Echo & Shindaiwa Genuine Part V103001500 is used on models SRM-225i (S54911001001 - S45911999999) Straight Shaft Trimmer / Brushcutter-SRM-225i (S55013001001 - S55013999999) Straight Shaft Trimmer / Brushcutter-SRM-225 (S04011001001 - S04011999999) Straight Shaft Trimmer / Brushcutter-SRM-225SB (S79312001001 - S79312999999) Straight Shaft Trimmer / Brushcutter-SRM-225U (S79012001001 - S79012999999) Straight Shaft Trimmer / Brushcutter-SRM-225 (S04113001001 - S04113999999) Straight Shaft Trimmer / Brushcutter-SRM-225SB (S79411001001 - S79411999999) Straight Shaft Trimmer / Brushcutter-SRM-225U (S79111001001 - S79111999999) Straight Shaft Trimmer / Brushcutter-SRM-225i (S08712001001 - S08712999999) Straight Shaft Trimmer / Brushcutter-SRM-225SB (S79513001001 - S79513999999) Straight Shaft Trimmer / Brushcutter-SRM-225U (S79213001001 - S79213999999) Straight Shaft Trimmer / Brushcutter-PPF-225 (S63212001001-S63212999999) Power Pruner Fixed Shaft-PPF-225 (S63311001001-S63311999999) Power Pruner Fixed Shaft-PPF-225 (S63413001001-S63413999999) Power Pruner Fixed Shaft-PPF-235ES (S64437001001-S64437999999) Power Pruner Fixed Shaft-PPT-235ES (S07037001001-S07037999999) Power Pruner Telescoping Shaft-PE-225 (S78611001001 - S78611999999) Edger-PE-225 (S78712001001 - S78712999999) Edger-PE-225 (S78813001001 - S78813999999) Edger-SHC-225 21.2cc Hedge Trimmer w/20" Shaft-GT-225 (S09313001001-S09313999999) 21.2 cc Curved Shaft Trimmer-GT-225 (S09911001001-S09911999999) 21.2 cc Curved Shaft Trimmer-GT-225 (S53912001001-S53912999999) 21.2 cc Curved Shaft Trimmer-GT-225 (S08612001001-S08612999999) 21.2 cc Curved Shaft Trimmer-GT-225I (S08612001001-S08612999999) 21.2 cc Curved Shaft Trimmer-GT-225I (S54711001001-S54711999999) 21.2 cc Curved Shaft Trimmer-GT-225I (S54813001001-S54813999999) 21.2 cc Curved Shaft Trimmer-PAS-225 (S59511001001-S59511003000) Gas Power Source Attachement-PAS-225 (S59511003001-S59511999999) Gas Power Source Attachement-PAS-225 (S59612001001-S59612