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The NGK 3403 G-Power Spark Plug (TR55GP) is engineered to deliver better fuel efficiency, faster starts, and smoother engine performance. Featuring a fine platinum tip and solid copper core, it provides superior ignitability, reduced voltage requirements, and extended service life—making it a reliable upgrade over conventional spark plugs.
🔧 Platinum center electrode ensures long-lasting spark and durability
🔧 Copper core enhances heat transfer and combustion efficiency
🔧 Reduces fouling and supports better fuel economy
🔧 Pre-gapped for easy installation and OE fit
Brand & Part Number: NGK 3403 (TR55GP)
Material: Platinum with Copper Core
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 5
Seat Type: Gasket
Resistor: Yes
Gap: 1.1mm (0.043 in)
Choose NGK TR55GP G-Power for dependable ignition, enhanced performance, and longer plug life—order yours today!