When purchasing construction machinery engine spare parts, many companies often fall into the trap of focusing solely on price and blindly pursuing original equipment. This can lead to mismatched and substandard parts, which in turn increase operational costs. Based on industry practice, the following four key purchasing points should be considered:

1. Prioritize matching the “equipment model + engine model” and avoid settling for “generic parts.”

The design parameters of engines (such as the number of cylinders, displacement, and power) vary significantly across different brands and models of construction machinery, resulting in corresponding spare part specifications that also differ. For example, the piston diameter and stroke of a six-cylinder engine in a 20-ton excavator of a certain brand are completely different from those of a four-cylinder engine in a 15-ton excavator of the same brand. Blindly using “generic pistons” can lead to poor cylinder sealing, reduced power, and even engine damage. Therefore, before purchasing, it’s important to accurately verify the equipment model (e.g., the excavator’s model number) and engine model (usually marked on the engine block) to ensure that the spare part’s specifications and dimensions are identical to the original manufacturer’s specifications.

2. Balance “quality and cost” and avoid blindly pursuing “original” or “low-cost aftermarket parts.”

Original parts: They offer consistent quality and strong compatibility, but are generally more expensive. They are suitable for applications requiring extremely high reliability (such as large-scale infrastructure projects and high-load, continuous operations).

Branded aftermarket parts: Produced by reputable third-party manufacturers, they meet industry standards and offer quality close to the original manufacturer’s. They are priced 20%-30% lower than the original manufacturer’s parts and are suitable for routine maintenance, offering a cost-effective option.

Low-cost, low-quality parts: They may be extremely cheap, but they are made of inferior materials and have low machining precision. They are prone to premature wear and failure, increasing equipment downtime and repair costs, and should be avoided.

It is recommended to choose aftermarket or original equipment parts from reputable brands based on the equipment’s usage and budget, rather than simply pursuing the lowest price. Additionally, you can verify spare part quality by checking the anti-counterfeiting label, certificate of conformity, and material inspection report.

3. Pay attention to spare part compatibility and avoid cross-brand mixing

Some companies, for convenience, mix spare parts from different brands. For example, using the oil filter from brand A engine with brand B engine may appear similar, but differences in port size and filtration accuracy may lead to oil leakage or incomplete filtration. Furthermore, fuel system spare parts (such as injectors and fuel pumps) require even higher compatibility. Even if spare parts from different brands appear similar, their internal structures and parameters may differ. Mixing them can lead to abnormal fuel injection pressure and cause engine failure. Therefore, when purchasing, choose spare parts that are compatible with the engine brand and model to avoid cross-brand mixing.

4. Choose a “regular supplier” to ensure after-sales service and traceability

The construction machinery engine spare parts market is mixed, with some small workshops flooding the market with “three-no” spare parts. Not only are their quality issues unreliable, but they also lack after-sales support. We recommend choosing a legitimate supplier with the following qualifications:

Brand-authorized qualifications (such as authorized distributors or authorized distributors);

Providing comprehensive after-sales support (such as returns and exchanges, warranty);

Supporting spare parts traceability (e.g., using codes to identify production batches and manufacturers).

Legal suppliers offer more reliable spare parts and provide timely technical support when issues arise, reducing operational risks.

If you need spare parts for engine spare parts, please contact us directly. We will provide you with high-quality and affordable accessories!

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