Spark Plug Adaptors

SPARK PLUG ADAPTORS

7/8″ to 14mm

Small reducer

Our spark plug adaptors for the Model A Ford are designed to convert the 7/8″ cylinder head threads down to 14mm to enable modern spark plugs to be used. They are bright zinc plated to match the spark plugs.
Price $16.10 each incl GST

 

18mm to 14mm

Small reducer2

These spark plug adaptors are designed to convert any vehicle with 18mm cylinder head threads down to 14mm to enable modern spark plugs to be used. They are bright zinc plated to match the spark plugs.
Price $16.10 each incl GST

Spark plug (and adaptor) washers.

Small Plug washers

These copper “crush washers” are designed for use with spark plugs. They come in two sizes, 18mm and 7/8″
Price $2.99 each incl GST

Spark Plug Nuts

Small plug nuts

These brass spark plug nuts are designed for use with 7/8″ spark plugs.
Price $5.52 incl GST for a set of four.