kshansen
Senior Member
- Joined
- Mar 11, 2012
- Messages
- 11,173
- Location
- Central New York, USA
- Occupation
- Retired Mechanic in Stone Quarry
Yes, I forgot that you had posted that picture!numbers:
The part numbers I posted are the correct ones for that 7N1515 according to SIS as of today.
The original ring group was a 7S9404 but back in 1983 they changed the top ring material and the new ring group is the 9S3068 number.
There appear to have been several other versions of the piston part number but the 8N3180 is the latest that they list. They do show the 2506563 as the Yellowmark part number which I guess is a different form of the "Cat Classic" line of parts.
Just for fun I checked Milton's price on the two piston numbers:
8N3180---$198.94
2506563---$78.45
Or at least that is the price I'm seeing on SIS