Performance Spark Plugs for Harley Big Twins / Evo by Ton's Performance. Ton's IX Iridium Series Plugs are 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

Interchangeable part numbers:
for Harley Davidson 5R6A
for Harley Davidson 32342-04
Bosch 0242229687
Brisk A-Line 38
Champion 810
Champion N11Y
Champion OE049
Champion RN11YC4
Denso 3201
Denso 5305
Denso D139
NGK BPR5E-11
NGK BPR5EIX-11