I found a 6.5 engine and can't identify any details about it. I have the casting number and a part number etched into the valve cover. The engine is not in my possession (yet) so I am basing this off pictures I got. It is not used and possibly new - within the past 1-2 years.

Valve Cover PN#
13564565

Laser engraved number on the right engine head (#8 side)
123303B

Sticker on the left side engine head (#7 side)
0MR (might be a zero or letter O)
PT# 12560175
with a barcode

Any recognization part numbers that could give me an idea about it? I know it is an NA engine

Thanks

You want to check the block for numbers, the other part number may be incorrect. I always go for block casting numbers over any sticker due to human error...just my personal opinion.