CATERPILLAR part description

O-ring

UNITS:
  • US
  • METRIC
-->

Description:
O-Rings are mainly used in static application as both axial or radial seals to prevent leakage and contamination.

Attributes:
Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat® engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat® O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.

Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.

With over 2500 O-Rings in different sizes and materials, Cat® O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.

Cat® sealing system uses a robust design, testing, and validation process. Buy the latest Genuine Cat seal to protect your investment.

Applications:
O-Rings are used in a wide variety of applications throughout the entire Cat® product line.

*Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
  • Applications: Electrical system seals; High temperature air seals; High temperature static grease seals
  • Coating: None
  • Compatible With: Air; Diacetone alcohol; Ethylene glycol; Extreme high/low temperatures; High aniline point oil; Iso-butyl alcohol; Ozone & UV light; Polyglycol
  • Cross Section Diameter (in): 0.21
  • Inside Diameter (in): 34.25
  • Material: Silicone (70), VMQ - Silicone
  • Material Description: Silicone performs well in a wide range of temperatures -- from extremely low to moderately high -- and is excellent in Air applications. It is also compatible with Engine Oil. It has limited strength and abrasion/cut resistance, so it is better in low pressure applications. Silicone should not be used with Diesel Fuel, Coolant/Urea, Hydraulic Oil, Automatic Transmission Fluid or Biodiesel.
  • Not Compatible With: Acetone; Aromatic hydrocarbons; EP oil; Fuel oil; Gasoline; Ketones; Low aniline point oils; Petroleum oils; Steam & hot water
  • Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
  • Primary Sealing Material: Rubber
  • Seal/O-Ring Type: Standard
  • Temperature (°F): -50 - 300

CATERPILLAR 1438729 Cross Reference

We have 1 alternatives for the 1438729 by CATERPILLAR:

When it comes to construction vehicles and equipment, no other brand is more highly respected than Caterpillar®. For over 95 years, Caterpillar has been the leading manufacturer of construction and mining vehicles and components. Its catalog is among the largest in the world, with more than 1.4 million parts in stock ranging from excavator attachments to air-conditioning kits. Each component is designed, manufactured, and assembled according to strict specifications to ensure reliable performance in rugged operating conditions and long-lasting service life. For customers with tighter budgets, Caterpiller also offers remanufactured parts for the drivetrain, air suspension, hydraulics, and other major systems that have the same degree of quality but at a more affordable cost.

Don't know your part number?

Take a photo and we'll identify it!

Recommended Products

More from CATERPILLAR (Browse all)