8976163580 Excavator 6HK1 Diesel Engine Parts Connecting Rod Metal Set

The Isuzu original 6HK1 engine connecting rod metal kit (part number: 8976163580, with common part numbers including 8-97616358-0, 897616-3580, etc.) is a standard set of connecting rod bearings (commonly known as "small tiles") designed specifically for Isuzu 4HK1 and 6HK1 series diesel engines. This kit is mainly used for engine overhaul or connecting rod bearing replacement, and is core compatible with Hitachi ZX series excavators equipped with the above-mentioned engines. Specific models include ZX200-3, ZX210-3, ZX225, ZX330-3, etc.

The connecting rod metal kit is the core friction pair component of the engine crank connecting rod mechanism. Each set usually includes 6 or 12 connecting rod bearing shells, which are used to be installed between the connecting rod big end and the crankshaft connecting rod journal. Its core function is to provide precise support and lubrication for the crankshaft connecting rod journal under high-speed rotation and huge impact loads, converting the reciprocating motion of the piston into the rotational motion of the crankshaft, while minimizing friction and wear to the greatest extent possible. The bearing shell adopts a multi-layer composite structure: the steel back provides strength support; The middle layer is a high load-bearing wear-resistant alloy layer (such as copper lead alloy, aluminum tin alloy, or ternary electroplating layer), which has good fatigue resistance, embeddedness, and compliance; The surface is often covered with an extremely thin anti friction coating.

The maintenance core of this connecting rod tile lies in regular monitoring, preventive replacement, and standardized installation. Regular monitoring: It is recommended to listen for a crisp "dada" knocking sound in the middle and lower parts of the engine every 500 working hours or every time the oil is changed (especially during rapid acceleration or high load), which is a typical sign of excessive clearance between connecting rod bearings; Simultaneously monitor the oil pressure. If the oil pressure is too low during idle, it may also indicate bearing wear. Timing of replacement: The connecting rod bearing belongs to the core component of major repairs, and usually must be replaced as a set when the engine is overhauled, the connecting rod is disassembled, or abnormal wear is detected. It is strictly prohibited to replace a single piece or only one side separately.