Shipping Calculator
 
Currency Conversion

 

 
  Click here for our Online Catalog of Vintage Bike Parts

Questions?  Call us at 315-926-5054

   Spark Plug and Spark Plug Cap Guide
 

The following guide shows how to interpret the different letters in the NGK plug number. 
 

For example:
The B8ES plug is 14mm thread (B),  has a middle heat range (8), a thread length of 19mm (E), and a standard 'hook' style electrode (S). 
The thread pitch is 1.25mm.
The platinum equivalent of the B8ES is B8EV
.

In addition to the spark plugs, the plug caps use a related numbering. 
The second letter of the plug cap determine which plug it will fit. 

For example the B in VB05F shows it fits B series 14mm thread spark plugs.  The D in SD05F shows it will fit either the 10mm or 12mm C or D spark plugs.

 

 

View all Spark Plugs
View all Spark Plug Caps

   
Click for Parts Search

 

 Parts by Brand

   

 Just Arrived!

   

 Parts by Model

   

 Parts by Category

   

 Reference Info

   
 

Workshop Manuals
Before you start work,
make sure you have a workshop manual

 

 
Clymer Workshop Manuals from $25.75

 

Payment by

accepted here