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Guaranteed to Fit
Your complete satisfaction is our #1 priority, so you can be confident the products listed below are GUARANTEED to fit your vehicle! But if for any reason an item just doesn't measure up, simply return it to us for a full refund or exchange within 90 days of receipt...no questions asked.
Denso Resistor U-Groove Spark Plug eliminates annoying buzzing/static in your radio/electronic gear!
Patented U-Groove technology creates a larger and hotter flash front for better performance
Virtually eliminates fouling and erratic starts caused by poor fuel mixes
Delivers better fuel efficiency and improved throttle response
Denso Resistor U-Groove Spark Plug is a perfect OE replacement plug that improves ignitability and increases fuel efficiency. Why is the Denso Resistor Spark Plug better? First, patented U-groove ground electrode develops a larger and hotter flash front for more complete combustion. Threads are machine-rolled for trouble-free installation and removal. Copper-glass seal bonds center electrode and insulator together for a gas-tight seal for better heat maintenance. Five-rib design prevents flashover and decreases voltage loss. And the purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity that can stand up to extreme stress. All in all, simply a better spark plug!
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The following products fit your 1958-1965 Dodge Custom