So I am in the process of rebuilding my OM617 that came from a 1985 300SD for my 1997 Jeep wrangler.

I got the engine out of the jeep tonight and pulled the cylinder head and found some numbers on the pistons.

Cylinder# Size in mm? ???
# 1 90.86 1
# 2 90.85 0
# 3 90.86 1
# 4 90.85 0
# 5 90.86 1

are these the sizes of the pistons?

I was looking and was thinking the OM617's used pistons in the 90.90 range as the std. size or is that bore size?

I want to order my liners and rings but want to make sure I am getting the correct size......

Thanks every one
Shawn