6H-3977: O-ring
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    6H-3977: O-ring

    Part Number: 6H-3977
    Brand: Cat
    Retrieving Price.....


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

    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.

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

    Warning: This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
    • US
    • Metric
    • Coating: None
    • Cross Section Diameter (in): 0.14
    • Cross Section Diameter (mm): 3.5
    • Dash Size (in): 233
    • Inside Diameter (in): 2.86
    • Inside Diameter (mm): 73
    • Material: NBR - Nitrile, NBR (75)
    • 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.
    • Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.
    • Primary Sealing Material: Rubber
    • Seal Inside Diameter (mm): 72.62
    • Seal/O-Ring Type: Standard

    572R, 587T, 561N, 561B, 578, 594H, PL87, 572G, 561M, 587R, PL83, 583H, 572R II 594, 583R

    wheel tractor-scraper
    657E, 627H, 631G, 627B, 627, 651B, 631E, 623F, 637G, 627E, 641, 631C, 623, 621H, 623G, 637E, 651, 623B, 621R, 621, 657, 666, 623E, 623H, 621E, 637D, 621B, 657B, 641B, 621K OEM 627G, 621K, 633C, 666B, 623K LRC 637, 651E, 639D, 633D, 621G, 631D, 633E II 623K, 627K LRC 660B, 657G, 621F

    paving compactor
    CS-44B CS44B, CP-44B CP44B, CS-323 CCS7, CP-323, CB-534C

    engine - generator set
    3406, 3304B, 3408B, 3408C, 3406B, 3408, 3304, 3306

    motor grader
    120B, 120, 140, 14E, 12F, 12E, 140B

    wheel-type loader
    994D, 980F, 907M, 966C, 980B, 980G II 980C, 907H2, 994F, 988, 950, 992B, 994, 906M, 988B, 992, 907K, 980G, 980, 906H, 906K, 992C, 994H, 902, 907H, 906H2

    engine - industrial
    3408, 3304, 3406B, 3306, D398B, G3306, D342C, D379 G399, D342, D379B, 3406, D353E, G342C, D348, G379 D353D G353D, D333C, D346, D330C, D398 G379A, G343, D353C, D399, G333C, D349, G3304, 3408B, D343 G398

    wheel-type skidder

    off-highway truck
    776B, 785C, 776D, 769, 768B, 772B, 784B, 785D, 785, 793C, 773, 777D, 794 AC 773B, 769B, 789, 776, 777C, 785B, 770, 772, 784C, 777, 777B, 789C, 777E, 776C, 793D, 789B

    material handler
    MH3037, MH3295

    oem solutions


    track-type tractor
    8SU D4H, D6R, D7H, 4S D5B, D6R II D7F, 6A D6H, 182 D9G, D7R, 163 D5H, 183B 6S 9S 9 D6N, 6 57 D5N D6H XR 56H D7R II 10 D5R LGP D6M 8S 8 D6N XL D6D, D6H XL 9SU 7S D8N, 59 D9R, D5M 57H D9L, 193B 173B 9C 7S LGP 153 4P 59L 7SU D8H, D7G, D6R III D7R XR 192 D10N, D6R STD 4 D6H II 55, 6SU 5S D5R2 10SU D9H, 4A 7 9U 56 59N D5R XL D6N LGP 54 8A 10U D9E, D8L, 7U D9N, 58 8U 5A 7A 193 D6N OEM 5 D4H XL 5P D4H III D5H XL D10R, D7R LGP 165 D6R XL 58L

    wheel dozer
    824, 824B, 814, 834G, 824S 834H, 834B, 834S 834U 834, 824C

    track-type loader
    951B, 955L, 977L, 951, 983, 941B, 977K, 977D, 977 951C, 955 941, 955K, 977A 977H, 983B

    track-type skidder
    54H D4HTSK II 527 D5HTSK II D4HTSK III 517 4P

    245B, 390F L 349F LXE 352F XE VG 245, 374F L 374F

    earthmoving compactor
    815, 816, 836, 826B, 825B, 836G, 836H, 825