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Denso Spark Plug Boot 671-4318Shop All DENSO
DENSO first time fit cop boot sets are identical in form, fit, color and performance to the factory-installed boots. Every part of each cop boot set construction meets or exceeds OE/DENSO standards.
- OE design ensures a tight boot seal that protects against moisture intrusion
- Engineered to the specifications used by the original vehicle manufacturer for an exact fit
- High temperature resistant material provides greater protection against thermal overload
- Stainless steel internal spring with resistor to suppress radio frequency interference and deliver maximum voltage to the spark