Niterra 5881 BKR7EKU Standard Spark Plug

The Niterra 5881 (BKR7EKU) is a standard copper core spark plug engineered to deliver reliable ignition performance for a wide range of automotive applications. As part of the NGK Ignition Parts lineup, this spark plug combines proven copper core technology with a U-groove ground electrode design for enhanced ignitability and durability.

Key Features:

• Copper core center electrode for superior heat dissipation and conductivity
• U-groove ground electrode design improves spark efficiency
• Heat range 7 for high-performance and turbocharged applications
• 14mm thread diameter with 19mm (3/4") hex size
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Resistor type construction minimizes electromagnetic interference

Manufactured by Niterra (formerly NGK Spark Plug Co.), the world's leading spark plug manufacturer, this component meets or exceeds OE specifications for quality and performance. The BKR7EKU features a projected insulator nose design that helps prevent fouling in demanding operating conditions while maintaining optimal combustion chamber temperature. Ideal for applications requiring a colder heat range spark plug to prevent pre-ignition in high-compression or forced-induction engines.