CJ-2A ENGINE ID Help U51084

1945 - 196*, Willys CJ series, questions, discussions, regarding anything related to the post war jeep.®
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Brad Gates
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CJ-2A ENGINE ID Help U51084

Post by Brad Gates » Fri Nov 17, 2017 8:27 am

Guys,
Recently acquired a "barn find" 2A with an L-4 that was parked with the hood up. Birds, mice and other critters made it their home. Engine is locked, rusted and beyond a costly fix. I found that the L-4 engine has an intake/carb like the early wagon or jeepster. Any help as to this engine application is appreciated. Very faint stamping............. U 51084
Thanks,
Brad

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Re: CJ-2A ENGINE ID Help U51084

Post by athawk11 » Fri Nov 17, 2017 1:05 pm

"U" engines were in Wagons. I believe U stands for Utility.

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Re: CJ-2A ENGINE ID Help U51084

Post by Steve Webb » Fri Nov 17, 2017 7:23 pm

it does stand for Utility and the panel truck/wagon used them
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Brad Gates
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Re: CJ-2A ENGINE ID Help U51084

Post by Brad Gates » Sat Nov 18, 2017 1:07 pm

THANKS,

Does this number fall into an early, mid or late production range? Just curious. No plans to rebuild the engine as I have better donor engines.
Appreciate the response.

Brad

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Re: CJ-2A ENGINE ID Help U51084

Post by Bob W » Sat Nov 18, 2017 6:01 pm

What is the casting number?
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Re: CJ-2A ENGINE ID Help U51084

Post by Steve Webb » Sat Nov 18, 2017 8:41 pm

This certainly is not an end all reference but if the 6 came out in 48 it would indicate 46 or 47 year.

oops I didn't put the wiki link up.
Last edited by Steve Webb on Tue Nov 21, 2017 8:06 pm, edited 1 time in total.
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Re: CJ-2A ENGINE ID Help U51084

Post by Brad Gates » Mon Nov 20, 2017 8:13 am

Gentlemen,

Casting numbers; CC
12-10 641087-L-W4 AN1-CR-N2

Thanks for the help,

BRAD

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Re: CJ-2A ENGINE ID Help U51084

Post by Bob W » Mon Nov 20, 2017 4:14 pm

I'd say 1947 but I'm not positive. Hopefully Sean Collins sees this thread, he would know for sure.
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Re: CJ-2A ENGINE ID Help U51084

Post by Sean Collins » Sun Dec 10, 2017 4:02 pm

Sorry guys, though this thread had been fully resolved.

"U" prefix engines were used in model 4-63 vehicles (Station wagons, Panel Delivery, etc).

1948 4-63 serial numbers went from 44051 to 84825, so U-51084 is '48
 

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