E3 Spark Plugs E3.56 Autolite Copper Core Spark Plug, Leak-Proof Seal, Enhanced Heat Transfer, Durable Steel Shell, Prevents Misfires, Pack of 1
Key features
- •DIAMONDFIRE TECHNOLOGY: Features a patented ground electrode secured with three legs to enhance heat transfer, increase turbulence in the cylinder, and improve combustion efficiency for smoother engine performance
- •MORE POWER AND FUEL EFFICIENCY: E3 Spark Plugs deliver up to 12% more power and up to 13% better fuel economy in small engines, and up mid-single digits on automotive applications, helping to enhance overall engine performance and reduce fuel consumption across a wide range of vehicles
- •LOWER EMISSIONS: The more complete burn helps to reduce emissions, minimize carbon buildup, promote cleaner combustion, and support compliance with modern environmental and emissions standards
- •ENHANCED DURABILITY AND FIT: Built with a Yttrium-enhanced alloy that lowers side wire temperature by up to 8% to prevent pre-ignition, with precise specs including 14mm thread diameter, 0.750-inch thread reach, gasket seat, and 5/8-inch hex size
- •5-YEAR WARRANTY: Engineered for long-lasting performance in a variety of late-model and import vehicles; includes a 5-year or 100,000-mile limited warranty for added confidence and reliability
E3 Spark Plugs E3.56 Autolite Copper Core Spark Plug, Leak-Proof Seal, Enhanced Heat Transfer, Durable Steel Shell, Prevents Misfires, Pack of 1
List Price: $16.45$14.81DEALYou Save: $1.64 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (9)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
