8982455410 original 6WG1 ISUZU Engine Parts Bolt Connrod

The Hitachi original 6WG1 ISUZU engine connecting rod bolt (part number: 8982455410) is a key fastener in the crankshaft connecting rod mechanism of Isuzu 6WG1 series diesel engines, used to firmly connect the connecting rod big end to the crankshaft connecting rod journal. This original bolt is mainly suitable for Hitachi large construction machinery equipped with Isuzu 6WG1 engine, such as Hitachi ZX870-5G, ZX890H-5A and other large tonnage excavators, as well as some mining dump trucks, generator sets and other equipment.

The connecting rod bolt is the "core locking buckle" of engine power transmission. Its core function is to withstand the huge alternating tensile load, shear force, and pre tightening force in the engine working cycle, tightly fix the connecting rod big end bearing cover with the connecting rod body, ensure the precise synchronous operation of the piston connecting rod crankshaft mechanism under high-speed and high-pressure working conditions, and prevent destructive failures such as bearing wear, connecting rod ejection, and even "cylinder ramming" caused by loose connections. As an original component, it strictly follows the dual quality standards of Isuzu and Hitachi, usually made of high-strength alloy steel through quenching and tempering heat treatment and precision machining, with extremely high tensile strength, yield strength, and excellent fatigue resistance.

Regular inspection: It is recommended to replace the connecting rod bolts forcibly in conjunction with engine overhaul (usually every 6000-8000 working hours). In daily inspections, it is necessary to use magnifying glass, magnetic particle inspection or dye penetrant inspection methods to check whether there are cracks at the corners and thread roots of bolts, and measure their length. If the permanent elongation exceeds 2% of the original length, it must be scrapped. Standardized installation: Before installation, the threaded holes must be cleaned and the designated molybdenum disulfide lubricant or thread locking agent must be applied to the threaded area. It is necessary to use a calibrated torque wrench and strictly follow the torque and sequence specified in the maintenance manual (usually using a cross or staged tightening method, such as pre tightening to 50N · m and then tightening in 2-3 stages to the final torque) for operation. It is strictly prohibited to tighten based on feeling or excessive tightening.