8T-1788 Piston Seal
Type 3
Description
A two-piece seal consisting of a piston ring and an expander, used to prevent oil from flowing between the rod end and the cover end of the cylinder. The piston seal ring is usually made of Teflon, and nylon material can be selected when the pressure is greater than 3000 psi (20670 kPa). Expanders of various shapes are made of nitrile rubber.
Specifications
| Groove Diameter – B (+/- 0.0762 mm) | 135.76 mm |
|---|---|
| Groove Width – A (+/- 0.0508 mm) | 15.98 mm |
| Groove Width – A (+/- 0.002 in) | 0.63 in |
| Groove Diameter – B (+/- 0.003 in) | 5.34 in |
| Hole Diameter | 158.75 mm (6.25 in) |
| Seal Shape | Type 3 |
Compatible Equipment
- Dozers: D10N, D10R, D10T
- Wheel Loaders: 972M, 966M





