"ACDelco Gold RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. When your vehicle struggles with hard starting, rough idling, or engine misfires, replacing worn ignition components can restore smooth acceleration and consistent power. Today's advanced engines demand precise ignition timing, efficient fuel combustion, and consistent power delivery across thousands of firing cyclesѡnd the spark plug stands as the critical component that makes it all possible. Engineered with a core that helps provide great heat transfer and optimize durability, along with a coating that helps reduce corrosion, this part is validated to deliver reliable performance under demanding conditions. By supporting proper timing and working seamlessly with your ignition coil, it prevents hesitation when pressing the gas pedal and plays a vital role in your vehicle emission controls. Whether you are navigating stop-and-go city traffic or taking long highway road trips, a fresh spark ensures reliable cold starts and helps maintain optimal fuel economy. ACDelco Gold parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors."
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36 Months/Unlimited Miles Limited Warranty (Parts Only). First 24 Months Labor Included. See ACDelco.com for more details.
Please visit our warranty page on Gmparts.com for full warranty details.
Yes, this interval depends on what type of spark plug your vehicle requires. Refer to your owner's manual or contact your vehicle's manufacturer for more information.
Yes, if it is the scheduled time for spark plug replacement.
Yes. Diesel engines require glow plugs because diesel engines operate differently than gas engines. ACDelco Professional Glow Plugs are specially designed to give diesel engines the heat they need for their cold starts. Contact your local dealer, ACDelco service center, or refer the manufacture’s service information.
Yes. When ACDelco spark plugs are manufactured, they are pre-gapped to the correct gap specification.
Not always, but you should inspect your spark plug wires for wear when replacing your spark plugs. Refer to your vehicle owner's manual or contact the manufacturer for more information.
Yes, pre-ignition can cause serious damage to your engine. Pre-ignition is the ignition of fuel before the actual spark occurs, which causes a rapid temperature rise in the combustion chamber that can damage engine components and melt spark plug electrodes. Causes of pre-ignition include but are not limited to a buildup of deposits that can become incandescent in the combustion chamber, improper installation torque being applied to spark plugs, and having spark plugs with a heat range that is too hot for the engine's operating condition.
No, cleaning your old spark plugs is not recommended. Dirty, fouled spark plugs may also have broken or chipped insulator tips, worn electrodes, or worn or missing side wires. These conditions severely affect spark plug performance. Replace your dirty, fouled spark plugs with new ACDelco spark plugs.
Yes, ACDelco has marine spark plugs for many applications.
GM Part #19323046
ACDelco Part #21
