The iridium center electrode is both stronger and harder than platinum, while the platinum tipped ground electrode further contributes toward the extreme longevity of the plug; With NGK limited warranty.
- NGK
- NGK Laser Iridium
- Sold Individually
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A high quality, OE replacement spark plug; MOTORCRAFT SPARK PLUG 0.04 mm gap, standard plug type, standard service plug.
- Motorcraft
- Sold Individually
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The platinum ground electrode resists gas and electrical erosion and corrosion extending service intervals to 60,000 miles; The five-rib design prevents flashover while decreasing voltage loss.
- Denso
- Denso Iridium Power
- Sold Individually
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| 8 Cyl 5.3L |
LS, LT, LTZ |
| 8 Cyl 6.0L |
LT, LTZ |
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Guaranteed to provide more power while using less fuel, quicker starts and less fouling than competitive standard spark plugs; E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 17.52 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel alloy electrode tip material, projected insulator type.
- E3
- E3 DiamondFire
- Sold Individually
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Constructed from top quality materials to help the engine run clean and longer; AC DELCO PROFESSIONAL PLATINUM SPARK PLUG, SOLD INDIVIDUALLYAC Delco Professional Platinum Spark Plugs are perfect for engines that run on conventional plugs, and newer engines that require platinum plugs. Provides up to 100,000 miles of service before requiring replacement.Features:.
- AC Delco
- AC Delco Professional Platinum
- Sold Individually
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