9X-3977: Rectangular Seal
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    9X-3977: Rectangular Seal


    Rectangular Seal

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    Rectangular Seals are circular seals with a rectangular cross-section to prevent leakage and contamination. The edges may or may not be rounded according to the application needs.

    Cat® seals 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.

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

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

    Rectangular seals are used in a wide variety of sealing applications throughout Cat® machines and engines.

    • Inside Diameter (mm): 441
    • Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Material Description: NBR is a versatile material with good abrasion and cut resistance. It works well in Air, Engine Oil, Diesel Fuel, Coolant/Urea, Hydraulic Oil and Automatic Transmission Fluid applications. Do not use with Biodiesel.
    • Cross Section Width (in): 0.13
    • Cross Section Width (mm): 3.2
    • Radial Thickness (mm): 3
    • Axial Thickness (mm): 3
    • Material: NBR - Nitrile
    • Cross Section Height (mm): 3.2
    • Cross Section Height (in): 0.13
    • Inside Diameter (in): 17.38