195-30-62400 Control arm pin assembly Komatsu D375 bulldozer spare parts

The Komatsu D375 swing arm pin assembly 195-30-62400 is the “articulation core” of the Komatsu D375 series bulldozer chassis system. It achieves power transmission between the swing arm and the frame through precise articulation, and buffers the impact of operation. It is designed for harsh and heavy-duty working conditions such as mining and infrastructure construction. It is precisely matched with the entire range of Komatsu bulldozers, including the D375A-2, D375A-5, D375A-6, and D375A-8. It is a key consumable that ensures flexible swing arm operation, avoids equipment downtime due to pin wear and breakage, and improves construction efficiency.
This product strictly adheres to Komatsu’s original manufacturing standards and references the design specifications of the Komatsu D375 series bulldozer chassis. It utilizes 42CrMo high-strength alloy steel and is equipped with IP67-rated dustproof and waterproof sealing components, boasting 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/quenching. Its optimized structural design perfectly matches the hinge hole positions of the swing arm, allowing for direct installation without modification. This effectively avoids pin 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 Control Arm Pin Assembly
-Part number 195-30-62400
– Product Type: Swing Arm Pin Assembly, Hinge Connection Component
– Core materials: The pin 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 broken.
– Operating parameters: Rated load torque ≥ 5800 N·m, permissible working angle ≤ 30°, working temperature range -40℃~120℃, suitable for heavy loads, high and low temperature and other complex working conditions, sealing rating IP67, which can effectively resist dust and mud intrusion.
– 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.
– Core dimensions: Pin diameter 55mm, total length 380mm, can be finely adjusted according to original factory standards, perfectly matching the swing arm hinge hole position, zero installation clearance.
– Compatible Models: Komatsu D375 series bulldozers (D375A-2, D375A-5, D375A-6, D375A-8, etc.), precisely matches the original chassis swing arm hinge area, and can directly replace original parts.

The Komatsu D375 swing arm pin assembly 195-30-62400, 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 pin wear, breakage, and jamming, reducing equipment downtime caused by hinge component failure, lowering maintenance costs, improving equipment operating efficiency, and helping mining and infrastructure projects reduce costs and increase efficiency.

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