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Restomod Member
Joined: Jun 23, 2017 Posts: 24
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Posted: Fri Nov 10, 2017 5:28 pm Post subject: M38a1 Retrofit with Mutt Vac Wiper Motor |
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I've obtained a couple of NOS Vacuum Wiper Motors that have 3 Sets of #'s
Top - 2540-00-6778-1340
Mid - DAAE07-80-C-7993
Lower - A-8/81
I figure the lower one is date of Mfr, so these must be M151 Mutt vacuum wiper motors.
Would the M151 wiper motor be a direct replacement for the M39a1 wiper motors?
If it isn't, what has to be modified to make them fit (new brackets, etc)
Can the original wiper arms be used or do those have to be replaced? |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3444 Location: Texas Hill Country
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4x4M38 Member
Joined: May 30, 2014 Posts: 3444 Location: Texas Hill Country
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Restomod Member
Joined: Jun 23, 2017 Posts: 24
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Posted: Fri Nov 10, 2017 6:41 pm Post subject: |
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Thanks for the link, when I put in searches I didn't get any hits. |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3444 Location: Texas Hill Country
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16241 Location: Wisconsin
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Posted: Sat Nov 11, 2017 12:14 am Post subject: |
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Quote: | Top - 2540-00-6778-1340
Mid - DAAE07-80-C-7993
Lower - A-8/81 |
Your NSN has a typo. Only 3 digits in the 3rd group of numbers of a NSN. -678- is correct.
That is a Trico wiper motor PN SK527-16, US Army ORD# 7017830 NSN 2540-00-678-1340 as used on the M151 series.
Important specs are:
THROW ANGLE IN DEG - 135.0
ACTUATING SHAFT END CONNECTION TYPE - SERRATED
ACTUATING SHAFT LENGTH 2.750 INCHES NOMINAL
OUTSIDE DIAMETER 0.250 INCHES NOMINAL
MOUNTING HOLE DIAMETER 0.190 INCHES NOMINAL
MOUNTING HOLE QUANTITY 2
MOUNTING HOLE SPACING 3.625 IN. C TO C
MOUNTING HOLE THREAD SIZE 0.90-24
The Late M38A1 series small paddle Trico S583-1 or ORD# 500844 or NSN 2540-00-262-7576 specs. These are the same as the early M38A1 & M38
THROW ANGLE IN DEG - 130.0
ACTUATING SHAFT END CONNECTION TYPE - THREADED
ACTUATING SHAFT LENGTH 1.703 INCHES NOMINAL
OUTSIDE DIAMETER 0.250 INCHES NOMINAL
MOUNTING HOLE DIAMETER 0.190 INCHES NOMINAL
MOUNTING HOLE QUANTITY 2
MOUNTING HOLE SPACING 3.625 IN. C TO C
MOUNTING HOLE THREAD SIZE 0.190-32 _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Last edited by wesk on Sun Nov 12, 2017 3:54 am; edited 1 time in total |
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4x4M38 Member
Joined: May 30, 2014 Posts: 3444 Location: Texas Hill Country
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