195-50-42111 Pivot Komatsu D375 bulldozer spare parts

The Komatsu D375 Pivot 195-50-42111 is the “rotation core” of the Komatsu D375 series bulldozer chassis system. Through precise positioning and hinge, it enables flexible rotation of chassis components, transmits power during equipment operation, and buffers impact loads under harsh working conditions such as mining and infrastructure construction. It is designed specifically for Komatsu D375 series bulldozers (including models D375A-2, D375A-5, D375A-6, D375A-8, etc.) and is a key consumable that ensures stable operation of chassis components, avoids equipment downtime due to pivot wear and deformation, and improves construction efficiency.
This product strictly adheres to Komatsu’s original manufacturing standards and is designed according to the chassis specifications of the Komatsu D375 series bulldozer (maximum power 474kW, operating weight 72 tons). It utilizes 42CrMo high-strength alloy steel and is equipped with IP67-rated dustproof and waterproof sealing components, possessing core advantages such as heavy-duty wear resistance, impact resistance, corrosion resistance, excellent sealing performance, and convenient installation. The product undergoes multiple processing steps including precision forging and carburizing and quenching. Its optimized structural design perfectly matches the chassis hinge holes, allowing for direct installation without modification. This effectively avoids pivot jamming, excessive wear, and other malfunctions, reducing equipment downtime losses, extending the overall service life of the chassis system, and lowering subsequent maintenance costs. It is widely used in mainstream Komatsu D375 bulldozer applications such as mining stripping, large-scale earthmoving, and infrastructure projects, adapting to various harsh operating environments. Balancing practicality and economy, it is a core component for Komatsu D375 bulldozer chassis maintenance.

Core technical parameters:

– Product Model: Komatsu D375 Pivot
-Part number 195-50-42111
– Product Type: Pivots, chassis hinged rotating components
– Core materials: The pivot is made of 42CrMo high-strength alloy steel; the seals are IP67 dustproof and waterproof sealing components.
– Material characteristics: Tensile strength ≥1100MPa, yield strength ≥900MPa; surface hardness HRC48-55, carburized layer depth 5-8mm, core hardness HRC28 or above, wear-resistant, durable, and not easily deformed or broken.
– Operating parameters: Rated load torque ≥6200 N·m, permissible working angle ≤35°, working temperature range -40℃~120℃, suitable for heavy loads, high and low temperature and other complex working conditions, sealing rating IP67, can effectively resist dust and mud intrusion, suitable for the heavy load requirements of the D375 series with a working weight of 72 tons.
– Machining process: Precision forging (forging ratio ≥ 4:1) + carburizing and quenching treatment. Each piece undergoes rigorous flaw detection and dimensional calibration, conforming to GB/T 3073-2008 Manufacturing Specification for Construction Machinery Pins (Pivots).
– Core dimensions: Pivot diameter 60mm, total length 420mm, can be finely adjusted according to original factory standards, perfectly matches chassis hinge hole positions, zero installation clearance, compatible with D375 series chassis structural dimensions.
– Compatible Models: Komatsu D375 series bulldozers (D375A-2, D375A-5, D375A-6, D375A-8, etc.), precisely matches the original chassis hinge points, can directly replace original parts, and is compatible with the 474kW power models in this series.

The Komatsu D375 Pivot 195-50-42111, with its Komatsu original equipment manufacturer (OEM) compatibility, superior heavy-duty wear resistance, and ability to withstand harsh working conditions, has become the preferred consumable for the maintenance of Komatsu D375 series bulldozer chassis. Whether for personal equipment maintenance, bulk corporate purchases, or engineering maintenance support, it can meet diverse needs. The product is easy to install, requiring no specialized or complex tools, and can directly replace OEM parts. It effectively solves common faults such as pivot wear, breakage, and jamming, reducing equipment downtime caused by the failure of hinged rotating parts, lowering maintenance costs, improving equipment operating efficiency, and helping mining and infrastructure projects reduce costs and increase efficiency.

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