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Caterpillar Bulldozer Segment  D7R,D8N(5T)

Bulldozer Parts

Caterpillar Bulldozer Segment D7R,D8N(5T)

TACK is an engineering machinery factory with over 20 years of experience. Our main products are undercarriage parts for bulldozers, excavators, and agricultural harvesters etc. Our products, including track rollers , carrier rollers , idlers, sprockets, and track chains, have been highly praised overseas. We support machinery brands such as CATERPILLER, LIEBHERR, KOMATSU, JOHN DEERE, CASE, KOBELCO, SUMITOMO, VOLVO, HITACHI, HYUNDAI, etc. We are a direct manufacturing factory with quality assurance, fast delivery, a wide range of product types, and the convenience of one-stop shopping. We have dedicated designers who can provide precise and personalized services, quickly develop samples according to customer request , and our factory processes are organized and flexible to adjust production as customers required.

Acceptance: OEM/ODM, Trade, Wholesale, Regional Agency. 

Payment: T/T, L/C, X-transfer


    Sprockets are metal cogwheels that consist of a metal inner ring with bolt holes or a compression hub and a gear ring in one unit. Sprockets can be screwed on directly, or pressed onto the machine’s drive hub, and they are usually used for excavators.
    Just as sprockets, segments also consist of a metal inner ring with bolt holes and a gear ring. Unlike sprockets, segment groups exist from individual segments which make up the sprocket for the undercarriage of bulldozers. This means that the segments can be exchanged without dismantling the track link.



    Original Code

    114-6413, 162-9534, 173-0947, 173-0948, 314-5462, 6T3197, 6Y2354,7T9773, S01082K1M05, CR4477, CR4539, CR5049A


     Caterpillar segment D7R,D8N

    Model No. D7R, D8N(5T)
    OEM  NO. 7T9773
    Material 50Mn
    Technique Forging
    Weight 14KGS
    Surface Hardness


    Welding Operation

    by ARC CO² welding
    Machining Operation CNC machine