Ignition Fit For STIHL FS90 FS110 FS100 FS130 HT101 HT130 4180 400 1308 Engine Parts Fit For STIHL FS90 FS110 FS100 FS130 HT101 HT130 cross reference part 4180 400 1308 tools Solid winding core stable internal structure extends time Consistent spark output smooth ignition response delivers reliable startup feedback Direct plug mount design aligns fixing holes convenient routine upkeep molded shell unified dimension machine internal space