NGK's IX Iridium Series Plugs were Designed Specifically for the Performance Enthusiast.
- Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark
- Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines
- Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
- Corrugated Ribs Prevent Flashover
- Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
- Copper Core Aids in Heat Removal
- Triple Seals Prevent Leakage
Spark plugs sold each.
Note: NGK plugs are no longer factory gapped. DO NOT GAP IRIDIUM PLUGS WITH A COIN OR DISC STYLE GAP TOOL. Attempting to gap Iridium plugs with any tool that contacts the center electrode will damage the electrode and void any warranty. Use a gap tool such as those combined with feeler gauges which has a fork or slotted prong that allows you to gently bend the 'L' shaped ground electrode to the proper gap. Most Harley models require a gap of .038 - .040 for electronic ignitions. Be sure to check your factory service manual. The manufacturer does not warranty broken or damaged center electrodes, so use extreme caution.
Spark plugs sold each. Fits Big Twin Evo 1340 and Shovelhead, replaces HD 5R6A, Harley 33311-83
Fitment:
| Evolution 1340
|
|
1984-1999
|
| Shovelhead
|
|
Late 1978-1984
|
Pictured product appearance is subject to change.
As a manufacturer and supplier we are unable to provide any repair or diagnostic advice. Please consult a factory service manual or qualified motorcycle technician.
Fitment:
| Evolution 1340
|
|
1984-1999
|
| Shovelhead
|
|
Late 1978-1984
|
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