How to choose the right original or aftermarket parts for excavators

2026-08-25 15:44:26

　　Excavator accessories are divided into original parts,branded aftermarket parts,and inferior aftermarket parts,each with its own advantages and disadvantages.When selecting,one should not blindly pursue original parts,nor blindly choose low-priced aftermarket parts.It is necessary to comprehensively weigh the equipment working conditions,accessory location,and budget,taking into account reliability and cost.

　　The original parts are produced by the equipment host factory or supporting factory,with dimensional tolerances and material strength fully manufactured according to equipment standards.They have high adaptability,good impact and wear resistance,and low probability of failure.The disadvantage is that the price is relatively high and the supply cycle is sometimes longer.Suitable for engineering equipment with high frequency and heavy load,long-term rush to meet deadlines,especially for core load-bearing components such as Hydraulic Pumps,distribution valves,engine crankshafts,connecting rods,etc.Once these accessories are damaged,they can cause chain failures and result in significant losses.It is safer to prioritize using original parts.

　　The sub factory parts market is highly differentiated,with legitimate brand sub factory parts replicated and processed according to the original factory parameters,ensuring stable quality and significantly lower prices than the original ones;However,inferior sub factory parts are secretly reduced in materials,with tolerances that do not meet standards.They look similar in appearance but have poor wear resistance and pressure resistance,making them only suitable for temporary emergencies.Accessory parts are more suitable for old excavators,low-intensity operations,and non critical accessories such as cab decorative covers,protective plates,some oil pipes,and shell shields.Even if damaged,they will not cause major malfunctions.

　　When selecting,first distinguish the importance level of accessories.Core hydraulic components and engine internal parts are directly related to the safety of the entire machine,and if conditions permit,priority should be given to original packaging;If the budget is tight,you can choose reputable brand sub factories and resolutely avoid low-priced and low-quality sub factories.Chassis vulnerable parts,such as track shoes and supporting wheels,should be selected from original or high-quality brand sub factories for heavy-duty conditions;Short term transitional use can choose ordinary auxiliary factories.It is not recommended to choose cheap and inferior secondary factories for seals and filter cartridges.Poor quality filter cartridges have poor filtering effects,and impurities entering the system will wear out expensive hydraulic components,which is not worth the loss.

　　We also need to consider the value of the excavator itself.For new or high-value second-hand phones,priority should be given to original or high-quality branded parts to protect the residual value of the equipment;For old excavators that are close to being scrapped,in pursuit of cost-effectiveness,reliable auxiliary parts can be selected without the need to invest in high original parts costs.At the same time,be wary of merchants impersonating the original manufacturer for sale.When purchasing,verify the part number,check the engraving and packaging,and keep the purchase voucher.

　　Regardless of which type of accessory is selected,the size of the old parts should be compared upon arrival to confirm compatibility before installation.Occasionally,there may be tolerance deviations in the auxiliary components.After installation,conduct a trial machine inspection.

　　In summary,the advantage of original parts lies in their stability and reliability,while the advantage of aftermarket parts lies in their cost-effectiveness.Priority given to the original quality of core key components;Non critical appearance and accessory parts can be selected from reliable secondary factories to avoid inferior and low-priced products.Reasonably choose between equipment operating conditions and budget,which not only controls maintenance costs but also avoids downtime losses caused by component damage.