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A spark plug ignition coil plays a crucial role in the functioning of an internal combustion engine. It is responsible for generating the high voltage needed to create a spark within the combustion chamber, igniting the air-fuel mixture and initiating the power stroke. Without a properly functioning ignition coil, the engine would not be able to start or run efficiently.

Spring The spring supplements the tightening force (i.e., the lip radial load) to ensure enhanced sealing performance and tight contact between the shaft and the sealing edge.The spring also prevents the deterioration of main lip sealing performance caused by high heat or other such factors.