TT PLUGS

The Denso 4707 is an Iridium TT spark plug designed for longevity and improved performance. It features a 0.4mm iridium center electrode and a 0.7mm needle tip ground electrode to minimize spark interference and maximize ignitability. This combination aims to provide better power, torque, and fuel economy.
The spark plug is constructed with Denso's patented iridium alloy for enhanced durability and a lifespan exceeding 100,000 miles. It also incorporates machine-rolled threads to prevent seizing during installation and removal, and a five-rib insulator to prevent flashover. A copper-glass seal ensures a gas-tight connection between the center electrode and insulator.