Cummins 4BT & Diesel Conversions Forums banner

Piston identification

258 Views 1 Reply 2 Participants Last post by  Blackduck596
Can anyone tell me what these numbers mean on top of my pistons?
Fluid Gas Circle Metal Auto part
See less See more
1 - 1 of 2 Posts
Believe the top 4 numbers are the last numbers of the part number.
1 - 1 of 2 Posts