**THESE PRODUCTS ARE NOW DISCONTINUED BY NGK GLOBALLY. WE HAVE A DENSO PRODUCT WITH IS ITS EQUIVILANT NOW FOR SALE, AND PROVING TO BE A BETTER PLUG THAN THE NGK WAS** (LINK BELOW)
NGK B9EGV Spark Plug to suit many engines as well as an economical option for models of Mazda rotary engines such as 12A, 13B and 20B.
**note** will require use of special reduced wall spark plug tool for installation into mazda rotary engine - as found here
Price is per spark plug. A 2 rotor engine will need 4 spark plugs, a 3 rotor engine will need 6.