Common fitments include Harley-Davidson, Honda, Yamaha & Kawasaki motorcycles
 
Part No. 2103-0066
 
Reliable ignition performance is essential for smooth throttle response, efficient combustion, and dependable starting. The 2103-0066 is a standard replacement motorcycle spark plug engineered to provide consistent ignition characteristics suited to everyday street use and routine service intervals.
 
This plug earns its place here because it supports stable engine operation without requiring modification or tuning changes.
 
Key features
OEM-style spark plug construction
Consistent ignition performance
Stable combustion characteristics
Suitable for everyday street applications
 
Who This Spark Plug Is For
Riders replacing worn or fouled spark plugs
Owners maintaining factory ignition performance
Street riders performing routine maintenance
 
Good to know
We do not install customer-supplied parts. This product is sold for customer installation or third-party service.
 
Place your order and we’ll confirm compatibility before shipping, or contact you with the correct alternative.