NGK Spark Plug for Harley-Davidson ML

These are the NGK Spark Plugs for your Harley-Davidson ML

Plug Gap Setting

0.025

Standard NGK Spark Plug

BPR5ES

Premium NGK Spark Plug

BPR5EIX

How to Check & Set Propper Gap for Your ML NGK Spark Plug.

Question:
What is the correct spark plug gap for a Harley-Davidson ML?

Answer:
0.025

Learn more about NGK Spark Plugs >
Get complete specs for your Harley-Davidson ML >