Is There a Quality Gap Between OEM and Aftermarket Parts?

[CameronRose]

Under normal circumstances, there is no quality gap between OEM and aftermarket parts. However, due to differences in actual production, the quality of aftermarket parts can vary significantly. For example, the compatibility of spark plugs may be lower. Below is a detailed introduction to automotive spark plugs: Overview: Automotive spark plugs, commonly known as spark plugs, function by discharging the high-voltage pulses sent from the ignition wires, breaking down the air between the two electrodes to generate an electric spark, which ignites the air-fuel mixture in the cylinder. They can generally be categorized into standard spark plugs and insulator-protruding spark plugs. Additional Information: The basic requirements for a high-performance engine include a stable, high-energy spark, a well-mixed air-fuel mixture, and a high compression ratio. The key component of a spark plug is the insulator. The insulator must possess excellent mechanical properties, high-voltage resistance, high-temperature impact resistance, and chemical corrosion resistance. Most standard spark plugs are made from alumina-based ceramics.