The alm manufacturing cj8 spark plug is suitable for many petrol brush cutters chainsaws garden vacuums grass trimmers hedge trimmers and other small engines fitted with a 12mm plug compares to ac delco cs42 cs49 c47w cs45autolite 235 254 255 2995 2996 xst255bosch ws7e ws8e ws9ec stk 7542 stc 7543denso t20m u w14m us w14mr u w14m u w14m u10 w20m u w20m us w22m u w22m us 6015 6016 6019 6022 6026 6034 6036 6039 6048general motors 5613234 5612891 5613322 5613166mega fire se 8jcmopar 4419643motorcra