Chevy Spark Plugs
- NGK®Iridium IX™ Spark Plug (3689)Iridium IX™ Spark Plug (3689) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$7.79
- NGK®Iridium IX™ Spark Plug (7588)Iridium IX™ Spark Plug (7588) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7559)Iridium IX™ Spark Plug (7559) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7516)Iridium IX™ Spark Plug (7516) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.14
- NGK®Iridium IX™ Spark Plug (7401)Iridium IX™ Spark Plug (7401) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7355)Iridium IX™ Spark Plug (7355) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7316)Iridium IX™ Spark Plug (7316) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7300)Iridium IX™ Spark Plug (7300) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$7.79
- NGK®Iridium IX™ Spark Plug (7272)Iridium IX™ Spark Plug (7272) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7214)Iridium IX™ Spark Plug (7214) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7189)Iridium IX™ Spark Plug (7189) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7177)Iridium IX™ Spark Plug (7177) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$8.01
- NGK®Iridium IX™ Spark Plug (7397)Iridium IX™ Spark Plug (7397) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$7.79
- NGK®Iridium IX™ Spark Plug (6441)Iridium IX™ Spark Plug (6441) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$7.79
- NGK®Iridium IX™ Spark Plug (3764)Iridium IX™ Spark Plug (3764) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$7.79
- NGK®Iridium IX™ Spark Plug (3306)Iridium IX™ Spark Plug (3306) by NGK®. Extra Long Life Double Platinum Plug with Platinum Ground Strap. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration,...$7.79
- NGK®Iridium IX™ Spark Plug (6509)Iridium IX™ Spark Plug (6509) by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer...$7.79
- Denso®Cold Type Iridium Long-Life Spark Plug (3403)Cold Type Iridium Long-Life Spark Plug (3403) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center...$10.89
- Denso®Hot Type Iridium Long-Life Spark Plug (3435)Hot Type Iridium Long-Life Spark Plug (3435) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center...$11.84
- Denso®Hot Type Iridium Long-Life Spark Plug (3395)Hot Type Iridium Long-Life Spark Plug (3395) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center...$10.89
- Denso®Iridium Long Life™ Spark Plug (3443)Iridium Long Life™ Spark Plug (3443) by Denso®. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to be shrunk to only 0.7 mm in diameter. This produces a dramatic improvement in...Manufactured to boost your engine’s performanceEngineered utilizing the finest materials and equipment$10.98
- Denso®Iridium Long Life™ Spark Plug (3436)Iridium Long Life™ Spark Plug (3436) by Denso®. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to be shrunk to only 0.7 mm in diameter. This produces a dramatic improvement in...Manufactured to boost your engine’s performanceEngineered utilizing the finest materials and equipment$15.52
- Denso®Iridium Long-Life Spark Plug (3494)Iridium Long-Life Spark Plug (3494) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to...$11.84
- Denso®Iridium Long-Life Spark Plug (3432)Iridium Long-Life Spark Plug (3432) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to...$11.03
- Denso®Iridium Long-Life Spark Plug (3324)Iridium Long-Life Spark Plug (3324) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to...$7.83
- Denso®Iridium Long-Life Spark Plug (3396)Iridium Long-Life Spark Plug (3396) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to...$11.03
- Denso®Iridium Long-Life Spark Plug (5090)Iridium Long-Life Spark Plug (5090) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to...$6.57
- Denso®Iridium Long-Life Spark Plug (5087)Iridium Long-Life Spark Plug (5087) by Denso®. Iridium Long Life Plug - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to...$7.47
- NGK®HX™ Ruthenium Spark Plug (92714)HX™ Ruthenium Spark Plug (92714) by NGK®. NGK Spark Plugs is introducing the latest technology in high ignitability spark plugs to the automotive aftermarket NGK Ruthenium HX™. The ultimate high ignitability spark plugs from NGK....$11.40
- NGK®HX™ Ruthenium Spark Plug (97292)HX™ Ruthenium Spark Plug (97292) by NGK®. NGK Spark Plugs is introducing the latest technology in high ignitability spark plugs to the automotive aftermarket NGK Ruthenium HX™. The ultimate high ignitability spark plugs from NGK....$11.40
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While almost everyone can tell at least one of the functions fulfilled by spark plugs, just a few know about their role in heat transfer. Besides providing a spark that ignites fuel, the plugs contribute to reducing combustion temperature in the cylinders. In the meantime, the plugs themselves may get too hot or remain colder than needed. Overheating plugs can lead to pre-ignition and engine knocking, while cold plugs are not able to effectively burn carbon deposits on their surface. Hence, choosing the most suitable set of spark plugs for your vehicle is important; fortunately, there’s no shortage of choices.
All of these parts have a center electrode surrounded by a ceramic insulator and the side one that is grounded. The plugs are screwed into the cylinder head, with the electrodes protruding into the cylinders. The most spread center electrodes are made of copper and nickel, while many high-performance models have a thin iridium or platinum center electrode. Its small diameter increases the spark's energy, while the precious metal provides higher resistance to burning out and melting. For a wide selection of quality Chevy spark plugs, visit our online store.