NGK 2086 CR8HSA Standard Nickel Spark Plug, Heat Range 8, 10mm Thread

The NGK 2086 (CR8HSA) Standard Spark Plug is a resistor-type nickel spark plug built to OE specifications for small engines, motorcycles, scooters and powersports applications. NGK Standard plugs are made for long life and steady ignition performance, and are a dependable replacement for engines originally equipped with nickel alloy plugs.

Key Features:

• Trivalent metal plating resists corrosion and seizing, which makes installation and removal easier
• Cold-rolled threads help prevent cross-threading and cylinder head damage
• Pure alumina silicate ceramic insulator gives strong insulation and good heat transfer
• Corrugated insulator ribs help prevent flashover
• Copper core helps draw heat away from the firing end and gives a wide heat range
• Triple seals help prevent combustion gas leakage
• Built-in 5k ohm resistor helps suppress radio-frequency interference

Specifications:

• NGK stock number: 2086
• NGK part/service number: CR8HSA
• Heat range: 8
• Thread size: M10 x 1.0 mm
• Reach: 12.7 mm (1/2 in.)
• Hex size: 5/8 in. (16 mm)
• Seat type: Gasket (crush washer)
• Pre-set gap: 0.028 in. (0.7 mm)
• Terminal: Threaded stud
• Center electrode: Nickel, standard, non-projected
• Ground electrode: Nickel, single
• Resistor: Yes, 5k ohm
• Torque: 7.2-10.8 lb-ft in cast iron heads, 7.2-8.7 lb-ft in aluminum heads

Check the gap before installing, and tighten to the specified torque for a reliable seal and consistent performance.