NGK 92238 DCPR8E-BLYB Standard Copper Core Spark Plug 12mm 19mm Reach

The NGK 92238 (DCPR8E BLYB) Standard spark plug is a resistor-type, copper-core replacement spark plug. It is supplied in blister-pack (carded) packaging. It is built for OE nickel-alloy ignition applications, including small engine and powersports use. It delivers dependable ignition, smooth running and long service life. It is also known as an NGK Copper Core plug.

Key Features:

• Solid copper core: a 98% pure copper core gives excellent heat dissipation, conductivity and a wide heat range
• OE ceramic technology: high-grade alumina silicate ceramic insulator gives strong dielectric performance and good heat transfer
• Trivalent metal plating: resists corrosion and seizing, so the plug installs and removes easily
• Cold-rolled threads: help prevent cross-threading and cylinder head damage
• Triple gasket sealing: prevents combustion gas leakage
• Corrugated insulator ribs: help prevent flashover
• Resistor design: 5k ohm resistor helps suppress radio interference

Specifications:

• Thread diameter: 12mm, pitch 1.25mm
• Reach: 19mm (3/4")
• Seat type: gasket
• Hex size: 5/8" (16mm)
• Heat range: 8
• Gap: 0.028" (0.7mm)
• Center electrode: nickel, 2.5mm, projected
• Ground electrode: nickel, standard
• Terminal: removable terminal nut
• Torque: cast iron heads 10.8-18 lb-ft; aluminum heads 10.8-14.5 lb-ft

Cross references: DCPR8E BLYB, 4164, 7416, 22401KA310.

This plug is best suited to engines that use OE nickel-alloy plugs. It is not recommended for engines that came with factory precious-metal plugs. Upgrade to an NGK Iridium IX plug if you want more performance.