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Professional; Conventional
ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance.

Standard Spark Plugs feature:
  • A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you're looking for while improving its resistance to low-speed carbon fouling.
  • Hot-tip insulator heats fast and fires hot.
  • The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the corrosive environment of the combustion chamber.

Spark Plug Type Performance Differences

Ground Electrode Tip DesignSingle Prong Electrode
Ground ConfigurationSingle
Ground Electrode Core MaterialNickel Alloy
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialNickel
Gap Size0.044 in
Gap Size1.12 mm
Ground Electrode Quantity1
Hex Size5/8in
Manufacturer Heat Range2
Approximate Resistor Value2-12k ohms
Seat TypeTapered
Reach0.67 IN
Reach17.25 mm
Thread Diameter14 MM
Resistor TypeYes
Alternate/OEM Part Number(s): 19301658

ACDELCO Warranty Information
Lifetime for ignition wires, gas-charged shocks & struts, belts, hoses, universal joints, steering racks & gears, and ACDelco Professional chassis parts. Limited lifetime wear-out warranty for DuraStop brake pads and shoes. All other DuraStop brake parts, carry a limited 12 months/12,000 mile warranty. 24 months/24,000 miles for load-carrying and air-adjustable shocks, steering dampers. 24 months/24,000 miles for Professional New and Reman Alternators and Starters purchased on or after 3/1/12. Limited Lifetime for Professional Reman Alternators and Starters purchased before 3/1/12. 3 Year for RapidFire Performance Spark Plugs, 100,000 miles for Professional Platinum Spark Plugs, 100,000 miles for Iridium Spark Plugs. Limited Lifetime for Radiators purchased on or after 1/1/2015. 12 months/12,000 miles for other parts. Warranty returns can not be processed without complete VIN information on return instructions. IMPORTANT A/C COMPRESSOR WARRANTY NOTE: If the A/C system or the vehicle is five years or older, ACDelco requires a system flush and proof of purchase of an A/C Orifice Tube or A/C Expansion Valve for an A/C Compressor warranty to be valid.
Warranty Details