NAPA Auto Parts Sterling, VA
45449 Severn Way
Sterling,  VA  20166-8918
(703) 378-6666
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Sat:8:00 AM-3:00 PM
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Spark Plugs, Glow Plugs and Wire Sets

Part Types

Give Some Recognition To Your Ignition

The condition of your spark plugs or glow plugs is critical to the proper functioning of your sedan, van, SUV, crossover, pickup and especially heavy-duty trucks. Spark plugs determine power output, fuel economy and even engine temperature. Soot, grime and debris can collect around the connectors, altering the timing of the ignition spark which will cause unreliable, unstable performance.

A spark plug is responsible for creating the spark that an internal combustion engine needs to start and run. Electrical voltage from the battery is sent to the spark plug. The resulting electricity between two electrodes ignites the fuel-air mixture inside a cylinder. Our NAPA professionals recommend replacing your spark plugs every 30,000 miles, which matches most manufacturer recommendations.

Spark plugs and glow plugs can become stuck or broken. Still, replacing a bad spark plug or a worn-out spark plug with an advanced spark plug is a straight-forward task for any novice at-home mechanic. For tips, tricks and tools on removing old spark plugs, inspecting your parts for critical signs and symptoms of bigger failures, determining the proper placement, and prepping for a professional-level installation, access this NAPA Know How article: MIND THE GAP: HOW TO REPLACE SPARK PLUGS.

Rare Metals Create The Best Spark

OEM spark plugs often contain copper, nickel or chromium core electrodes. High-performance spark plugs can be composed of rare, durable, powerful metals like fine-wire iridium centers with double platinum ground electrodes. Glow plugs are typically used for heavy-duty diesel applications.

Whether you are shopping for spark plugs or all the components that connect to them, like a coil pack, wire terminal block, boot kit, connector kit, wire retainer, wire separator, wire terminal, distributor cap, dust cap, heat sleeve, fuel injector connector, headlight connector, coolant temperature sensor or ignition control module, NAPA AUTO PARTS carries the brands you know and trust: NGK, Bosch, Champion, Autolite, Denso and much more!

Before you start searching online for types of spark plugs and connector sets, reach out to the NAPA professionals for the best advice. These experts will know what you need for your Nissan Altima, Honda Accord, Ford Ranger, Chevy Cruze, Volkswagen Passat or Jetta, Saab or Volvo. Call customer service, chat online or connect with us on social platforms today!