4282490 Original Excavator Hose Clamp for ZX160 ZX190 ZX240

Part number 4282490 is the official part number for Hitachi original excavator hose clamps (also known as pipe clamps or throat clamps). This component is a key fastener used in hydraulic, fuel, cooling and other pipeline systems to secure hose and joint connections. It is responsible for providing uniform radial clamping force, ensuring reliable sealing between the hose and the hard pipe joint, preventing high-pressure oil, fuel or coolant leakage, and resisting vibration and pressure impact. It is the basic safety component to ensure the normal operation of various excavator systems. As an original standard component, it is widely compatible with hydraulic oil pipes, fuel pipes, cooling water pipes and other pipeline connections of multiple Hitachi excavator models, such as ZX200, ZX210, ZX240, ZX250, ZX330 ZX series, as well as EX200, EX220, EX300 EX series excavators.
 

This original hose clamp is a high-performance circular fastening device. Its core function is to generate controllable and uniform circumferential clamping force through mechanical means (such as worm gear mechanism or bolt fastening), firmly clamping the hose onto the inverted teeth or protrusions of the joint, forming a reliable static or dynamic seal. As an original component, it is usually made of high-strength stainless steel (such as 304, 316) or high-quality galvanized steel, which has excellent corrosion resistance, vibration resistance, and fatigue resistance. Its structural design, such as all stainless steel strips, reinforced worm gears, and double wire bushings, ensures high clamping force and anti loosening characteristics. The working temperature range of the clamp is wide (usually -40 ° C to+120 ° C or above), and it can adapt to the high temperature environment of the excavator engine compartment and hydraulic system.

The maintenance core of this hose clamp lies in regularly checking its fastening status, integrity, and timely replacement. Regular inspection: It is recommended to visually inspect all clamps for rust, breakage, deformation, or obvious looseness every 250 working hours or every week, in conjunction with equipment inspections. For critical high-pressure hydraulic pipelines, the clamps can be manually checked for axial movement. Before installation, it is necessary to clean the mating surfaces of the hoses and fittings. When installing, ensure that the clamp is located behind the hose drum and centered, and then tighten it evenly to the specified torque. The clamps and surrounding areas should be kept clean in daily life to avoid prolonged exposure to oil and soil, which can accelerate corrosion. After any pipeline maintenance, it is necessary to recheck and ensure that the clamps are installed correctly and securely fastened.