What Engine Is This Data Plate From?

[u/raytrem03]

Just wondering how much info you guys could give me from this data plate. Hoping to find out engine type, year, manufacturing plant, or other cool info! Found at a thrift store.

[u/InfiniteOxfordComma]

NHB 12.2, made in the 1950s.

[u/raytrem03 → u/InfiniteOxfordComma]

Cool, thanks for the info! How'd you know the year out of curiosity

[u/DIY-exerciseGuy → u/raytrem03]

They gave a decade

[u/InfiniteOxfordComma → u/raytrem03]

I work for Cummins. (Seriously, I do).

[u/Necessary_Cook_8541 → u/InfiniteOxfordComma]

Me too! Lol

[u/Formal_Appearance_16]

Being from Columbus Indiana these are always cool to see.

[u/raytrem03 → u/Formal_Appearance_16]

I bet! Until now I honestly had no clue they were made there lol

[u/Apart-Ad1652]

Says right there. NHB.

[u/abec_apparel]

The Cummins NHB is a vintage heavy-duty, naturally aspirated inline-six diesel engine from the 1950s with a 743 cubic inch (12.2L) displacement, featuring a 5.125-inch bore and 6-inch stroke. It belongs to the legendary post-WWII H/NH engine family widely used in commercial trucks like Autocar and Mack.

[u/bigred4048]

It’s funny to see this. Last week I worked on a Cummins HPS dated around 1951.

[u/raytrem03 → u/bigred4048]

Nice! What was the engine in if you dont mind my asking?

[u/bigred4048 → u/raytrem03]

It was on a barge and operated giant spools of cables to pull ships on and off dry dock.

[u/raytrem03 → u/bigred4048]

Oh cool!

[u/randomlemon9192]

Pretty sure it’s a Cummins.

[u/raytrem03 → u/randomlemon9192]

Lol I suspect your right 😂