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💥 Ignite Efficiency, Drive with Confidence!
The E3 Spark Plugs E3.40 features patented DiamondFIRE side-wire technology that enhances combustion efficiency, delivering up to 12% more power and 13% better fuel economy. Designed specifically for domestic vehicles from the 1960s to early 1990s, it offers a precise 14mm thread and 0.460” reach with a taper seat. Its yttrium-enhanced alloy construction prevents pre-ignition and reduces emissions, backed by a 5-year/100,000-mile warranty for long-lasting, dependable performance.
| Brand | E3 |
| Core Material | Copper |
| Thread Size | 14mm |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00894489000404 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 894489000404 |
| OEM Part Number | E3.40 |
| Manufacturer | E3 Spark Plugs |
| Model | Automotive Spark Plug |
| Item Weight | 3.2 ounces |
| Product Dimensions | 6.1 x 4.1 x 0.8 inches |
| Item model number | E3.40 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | E3.40 |
| Position | Center |
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