NGK 1698 G-Power Platinum Spark Plug ZNAR6AGP 12mm Tapered Seat

The NGK 1698 G-Power Platinum Spark Plug (NGK plug number ZNAR6AGP) is a single platinum spark plug for dependable ignition at a moderate price. It has a fine wire platinum center electrode and a trapezoidal cut ground electrode. It is a good upgrade over the conventional nickel alloy plugs that many engines use from the factory. NGK has supplied original-equipment spark plugs for decades.

Key Features:

• Fine wire platinum tip: The 0.6 mm platinum center electrode gives a stable spark and good durability.
• Platinum alloy construction: Longer service intervals and better performance than factory nickel plugs.
• Trapezoidal cut ground electrode: Reduces quenching for better ignitability and performance.
• Copper core: The 98 percent pure copper core improves heat dissipation and conductivity across a wide heat range.
• Cold-rolled threads: Help prevent cross-threading and damage to cylinder heads.
• Resistor design: About 5,000 ohm resistance helps suppress radio interference.

Specifications:

• NGK stock number: 1698
• NGK plug number: ZNAR6AGP
• Thread size: M12 x 1.25
• Thread reach: 26.5 mm (1.043 in.)
• Seat type: Tapered
• Hex size: 14 mm
• Heat range: 6
• Pre-set gap: 0.040 in. (1.0 mm)
• Center electrode: copper core with platinum tip
• Ground electrode: nickel, trapezoid tip design, J-gap
• Terminal: non-removable nut

Compared with conventional nickel plugs, the G-Power Platinum offers better durability, fuel efficiency, lower emissions, faster starts and quicker acceleration. It also costs less than double precious metal plugs.