Introducing the E3.40 Spark Plug – a 14mm, 0.460” reach plug with a taper seat, meticulously designed to fit domestic applications from the 60’s to the early 90’s. This high-performance spark plug is widely available in automotive retail stores, boasting advanced technology and innovative design for exceptional performance.

Key Features:

• Domestically Compatible: Tailored to fit a variety of domestic vehicles from the 60’s to the early 90’s for versatile use.
• Three-Legged DiamondFIRE Electrode: Secures the DiamondFIRE electrode to the shell with three legs, ensuring excellent heat transfer and increased turbulence in the cylinder.
• Patented DiamondFIRE Side Wire: Proven to enhance power, reduce fuel consumption, and improve hydrocarbon emissions over extended use.
• Taper Seat: Facilitates a secure fit for optimal combustion performance.
• Unique Ground Electrode: Engineered for superior performance.
• Full-Size Center Electrode: Provides consistent and efficient performance for a guaranteed five years or 100,000 miles.

The E3.40 Spark Plug is a reliable and high-performing choice, widely accessible for easy procurement. Experience improved power, fuel efficiency, and reduced emissions with the cutting-edge features of E3 automotive plugs. Trust E3 for a spark plug that exceeds expectations, delivering lasting performance across a variety of domestic applications.