Cat c15 IVA

[greengoat01]

(03-19-2025 )davidjrawls Wrote:  Needing the orings for the pistons on the Iva housings for an c15 acert Iva housing. Goes in the groves where I’m pointing in the picture. Cat says I have to buy the whole housings. Hopping someone has ran into this already.

This is a couple months old, do you need the o-ring part numbers?

Cat O-Ring numbers (good numbers)
2= 221-9937
2= 221-9941

Cat back up ring numbers (N/A)
2= 221-9942 dimensions= OD 23.78mm x ID 21.08mm x 1.24mm thick
2= 221-9940 dimensions= OD 25.36mm x ID 22.68mm x 1.24mm thick