NGK SB05E Resistor Spark Plug Cap black 8374

The NGK SB05E Resistor Spark Plug Cap in Black (8374) combines rugged construction with reliable electrical performance. A built-in resistor element sits between the plug terminal and high-tension wire, delivering steady resistance to minimize misfires and spark scatter. The design uses superlative ceramic materials that resist deterioration and keep resistance variations minimal even under overload, ensuring consistent ignition performance. The plug connector is crafted from sturdy phenolic resin, delivering excellent heat tolerance, while a tough rubber body provides superior vibration resistance. Special rubber liners at both ends prevent moisture ingress and electrical leakage for dependable starts in challenging conditions. This cap is ideal for modern ignition systems requiring durable, high-temp resistance with long-lasting sealing, making it a trustworthy choice for riders and hobbyists alike who demand reliability and performance from their spark plug connections.