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The Green Spark Plug Company£13.38Visit shop Ngk Dilfr5a11 93759 Spark Plug Laser Iridium New Ngk-Dilfr5a11
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The NGK DILFR6A11 Iridium Ignition Spark Plug (97362) is designed for drivers and automotive technicians seeking to restore or maintain peak engine performance through high-quality original equipment components. By utilizing an ultra-fine, laser-welded iridium center electrode, these plugs provide exceptional ignitability and a significantly extended service life compared to standard copper or nickel options; however, users must verify engine compatibility and observe correct torque specifications to avoid damage during installation.
| Model Part Number | DILFR6A11 |
|---|---|
| Brand | NGK |
Yes, NGK Iridium plugs are typically pre-gapped, but you should always verify the gap against your vehicle's service manual before installation.
No, you should never use a wire brush on iridium spark plugs as it can damage the ultra-fine tip.
It provides superior ignitability and extreme durability, allowing for a smaller tip diameter that requires less voltage to fire.
While iridium plugs last longer than standard plugs, you should follow your vehicle manufacturer's recommended service interval, typically ranging from 60,000 to 100,000 miles.
No, the trivalent plating is a coating on the metal shell. You generally do not need to add anti-seize lubricant to these plugs.
Check that the ignition coil pack is fully seated and the connector is clicked into place.
Remove immediately and check for cross-threading; never force a plug into the cylinder head.
Verify that the spark plug gap matches your vehicle's service manual specifications.
Proper installation is vital for the longevity of the DILFR6A11. Always use a spark plug socket with a rubber insert to protect the delicate iridium tip during installation. Before threading by hand, ensure the cylinder head threads are clean and free of debris. Use a torque wrench to tighten the plug to the vehicle manufacturer's specified setting; over-tightening can crack the ceramic insulator or damage the cylinder head. While these plugs come pre-gapped, it is recommended to verify the gap with a wire-style feeler gauge rather than a coin-style tool, which can damage the fragile electrode. If removing or installing in a performance vehicle, apply a very light coat of anti-seize only if required by the vehicle manufacturer, though the plug's trivalent plating is generally designed to resist seizing on its own.
