CATERPILLAR 109-8058 Retainer-Bearing 1098058

Caterpillar 109-8058 Retainer Bearing – OEM-Grade Durability for Heavy Equipment

The Caterpillar 109-8058 Retainer Bearing is a critical drivetrain component engineered for high-performance applications across a wide range of Caterpillar machinery, including TRE-3516B Industrial Engines, 8NK-325 and 8NK-325-A L Excavators, as well as numerous off-highway truck models such as 4AR-793C, 5RK-784B, and 6HK-785B. Manufactured to OEM specifications, this retainer bearing is designed to withstand extreme load conditions and harsh operating environments typical of heavy-duty construction and mining equipment. Precision metallurgy and robust design ensure optimal fitment and longevity, reducing downtime and maintenance costs.

Constructed from high-grade alloy steel with exacting dimensional tolerances, the 109-8058 bearing retainer supports smooth rotational movement and maintains alignment under heavy radial and axial loads. Its superior wear resistance and corrosion protection enhance operational reliability in demanding applications like wheel-type loaders (3TZ-994D, 442-994F) and petroleum product machinery (BZ3-3512E). This part’s compatibility with a broad spectrum of Caterpillar models underscores its versatility and essential role in drivetrain integrity, ensuring consistent performance and extended service life.

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