Hey guys I have found the build date on my 2013 JKU Rubi but can not read it. I am hoping I have a new enough build date to avoid the ticking problem in some of the Penstar motors. Also is there a date where it is known that the problem was corrected after?
Heres a photo. Thanks for your help

here it is rotated

 

May 4th 12'??

 

2012 05 15?

 

you know its in the door jam too, on a printed sticker, much easier to read.

 

That one doesn't show engine build date, which is what the OP is after.

 

That looks like May 2012 to me. I just bought my 2013 JKUR last month. The build date is also Oct 2012. So am I good from the engine problem?

 

This is the one I agree with.

 

On the drivers side head just below the valve cover in the middle of the head are 3 rows of numbers. The top row gives the built date of the head, anything above 2062 is the new head. 2062 means 206 day of 2012.

 

The door decal has a MDH line ( month, day, hour) of vehicle assembly. I wouldn't suppose the engine date would be too far off as major stockpiling of components as was practiced in the past has been replaced by just-in-time supply systems.

 

I was told that is just the date that the block was inspected, mine is 06062012. my build date is 083012 and my heads both left and right are born on the 231st day of 2012 and rumor has it heads need to be built on or after the 206th day of 2012 to be the newer style heads.