2014 at 2:05pm
Do any of you guys know  for a early 1955 HD21/HD16 starter with 12 teeth on the Bendix for the Buda engine ideally a foot operated starter would be great but any leads would help.Engine is a HDS 844 Prior to serial no 90001.
regards.
Mark


Replies:
Posted By: Coke-in-MN
Date Posted: 30 Jan 2014 at 2:15pm
HD-2173-6821000 DIESELDELCO SYSTEMDR2450MT1109986 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0149" rel="nofollow - AHSDR0149
HD-2173-6821000 DIESELDELCO SYSTEMDR2440MT1113898 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0017" rel="nofollow - AHSDR0017
HD-2167-6021000 DIESELDELCO SYSTEMDR2450MT1109986 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0149" rel="nofollow - AHSDR0149
HD-21G70-6821000 DIESELDELCO SYSTEMDR2450MT1109986 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0149" rel="nofollow - AHSDR0149
HD-2173-6821000 DIESELDELCO SYSTEMDR2450MT1109986 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0149" rel="nofollow - AHSDR0149
HD-2173-6821000 DIESELDELCO SYSTEMDR2440MT1113898 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0017" rel="nofollow - AHSDR0017
HD-2167-6021000 DIESELDELCO SYSTEMDR2450MT1109986 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0149" rel="nofollow - AHSDR0149
HD-21G70-6821000 DIESELDELCO SYSTEMDR2450MT1109986 http://www.psep.biz/store/allis_chalmers_crawler_starter_motors.htm#AHSDR0149" rel="nofollow - AHSDR0149


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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Coke-in-MN
Date Posted: 30 Jan 2014 at 2:17pm
Looks like one could use a 50MT or 40 MT starter motor and just replace the drive to 12 tooth .
It would be a new style starter with solenoid rather than foot switch 

The new Titan™125 Series starter motors are designed specifically for large bore diesel 
engines up to 16 Liters.
12 Volt Applications
12V CW 14 1.909”
48.5mm
M125600
Mod 3
292.5o
50.58
Front View Details Teeth
Pitch Pinion at rest
Pinion Details
OD
82.5o
12V CW 11 1.909”
48.5mm
M125601
6/8 46.5mm
Front View Details Teeth
Pitch Pinion at rest
Pinion Details
OD
12V CW 11 1.909”
48.5mm
M125632
6/8 57.6mm
Front View Details Teeth
Pitch Pinion at rest
Pinion Details
OD
12V CW 12 1.909”
48.5mm
M125634
8/10 46.3mm
Front View Details Teeth
Pitch Pinion at rest
Pinion Details
ODwww.prestolite.com 9
The new Titan™125 Series starter motors are designed to cross reference the following 
competitor models:
12 Volt C


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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: everett048
Date Posted: 30 Jan 2014 at 2:21pm
Thanks Coke i have just got some more info on it,it was made in 1955 fitted with a HDS 844 motor.
regards.

Posted By: CAL(KS)
Date Posted: 30 Jan 2014 at 7:52pm
i have a parts HD16 with lanova engine should be same as HD21 engine but no supercharger.  you looking for complete starter or just bendix gear?  ill have to check the machine, dont recall for sure what i have.

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

Posted By: everett048
Date Posted: 31 Jan 2014 at 1:39am
Cal it is not for me a collector over here is looking for the correct 1 to put back on his 1955 hd21 with the 844 hds motor in it (foot operated)
regards
Mark

Posted By: Coke-in-MN
Date Posted: 31 Jan 2014 at 12:21pm
After rebuilding my HD5 starter several times - the last time I went to the 40MT starter as field coils in original unit went bad and finding those came out to about same price as fully rebuilt late style. 
 Having a solenoid to advance the drive unit into flywheel rather than foot lever has worked great for me.  


-------------
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: Norm Meinert
Date Posted: 31 Jan 2014 at 12:52pm
Dave, I can get a new starter. Have Arthur call me later.

norm

Posted By: everett048
Date Posted: 31 Jan 2014 at 2:59pm
Norm i will ring Arthur tonight.
regards
Mark


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