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⚡ Spark your engine’s evolution with DiamondFIRE brilliance!
The E3.66 Premium Spark Plug features patented DiamondFIRE technology with a unique side-wire electrode design that enhances combustion efficiency, power, and fuel economy. Designed specifically for Hemi and other domestic engines, it offers a precise 14mm thread and 1.000" reach with a gasket seat for perfect fitment. Engineered with a colder heat range and yttrium alloy for durability and performance, it reduces emissions and carbon buildup. Backed by a 5-year/100,000-mile warranty, this spark plug ensures long-lasting, reliable ignition for a cleaner, more powerful drive.
| ASIN | B0018JV5PG |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,301,508 in Automotive ( See Top 100 in Automotive ) #6,346 in Automotive Replacement Spark Plugs |
| Brand | E3 |
| Brand Name | E3 |
| Compatible with Vehicle Type | Car |
| Core Material | Copper |
| Customer Reviews | 4.4 out of 5 stars 549 Reviews |
| Gap Size | 0.04 inches |
| Global Trade Identification Number | 00894489000664 |
| Included Components | (1) Spark Plug |
| Item Type Name | Spark Plugs |
| Item Weight | 3.2 ounces |
| Manufacturer | E3 Spark Plugs |
| Manufacturer Part Number | E3.66 |
| Manufacturer Warranty Description | 5 Year/100,000 Mile |
| Model Number | E3.66 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | E3.66 |
| Thread Size | 0.55 |
| Top Material Type | Alloy Steel |
| UPC | 894489000664 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car |
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