4.0 SOHC fuel injector o-ring question

[Drewmcg]

RockAuto sells Mahle/Victor Reinz "original" o-rings for the 4.0 SOHC here: https://www.rockauto.com/en/moreinfo.php?pk=2652790&cc=1377660&jsn=323&jsn=323&jsn=323

Question: the photo clearly seems to show different thicknesses for top and bottom o-rings. Other options (e.g., Fel-Pro "improved design") seem clearly to show uniform thickness. Which is correct?

 

[98EdBomber]

I know this is old but i just bought the same set and am in the middle of this repair. But did you ever figure out which ones go where? the sizes are so close i cant tell.

 

[Drewmcg]

I know this is old but i just bought the same set and am in the middle of this repair. But did you ever figure out which ones go where? the sizes are so close i cant tell.

I don't remember. I probably saved an old injector as a spare, but it's not handy to examine it until tomorrow. Let me know if you'd like me to check then.

 

[98EdBomber]

I don't remember. I probably saved an old injector as a spare, but it's not handy to examine it until tomorrow. Let me know if you'd like me to check then.

Ok cool if you have the time then Id sure like to figure this out. I noticed the tan colored one seems too large (I.D.). I cant find any posts on whether the two are supposed to be different sizes or not. The old ones look the same size to me.

 

[martin_95037]

Ask the manufacture what the difference is.