Spare part for Caterpillar: New Aftermarket Piston Seal (8T8251)
New Aftermarket Type 3
A two-piece seal, consisting of a piston ring and an expander, which prevents oil transfer between the rod end of the cylinder and the cap end, The piston seal is usually made of Teflon, with nylon available for pressure greater than 3000 psi (20,670 kpa), The various shaped expanders are nitrile,
Specifications:
PART NUMBER: 8T-8251
Seal Shape : Type 3
Bore Diameter : 5,00 in
Bore Diameter : 127,00 mm
Grove Diameter - B (0,003 in) : 4,23 in
Grove Diameter - B (0,003 in) : 107,32 mm
Groove Width - A (0,002 in) : 0,38 in
Groove Width - A (0,002 in) : 9,63 mm
Oversize Dim : 0,030