Description:
The Denso Iridium Power 5304 Spark Plug is engineered for strong ignition performance using a 0.4 mm iridium-tipped fine-wire center electrode that helps reduce required firing voltage and improve firing consistency. It features a taper cut U-Groove nickel ground electrode to increase ignitability and reduce quenching for efficient combustion.
Designed for dependable service and installation, the plug uses machine-rolled threads to help prevent seizing or cross-threading, and it is 100% pre-fired for quality assurance. A purified alumina powder insulator supports strength and thermal conductivity, while a five-rib insulator design helps prevent flashover. The copper-glass seal bonds the center electrode and insulator for a gas-tight seal. This plug is a resistor-type design (5k ohm) with a heat range of 20, and it is rated for 30k miles longevity with a 12-month warranty.
Features:
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Iridium fine-wire center electrode (0.4 mm) to reduce required voltage and improve firing performance
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Center electrode material: Iridium
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Center electrode type: Fine wire
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Center electrode projection: Projected
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Ground electrode material: Nickel
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Ground electrode type: U-Groove
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Ground electrode shape: Taper cut
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Ground electrode quantity: 1
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Resistor: Yes (5k ohm)
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Heat range: 20
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Machine-rolled threads help prevent seizing or cross-threading
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Purified alumina powder insulator for strength and thermal conductivity
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Five-rib insulator helps prevent flashover
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Copper-glass seal provides a gas-tight bond between center electrode and insulator
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100% pre-fired for quality assurance
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Warranty: 12 months
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Longevity: 30k miles
Specifications:
