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by **HMVYoungster** » Sun Feb 05, 2012 11:46 am

I have a L134 with the Serial stamped on the boss behind the Water pump..... MMS5079CAL What might it be? Thanks for your help.

by **sjalbert** » Mon Feb 06, 2012 1:15 pm

I suspect that's a state issued serial number. Do you have any photo's

by **HMVYoungster** » Mon Feb 06, 2012 6:07 pm

Some pictures.......

: Picture 856.jpg (145.71 KiB) Viewed 304 times

: Picture 855.jpg (140.54 KiB) Viewed 304 times

: Picture 858.jpg (148.61 KiB) Viewed 304 times

by **sjalbert** » Mon Feb 06, 2012 8:14 pm

Definately not the original serial number. The block looks like a 641087 casting.

by **HMVYoungster** » Mon Feb 06, 2012 9:08 pm

sjalbert wrote:Definately not the original serial number. The block looks like a 641087 casting.

Something special about that casting?

by **sjalbert** » Wed Feb 08, 2012 8:08 am

Nothing particularly special. It was introduced in 1946 and used in CJ's,d M38's and as replacement motors for WWII Jeeps. CJ blocks were stamped 2J (CJ2A's), 3J (CJ3A's). M38 blocks were stamped MC or RMC. Industrial blocks, replacement blocks and utility blocks had different prefixes. I've never seen "MMS" before, but I have seen California assigned VIN's that end with "CAL"

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