Harley-Davidson

NGK Spark Plug for Harley-Davidson FX Shovel Head | 78-81

These are the NGK Spark Plugs for your Harley-Davidson FX Shovel Head | 78-81

Plug Gap Setting

0.04

Standard NGK Spark Plug

BPR5ES-11

Premium NGK Spark Plug

BPR5EIX-11

How to Check & Set Propper Gap for Your FX Shovel Head | 78-81 NGK Spark Plug.

Question:
What is the correct spark plug gap for a Harley-Davidson FX Shovel Head | 78-81?

Answer:
0.04

Learn more about NGK Spark Plugs >
Get complete specs for your Harley-Davidson FX Shovel Head | 78-81 >