Features: 1.OE Number: The referencing OE number of this ignition coil are 4137 400 1350, 41374001350, which is molded designed depend on the original data. 2.Fitment: The engine ignition coil is a replacement for STIHL FS80 FS80R FS75 FS85 FC75 FC85 KM85 HL75 HS75 FH75 FR85 HT70 HT75 KA85 KW85 SP80 SP81 Trimmer. 3.Function: Improve combustion efficiency enhance electrical performance. Provides a higher intensity spark with faster recovery response, increased ignition energy intensity. 4.Premium Material: The ignition coil is made of heavy duty steel which is sturdy durable, helps to provide easy starting smooth operating. 5.Easy to Install: Stringently manufactured to meet the original stard, perfect replacement for the old or broken one, improving the time efficiency. Specification: Item Type: Ignition Coil OE Number: 4137 400 1350, 41374001350 Material: Metal, rubber Fitment: Replacement for STIHL FS80 FS80R FS75 FS85 FC75 FC85 KM85 HL75 HS75 FH75 FR85 HT70 HT75 KA85 KW85 SP80 SP81 Trimmer Note: Please double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!