This Denso U-Groove spark plug is made for select 1981-2010 Jeep, Chrysler and Other Makes, delivering a consistent spark for smooth idle, clean starts and efficient combustion.

Denso 5018 U-Groove Spark Plug Features:

• Fits Select 1981-2010 Jeep, Chrysler and Other Makes
• Nickel center electrode tip
• U-Groove ground electrode
• Heat range 16
• 0.035 in. pre-gap
• 19 mm reach
• 16 mm hex
• Flat seat
• 5000 ohm resistor
• U-groove ground electrode builds a larger flame kernel for reliable ignition
• Copper core center electrode for good heat transfer
• Five-rib insulator helps prevent flashover
• Copper-glass seal keeps the center electrode gas-tight
• 100 percent pre-fired at the factory