Jeep® Heritage | 1951 Jeep Willys CJ-4M


Each Friday on the Jeep® Blog, we explore the Jeep brand’s iconic heritage by highlighting a different historical vehicle. This week’s vehicle is the 1951 Jeep Willys CJ-4M.


Have you ever seen a 1951 Jeep® Willys CJ-4M? Heck, are you aware of its existence? The CJ series featured the CJ-2A, CJ-3B, and then the CJ-5 in 1955. As a result, many enthusiasts have often wondered what happened to the CJ-4. It’s a relatively obscure vehicle with little information and history, but it did, in fact, exist – as the prototype shown in these photos.



The CJ-4M, also known as the M-38E1, was a transitional vehicle, a variant of the CJ-3A with a taller cowl and rounded hood. The new features cleared space to fit the new F4-134 “Hurricane” engine under the hood. However, despite the apparent quality of the build, it only existed as prototype. The historical purpose of the CJ-4M, then, became to link the CJ-3A to the next military-specific model, the new Jeep Willys MD.

The U.S. Army eventually purchased approximately 82,000 Jeep Willys MD vehicles. The MD was a new, more powerful vehicle and ended up adopting the rounded hood, tall cowl, and nose of the CJ-4M. Mechanically, however, it was much different. Keep following the Jeep Blog for Heritage Fridays as we dig into the Jeep brand’s iconic history, including more about the MD.


13 Responses to “Jeep® Heritage | 1951 Jeep Willys CJ-4M”

  1. James A. Battista

    If they maid one like this tomorrow I would buy it.I had a 1946 willies and loved it, long live JEEP!

  2. I love jeeps had one that my x total on me and then I got sued oh well better now still miss my jeep I have a doge dorango 2002 4 wheel but nothing’s like a jeep

  3. Richard MBSC

    I remember when I was a kid my uncle had jeep truck and it went though anything

  4. of course like your web site but you need to check the spelling on several of your posts. Several of them are rife with spelling problems and I to find it very troublesome to inform the reality then again I¡¦ll definitely come again again.


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