NGK Mazda RX-7 1991-1986 Spark Plug Wire Set

The variable pitch resistor cables in this NGK spark plug wire set are designed to offer uniform resistance, which is key for maintaining outstanding electrical conductivity. This is especially important for your 1986-1991 Mazda RX-7, where consistent spark delivery directly impacts engine performance and efficiency. The outer EPDM/silicone jacket and inner insulation are built to handle high voltage currents, ensuring excellent dielectric strength to keep that power where it needs to be.

NGK uses a variable pitch magnetic core in these cables, which helps produce the necessary impedance to suppress radio and electrical interference across the entire frequency range. This means you get exceptional EMI/RFI noise suppression, leading to a cleaner signal and smoother engine operation. The spark plug and distributor boots meet or exceed OE specifications, so you can expect a high-quality fit, reliable performance, and lasting durability. For a watertight seal, the spark plug boots are secured with a silicone sealer, and the stainless steel terminals use multiple serrated crimps for strong terminal retention. A locking C-shaped spring clip with corrosion-resistant plating makes sure the connection to the spark plug terminal is secure and positive.