NGK 1086 BCP4ES-11 Standard Nickel Spark Plug with Copper Core

The NGK 1086 (BCP4ES-11) Standard Spark Plug is an OE-quality nickel alloy spark plug for ignition systems that use conventional plugs. NGK is a leading OE supplier of spark plugs, and its Standard line is a dependable, economical replacement for worn or fouled plugs.

Key Features:

• Solid copper core: Gives superior heat dissipation, conductivity and a wide heat range.
• Nickel alloy electrodes: The nickel center electrode gives consistent performance and low voltage requirements.
• Alumina silicate ceramic insulator: This high-grade ceramic gives strong insulation and good heat transfer.
• Corrugated insulator ribs: The ribs help prevent spark flashover.
• Triple gasket sealing: Helps prevent combustion gas leakage past the shell.
• Cold-rolled threads: Help prevent cross-threading and cylinder head damage. The thread size is M14x1.25.
• Trivalent metal plating: Resists corrosion and seizing, which makes the plug easier to install and remove.

Specifications and Cross-References:

• NGK part number: 1086
• NGK plug number: BCP4ES-11
• Core material: copper
• Interchanges with DENSO 3183 and Q14R-U11, Autolite 3926, Kubota 12691-6771-1, 12691-6771-6 and 12691-67710, and Nissan 22401-V5014

This plug is best for engines that came with OE nickel alloy plugs. It is not recommended for engines with factory precious metal plugs.