OEM HITACHI EX120-5 CYLINDER HEAD BOLT SHORT M8 X 7.2 CM (OEM IS 8941569400) | Tonkee®

The M8 x 7.2 cm cylinder head bolt is a vital component in the engine assembly of the Hitachi EX120-5 excavator.

It is designed to secure the cylinder head to the engine block, forming a tight seal between these two critical components. This seal is essential for maintaining proper compression and preventing the leakage of combustion gases and engine coolant.

One of the key specifications of this bolt is its size. The M8 x 7.2 cm dimensions refer to its diameter (M8) and length (7.2 cm). This size is carefully chosen to provide the necessary clamping force without over-tightening or under-tightening the cylinder head, which could lead to engine damage or inefficiencies.

The OEM part number, 8941569400, signifies that this cylinder head bolt is a genuine Hitachi component. OEM (Original Equipment Manufacturer) parts are designed to meet the manufacturer's specifications and quality standards, ensuring compatibility and reliability with the Hitachi EX120-5 excavator. Choosing OEM parts like this bolt helps maintain the machine's performance and longevity.

In terms of material composition, cylinder head bolts are typically made from high-strength steel.

This ensures that they can withstand the extreme pressures and temperatures generated within the engine during combustion. The quality of the steel used in manufacturing is crucial to prevent issues such as bolt stretching, thread damage, or corrosion over time.

Proper torque specifications are essential when installing the M8 x 7.2 cm cylinder head bolt. Torque refers to the amount of rotational force applied during tightening. Using a torque wrench set to the manufacturer's recommended specifications ensures that the bolt is neither too loose nor too tight. Over-tightening can lead to thread damage or cylinder head warping, while under-tightening can result in leaks and decreased engine performance.

Regular maintenance and inspection of cylinder head bolts are essential to ensure their continued effectiveness. This includes checking for signs of wear, corrosion, or damage during routine service intervals. Any damaged or worn bolts should be replaced promptly to maintain the integrity of the engine.

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