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Piston Seals

Caterpillar is committed to providing our customers with the most reliable piston seals available for construction and mining equipment, diesel and natural gas engines, industrial gas turbines and locomotives. You can count on Cat® Parts to deliver durable and long-lasting seals that will prevent machine damage and assure optimal machine performance.
Over 200 Piston Seals of Various Bore Diameter, Grove Width and Shape
Cat® Two-Piece Piston Seals consist of a piston ring and an expander that 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.
Need advice on the best piston seal for your machine? Contact your nearby Cat Dealer for expert advice and 100% support.

Products: 218
Displaying products 1 - 12 of 218   Products Per Page
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6E-0307 Piston Seal
Piston Seals
Seal Shape: Type 3
Bore Diameter: 12.50 in
Bore Diameter: 317.50 mm
Grove Diameter - B (± 0.003 in): 11.38 in

6E-0253 Piston Seal
Piston Seals
Seal Shape: Type 1
Bore Diameter: 11.00 in
Bore Diameter: 279.32 mm
Grove Diameter - B (± 0.003 in): 9.88 in

093-1488 Piston Seal
Piston Seals
Seal Shape: Type 5
Bore Diameter: 3.54 in
Bore Diameter: 90.00 mm
Grove Diameter - B (± 0.003 in): 2.99 in

099-6973 Piston Seal
Piston Seals
Seal Shape: Type 4
Bore Diameter: 3.54 in
Bore Diameter: 90.00 mm
Grove Diameter - B (± 0.003 in): 2.95 in

099-6998 Piston Seal
Piston Seals
Seal Shape: Type 4
Bore Diameter: 3.15 in
Bore Diameter: 80.00 mm
Grove Diameter - B (± 0.003 in): 2.56 in

099-6922 Piston Seal
Piston Seals
Seal Shape: Type 4
Bore Diameter: 4.33 in
Bore Diameter: 110.00 mm
Grove Diameter - B (± 0.003 in): 3.74 in

108-0125 Piston Seal
Piston Seals
Seal Shape: Type 3
Bore Diameter: 11.00 in
Bore Diameter: 279.32 mm
Grove Diameter - B (± 0.003 in): 9.88 in

108-2869 Piston Seal
Piston Seals
Seal Shape: Type 3
Bore Diameter: 5.12 in
Bore Diameter: 130.00 mm
Grove Diameter - B (± 0.003 in): 4.56 in

108-2871 Piston Seal
Piston Seals
Seal Shape: Type 3
Bore Diameter: 5.91 in
Bore Diameter: 150.00 mm
Grove Diameter - B (± 0.003 in): 5.14 in

108-6198 Piston Seal
Piston Seals
Bore Diameter: 9.25 in
Bore Diameter: 234.95 mm
Grove Diameter - B (± 0.003 in): 9.26 in
Grove Diameter - B (± 0.003 in): 235.25 mm

108-6211 Piston Seal
Piston Seals
Seal Shape: Type 3
Bore Diameter: 13.00 in
Bore Diameter: 330.20 mm
Grove Diameter - B (± 0.003 in): 11.88 in

123-3129 Piston Seal
Piston Seals
Bore Diameter: 9.50 in
Bore Diameter: 241.30 mm
Grove Diameter - B (± 0.003 in): 8.49 in
Grove Diameter - B (± 0.003 in): 215.76 mm



Displaying products 1 - 12 of 218 Page  Go to previous page 1 - 19 Go to next page


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