Iridium alloy has extremely high melting point making it perfect for today's high-tech and high performance engines; 16 mm hex size.
- NGK
- NGK Iridium IX
- Sold Individually
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| 6 Cyl 4.3L |
SLE, SLT, SLS, Envoy, Diamond Edition |
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 17.52 mm reach, 0.62 in. hex size, tapered seat, resistor, 1.5 mm non-adjustable gap size, copper core electrode material, nickel alloy electrode tip material, projected insulator type; Guaranteed to provide more power while using less fuel, quicker starts and less fouling than competitive standard spark plugs.
- E3
- E3 DiamondFire
- Sold Individually
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| 6 Cyl 4.3L |
SLE, SLT, SLS, Envoy, Diamond Edition |
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Features a platinum center electrode that utilizes platinum to shrink the surface area of the center electrode tip for maximum firing performance and minimum voltage requirements; The five-rib design prevents flashover while decreasing voltage loss.
- Denso
- Denso Iridium Power
- Sold Individually
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A high quality, OE replacement spark plug; MOTORCRAFT SPARK PLUG 0.06 mm gap, standard plug type, standard service plug.
- Motorcraft
- Sold Individually
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| 6 Cyl 4.3L |
SLE, SLS, SLT, Envoy, Diamond Edition |
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Metal glass fused resistor allows for maximum interference suppression while the ribbed insulator design prevents misfires due to current leakage; BOSCH SUPER CLASS PLATINUM PLUS SPARK PLUG -- Platinum plug, 14 mm thread size, 17.55 mm reach, 16 mm hex size, tapered seat, interference suppression resistor, heat fused platinum center electrode, tapered yttrium enhanced ground electrode, 1.5 mm gap, heat range 9.
- Bosch
- Bosch Platinum Plus
- Sold Individually
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| All Engines |
SL, SLE, SLS, SLT, Envoy |
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