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⚡ Ignite Efficiency, Drive the Future
The E3.40 Premium Automotive Spark Plug features patented DiamondFIRE technology with a unique side-wire electrode that enhances combustion efficiency, delivering up to 12% more power and 13% better fuel economy. Designed for domestic vehicles from the 1960s to early 1990s, it reduces harmful emissions and carbon buildup while offering a durable 5-year/100,000-mile warranty. Its precision 14mm thread and taper seat ensure a perfect fit, making it the smart upgrade for classic car enthusiasts seeking performance and sustainability.
| Manufacturer | E3 Spark Plugs |
| Brand | E3 |
| Model | Automotive Spark Plug |
| Product Dimensions | 15.49 x 10.41 x 2.03 cm; 90.72 g |
| Item model number | E3.40 |
| Exterior | Machined |
| Manufacturer Part Number | E3.40 |
| OEM Part Number | E3.40 |
| Position | Center |
| Item Weight | 90.7 g |
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