NGK Spark Plug Wire Set 51021 Ultra-Low Resistance Silicone Jacket

NGK Spark Plug Wire Set 51021 — Ultra-Low Resistance Silicone Jacket NGK 51021 spark plug wire set delivers reliable ignition performance and long-lasting durability for modern engines. Engineered with an ultra-low resistance mag core and premium materials, this set improves spark energy while suppressing electromagnetic interference. Key Features Ultra-low resistance mag core: Stainless steel winding over a ferrite magnetic core increases spark power and stability. High-temp silicone jacket: Premium silicone outer layer resists heat and ozone for extended service life. Superior insulation: Inner EPDM/silicone insulation provides excellent dielectric strength and containment of high voltage. EMI/RFI suppression: Ferrite core design reduces electrical noise that can affect vehicle electronics. OE or better boots: Spark plug and distributor boots meet or exceed original equipment fit and durability. Watertight seal: Boots are glued to cables with silicone sealer to prevent moisture intrusion. Secure terminals: Stainless steel terminals with serrated crimps ensure high retention strength; locking C-shaped spring clips are corrosion-resistant for positive connections. Benefits Expect improved ignition consistency, reduced misfires, and enhanced electrical noise suppression. NGK's meticulous construction provides a dependable, long-term solution for OEM-level performance and durability.