121-4345 11.23 mm OD O-Ring

Cat® water line O-rings prevent leakage and ensure a secure, durable connection

SKU: 121-4345 Category:

Description

OD-controlled O-rings are used in sealing applications where the seal outside diameter is the critical dimension.

Features

Cat® O-rings are made from materials compatible with the fluids, temperatures and pressures in Cat engines and machines. These materials resist wear and extrusion, giving the seals excellent compression set resistance. In addition, some Cat O-rings are coated with PTFE to minimize seal twisting and cutting during installation.

Our O-rings are dimensioned to strictly follow tight tolerances, ensuring they are properly seated in the seal groove with the right seal compression.

With more than 2500 different sizes and materials of O-rings, Cat O-rings are the best solution for the O-ring needs of your Cat and other mobile equipment.

Cat sealing systems prevent leaks and contamination of more expensive parts. Genuine Cat® seals protect your investment.

Applications

OD-controlled O-rings are used in many static and dynamic joints in Cat machines and engines, including ORFS (O-Ring Face Seal) and STOR (Straight Thread O-Ring) couplings and adapters.

Specifications

Dash Size011 in
Material Hardness70A
PolymerEPDM (Ethylene-propylene diene)
O-Ring TypeO-Ring Face Seal (ORFS)
Fitting Size9/16-18 in
Cross-Section Diameter1.78 mm (0.07 in)
MaterialPolytetrafluoroethylene (PTFE) Plastic
Inside Diameter7.67 mm (0.302 in)

Compatible Equipment

  • Generator Sets: G3516, 3516C, C7.1
  • Track Loaders: 993, 826K, 995, 982, 992, 990K, 834H, 994K
  • Compactors: 824K, 825K, 834K, C13B
  • Wheel Excavators: MD6250, M315, M320
  • Engines: C32, C7, C15, C18
  • Dozers: D11, D6T, D6T LGP, D7E, D7, D10, D11T
  • Excavators: 349F L, 3516E, 329E, 336E L, 336F L, 329E L, 336E, 335F LCR, 336E LH, 336E LN, 336F LN, 352, 355, 3508B, 349, 336E H, 637K, 349E L, 621K, 621H, 349E, 352F, 349E L VG
  • Wheel Loaders: 836, 988K, 834, 980, 990H, 966K, 986H, 988H, R1700K
  • Off-Highway Trucks: 777, 735, 730, 725
  • Asphalt Pavers: AP300F, AP355F

Additional information

Machine Model

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Equipment Type

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Part Source

Genuine OEM