What is the difference between Bosch imported spark plugs and domestic ones?
2 Answers
Bosch imported spark plugs and domestic ones differ in the following aspects: Difference in manufacturers: The original imported Bosch spark plugs are authentically produced in the original German factory, while the genuine ones are made by authorized domestic manufacturers under the guidance of German technicians. Difference in working voltage: The voltage standards differ between domestic and foreign countries, so imported Bosch spark plugs cannot be used without a transformer. Difference in machine performance: Genuine products are far inferior to imported Bosch in terms of performance. For example, the maximum thermal efficiency of genuine wall-hung boilers can reach 88%, while imported ones generally exceed 88%, with the highest reaching 95%.
When it comes to the difference between Bosch's imported and domestically produced spark plugs, I think the biggest distinctions lie in the materials and manufacturing processes. The imported versions usually employ more advanced electrode materials, such as platinum or iridium alloys, which are wear-resistant, high-temperature tolerant, and offer higher ignition efficiency with a longer lifespan. On the other hand, the domestic ones, while still meeting Bosch standards, tend to focus more on cost control in materials, possibly using nickel alloys instead, which may lead to carbon buildup or ignition issues over prolonged use. In terms of craftsmanship, the imported production lines are more precise with stricter quality control. For example, the German-origin insulators are treated more finely to reduce the risk of electrical leakage. However, this doesn’t mean domestic spark plugs are inferior. For regular household vehicles, domestically produced spark plugs are entirely sufficient and offer good value for money. The key is to inspect and replace them regularly—don’t wait until the engine starts shaking. The quality of spark plugs directly affects fuel combustion, and using inferior products may increase fuel consumption. My advice is to choose based on your engine’s requirements rather than blindly opting for imported ones.
