​Spark plug with 19 mm hexagon and 9.5 mm thread lengthComparison numbers: Champion RCJ8M, Denso W20MRUSuitable for machines from the following brands: Honda, Kawasaki, Dolmar, Stihl, Partner, Husqvarna, Homelite, Anaka, Briggs & Stratton, Jonsered, Echo, Zenoah, Fylom, Honda: G100K1, GV100K1, GV100, GV150, GV200, GV400, G100K2, GV100K2  Kawasaki: FB460, FD620, FD590V, KHD600A, KHS750A, FA76, FA130, FD440,          FD501, FD590, FD611V, FD661D, SERIETD, SERIETG, SERIETS,             GA550, GA1000, GA1400, G D550, GD700, KG2900, KG1000       Dolmar: 100, 100S, 102, PS33, PS330, PS340, PS341, PS344, PS400,             PS401, PS410, PS33, PS411, B28, 103, 104, 105, 106, 108,             PS3300TH, 50, MS220, MS2300, MS250, MS3100                   Stihl: Sprayers, edge trimmers, hedge trimmers, brush cutters    Partner: 465, 495, 545, B180, B250, B265, B305, B322, B325          Husqvarna: 18R, 22RL, 24R, 25RL                                      Tanaka: ECS3301, ECS3351, ECS355                                     Homelite: HK18, HK24, HK28, HK33                                     Briggs & Stratton: 225, 325, 375, 500, 650                             Jonsered: GR26C, GT21, GT22, GT24, GT26, GT32L

Thread M10 x 1.00, thread length 12.7 mm, ~wrench size 16 mm12 Nm tightening torque, ~Comparison numbers: ~Bosch: USR7ACChampion: RZ7CDenso: W14EXR-UOregon: 77-355-1

Thread M14 x 1.25, thread length 19 mm, ~wrench size 21 mm30 Nm tightening torque, ~Comparison numbers: ~Bosch: WR8DC, WR8DC4, WR9DSChampion: RN11YC~ RN11CC, RN12YCDenso: W146EPR-UOregon: 77-314-1 ~

​Suitable for Honda: UMK422, UMK431, UMT24S, GX22, GX28, GX30, GX31, GXH50, GXV50, GX100                             External thread M10, thread length 12 mm, wrench size 16 mm.                          Equivalent numbers: Champion C9Y

Suitable for chainsaws: Dolmar, Echo, Homelite, Husqvarna, Jonsered, Sachs, Stihl, Partner, Pioneer. Comparison numbers: NGK: BM7, BM7A Beru: 14SR-6F Bosch: WS7E, WS8E Champion: CJ6

Suitable for Honda engines and chainsaws from the brands: Blitz, Echo, Emak, Husqvarna, Jonsered, McCulloch, OleoMac, Partner, Solo, Stihl and Dolmar 109-115,112-119,120s, 116si,120si,133s,143,153, 166,309,310,343, Dolmar PS: 45,350,460,4600.4605.5105,6400,6800i, 7300, 7310,7910.9010, Dolmar Motor Senses MS: 24.26.30, LT : 30 Comparison numbers: NGK: BPM6A, BPMR7A, BPMT7A, Beru: 14SR-6F, Bosch: WS5E, WSR8F, Champion: RCJ6Y, CJ7Y, RCJ7Y, RCJ7ADenso: W22MPR-U

for lawn mowers, motor hoes, heaters, ..., for Briggs and Stratton and Tecumseh engines.Comparison numbers: NGK: BR2LM Champion: J19LM, RJ19LM, BS19LMR Briggs&~Stratton: BS-SV , BS-SV CU, 992300CBosch: WR11E0

High-performance spark plug suitable for Dolmar PS: 32 C, 35 C, 350 SC, 420 SCThread M10 x 1.00, thread length 9.5 mm, wrench size 16 mm12 Nm tightening torque, Comparison number: Champion: RY4C