20 Spool & Cap Combos Fits Stihl Head Cover 25-2 FS 90 100 110 120 130 55 80 model-6210 EURO This outer valve compression spring

This outer valve compression spring installs in the cylinder head of Fits Caterpillar 3500 series diesel engines

restoring proper engine airflow and exhaust routing on these classic agricultural machines

405021X151

Tractor Models: 2120

Overall Dimensions: 24 1/4 in

20 Spool & Cap Combos Fits Stihl Head Cover 25-2 FS 90 100 110 120 130 55 80 model-6210 EURO This outer valve compression springTwenty (20) Aftermarket Replacement Trimmer Head Spool & Cap Cover Kits Fits Stihl Trimmer Models: FS44, FS55, FS80, FS83, FS85, FS90, FS100, FS110, FS120, FS130, FS200, FS250, FS KM, KM55, KM85, KM90, KM110, KM130 Kit Contains: (20) Trimmer Head Bump Spool (w o Line) for Autocut 25 2 (20) Upper Trimmer Head Bump Spool Cap Cover The model numbers listed are for reference only. Many of the same models use different parts based on model year or serial