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Thread: Help My 1st ever Willy - Can not identifiable but on engine - Help ??

  1. #1
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    Help My 1st ever Willy - Can not identifiable but on engine - Help ??

    I need help please to identify my M151 - No identifying Mfg Data Plate on M151 -But identifier on engine

    Unit looks like a M151A2 to me - But
    This is my 1st ever Willy amd 1st ever Project Vehicle as well - Double Lost in this ?? Lol

    1st itís a Diesel ? - have not seen or knew that one
    Unknown Code then Part# 8754411
    DOD Contract #
    DA-20-113-AMC-07506 (T) (MYP)
    RPM Rated for 4000
    Firing Order 1-3-4-2

    Any help at all is fantastic whether itís the year of Engine or Years and models these engine were install in the M151 series

    Hard Body is but a solid single unit as well

    I can not find a darn thing anywhere

  2. #2
    Super Moderator gmwillys's Avatar
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    Welcome LMDMD,

    There are a couple of quick things to look for to determine the vintage of your M151. The easiest is the shape of the front fenders. The A2s had a flat fender, then a step down on the leading edge for the more modern/larger turn indicators. The second is not as easy to determine without crawling underneath. The geometry of the rear suspension is improved from the earlier models. The lower A arms mount across the width of the MUTT, instead of mirroring the mounting of the front A frames. This made the platform much more stable in quick steering inputs. The early series had a hard earned reputation for rolling over in emergency maneuvers over 45 MPH.

    The engine was a 141.5 C.I. 4 cylinder gas engine. Earlier models were powered by an AMC engine, then the later A2s were powered by a Ford Industrial 4 cylinder. Being that you are seeing the tag with a rated RPM of 4,000, it would be a gas engine. A diesel 4cylinder wouldn't like that much engine speed. What might be leading you to presume that your engine is a diesel is the size of the waterproof plug wires and plugs. They can look like diesel injectors at first glance.

    The pictures included are as follows;

    The first is of an M151A2 with the fender modified for the modern turn indicator lamp housing.

    The second is of an M151 with the flat fender.

    The third is of the Ford Industrial engine

    The fourth is of the A2 rear suspension configuration.

    The fifth is another angle on the rear suspension configuration on the A2.

    Please post some pictures to better help you out.
    Attached Images Attached Images
    Last edited by gmwillys; 01-13-2021 at 12:15 PM.

  3. #3
    Super Moderator LarrBeard's Avatar
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    What is it?

    Quote Originally Posted by LMDMD View Post
    I need help please to identify my M151 - No identifying Mfg Data Plate on M151 -But identifier on engine
    Unit looks like a M151A2 to me

    Here is a quick overview of the M151 MUTT:

    https://jeep.fandom.com/wiki/M151_MUTT



    1st itís a Diesel

    If it has a firing order 1-3-4-2, it is probably not a diesel. I see references to the distributor and to "petrol" engine, so I'd bet it is a gasoline engine, BUT - I also see a number of references to retrofits of small diesels.



    ? - have not seen or knew that one
    Unknown Code then Part# 8754411
    DOD Contract #
    DA-20-113-AMC-07506 (T) (MYP)
    RPM Rated for 4000
    Firing Order 1-3-4-2

    The "AMC" probably references to an American Motors production contract.

    The original engine was nicknamed the "Hercules" engine.


    I can not find a darn thing anywhere
    Pictures will help us figure this critter out...

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