CAT Caterpillar 3P-0656 Genuine Original OEM Seal O-Ring (3P0656)
CAT Caterpillar 3P-0656 Genuine Original OEM Seal O-Ring (3P0656)

CAT Caterpillar 3P-0656 Genuine Original OEM Seal O-Ring (3P0656)

Regular price $29.95 $0.00 Unit price per


Condition: New old stock. Sold with our "no-hassle" 30-day return warranty.


  • Applications: High temperature applications requiring resistance to air, fuels, lubricants and hydraulic fluids
  • Main sealing material: Rubber
  • Seal or O-ring Type: Standard
  • Temperature (°F): -40 - 350
  • Compatible with: Diester based lubricants; Halogenated hydrocarbons (above 100 °C); very resistant to compression fit; petroleum fluids; phosphate ester based fluids; silicone fluids; some acids
  • Not compatible with: Amines; brake fluids; engine coolant; fire resistant fluids; ketones; steam; water
  • Dashboard Size (in): 334
  • Cross Section Diameter (in): 0.21
  • Internal Diameter (in): 2.6
  • Outside Diameter (in): 3.02
  • Material: FKM: Fluoroelastomer
  • Material Description: FKM provides superior performance in most applications including air, engine oil, diesel fuel, hydraulic oil, automatic transmission fluid, and biodiesel. Most FKM formulations should not be used with coolants or urea. FKM is effective at high temperatures and has good abrasion and cut resistance.
  • Hardness (Shore A): 75
  • SAE AS568 Dash Size: -334
  • Coating: None
  • Colour: Black


    Fits the following models. May fit other models not listed:
    • CONSTRUCTION TRUCK: 770 784B 784C 785 785B 785C 785D 789 789B 789C 793C 793F 793F AC 793F CMD 793F OEM 793F XQ 794 AC 795F AC 795F XQ 796 AC 797 797B 797F 8 AC 798 7973
    • CHALLENGER: MTC755 MTC765 MTC735 MTC745
    • SEA PRODUCTS: 3608 3612 3616 3618 C280-12 C280-16 C280-6 C280-8 C9 D379A D379B D398A D398B D399
    • ENGINE - INDUSTRIAL: G3606 G3606B G3608 G3612 G3616 G379 G379A G398 G399 3406B 3406C 3508 3612 C18 C280-16 C32 C9 C9.3 D379 D379B D398 D398B D399 C32 MARINE C12 C18 MARINE
    • ENGINE - GENERATOR SET: POWER SYS 3606 3608 3612 3616 C18 C280-12 C280-16 C32 C9.3 D379B D398B D399