NGK Nissan D21 1989-1986 Spark Plug Wire Set

The variable pitch resistor cables in this NGK wire set are designed to give you consistent resistance, which is key for getting the best electrical conductivity. This means your engine gets the spark it needs, when it needs it, for smooth running. The outer jacket is made from EPDM and silicone, materials chosen for their ability to handle high voltage without breaking down, keeping those currents contained. Inside, the insulation also plays a big part in managing that high voltage.

NGK uses a magnetic core in these cables that helps suppress electrical interference across a wide range of frequencies. This is important for reducing EMI/RFI noise, which can affect your radio or other electronics. The spark plug and distributor boots are made to meet or exceed original equipment specs, ensuring they fit right and hold up over time. They're even sealed to the cable with silicone to keep moisture out, and the stainless steel terminals use multiple crimps for a strong connection that won't pull loose. The locking clip on the spark plug end bites down securely for a reliable connection.