NGK 6684 Iridium IX Spark Plug BPR8EIX Fine Wire Iridium Tip 14mm

The NGK 6684 Iridium IX spark plug (BPR8EIX) is built for performance enthusiasts. It gives strong ignitability, better throttle response and good anti-fouling. It works as a performance upgrade over standard nickel alloy plugs. It is also a durable replacement for modified or high-output engines.

Key Features:

• Fine-wire iridium center electrode: The 0.6 mm iridium tip gives high durability and a consistently stable spark.
• Iridium alloy: It has an extremely high melting point, which suits modern high-efficiency engines.
• Tapered cut ground electrode: The reduced-quenching design improves fuel burn, starting, idling and throttle response.
• Copper core: The 98% pure copper core improves heat dissipation and conductivity across a wide heat range.
• Trivalent metal plating: It resists corrosion and seizing, so the plug installs and removes more easily.

Specifications:

• NGK part number: 6684 (plug code BPR8EIX)
• Heat range: 8
• Thread size: M14 x 1.25, 19 mm reach
• Hex size: 13/16 in (20.6 mm)
• Pre-set gap: 0.8 mm (0.031 in)
• Seat type: flat, with crush washer
• Resistor type: 5k ohm
• Terminal: removable nut
• Center electrode: iridium, fine wire
• Ground electrode: nickel, tapered cut, J-gap

Cross-references: Autolite XS61 and XS61DP, Nissan BY480-BPR8E, Mitsubishi MZ602087.

With its fine iridium tip and tapered ground electrode, the Iridium IX delivers crisp acceleration, good fuel efficiency and long service life.