6J-1972 76 mm Bore Two-Piece Seal
Cat® Plastic Bonded Rubber Two-Piece Seal for Cylinders
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
| Outside Diameter | 76.58 mm (3 in) |
|---|---|
| Groove Diameter – B (+/- 0.003 in) | 62.48 in |
| Groove Width – A (+/- 0.002 in) | 4.88 in |
| Groove Diameter – B (+/- 0.0762 mm) | 2.46 mm |
| Seal Shape | Type 1 |
| Hole Diameter | 76.20 mm (3.00 in) |
| Groove Width – A (+/- 0.0508 mm) | 0.19 mm |
Compatible Equipment
- Motor Graders: 120, 14, 16, 140K, 12K, 14M, 18, 160K, 16M, 120H, 12H, 140G, 140H, 16M3
- Cold Planers: TH360B, TH417D
- Dozers: D1, D3K2 LGP, D4G, D3G, D5G, D5K2 XL, D5K XL, D5K LGP
- Mini Excavators: 303.5E, 303.5D, 305.5E, 303.5C
- Excavators: 305E2 CR, 416F2, 637G, 637E, 637K, 416E, 657G, 305C CR, 303, 303.5E2 CR, 303C CR
- Wheel Loaders: R1300G, 950, 910, 906K
- Off-Highway Trucks: 770G, 772G, 740B, 740, 725, 771D, 730, 735
Additional information
| Machine Model | 120, 120H, 12H, 12K, 14, 140G, 140H, 140K, 14M, 16, 160K, 16M, 16M3, 18, 303, 303.5C, 303.5D, 303.5E, 303.5E2 CR, 303C CR, 305.5E, 305C CR, 305E2 CR, 416E, 416F2, 637E, 637G, 637K, 657G, 725, 730, 735, 740, 740B, 770G, 771D, 772G, 906K, 910, 950, D1, D3G, D3K2 LGP, D4G, D5G, D5K LGP, D5K XL, D5K2 XL, R1300G, TH360B, TH417D |
|---|---|
| Equipment Type | Excavators, Mini Excavators, Wheel Loaders, Dozers, Motor Graders, Off-Highway Trucks, Cold Planers |
| Part Source | Genuine OEM |








