For Sale Today... Genuine Echo GEAR, BEVEL PART # V651001050 replaces older part number V651000011 This gear fits the square drive end of the tensioner screw shaft -for various Echo models including CS-400, CS-370 and others with side cover adjuster access. Fits the chain tensioner adjuster on all of the following models: 326T CS-271T S/N: C21112001001 - C21112999999 CS-271T S/N: C21211001001 - C21211999999 CS-271T S/N: C21313001001 - C21313999999 CS-301 S/N: 02001001 - 02999999 CS-301 S/N: 04001001 - 04999999 CS-310 S/N: C04511001001 - C04511999999 CS-310 S/N: C04612001001 - C04612999999 CS-310 S/N: C04713001001 - C04713999999 CS-330MX4 S/N: C07213001001 - C07213999999 CS-330MX4 S/N: C07311001001 - C07311999999 CS-330MX4 S/N: C07411001001 - C07411999999 CS-330T S/N: 09001001 - 09999999 CS-330T S/N: 10001001 - 10999999 CS-330T S/N: C04212001001 - C04212999999 CS-330T S/N: C07711001001 - C07711999999 CS-330T S/N: C08611001001 - C08611999999 CS-330T S/N: C09613001001 - C09613999999 CS-340 S/N: 03001001 - 03999999 CS-340 S/N: 04001001 - 04999999 CS-341 S/N: 02001001 - 02999999 CS-341 S/N: 04001001 - 04999999 CS-341 S/N: C04112001001 - C04112999999 CS-341 S/N: C07611001001 - C07611999999 CS-341 S/N: C08511001001 - C08511999999 CS-341 S/N: C09513001001 - C09513999999 CS-345 S/N: 03001001 - 03999999 CS-345 S/N: 04001001 - 04999999 CS-346 S/N: 02001001 - 02999999 CS-346 S/N: 04001001 - 04999999 CS-360T S/N: 09001001 - 09999999 CS-360T S/N: 10001001 - 10999999 CS-360T S/N: C04412001001 - C04412999999 CS-360T S/N: C07811001001 - C07811999999 CS-360T S/N: C08711001001 - C08711999999 CS-360T S/N: C09713001001 - C09713999999 CS-370 S/N: 09001001 - 09999999 CS-370 S/N: 10001001 - 10999999 CS-370 S/N: C06212001001 - C06212999999 CS-370 S/N: C08011001001 - C08011999999 CS-370 S/N: C08911001001 - C08911999999 CS-370 S/N: C09913001001 - C09913999999 CS-400 S/N: C08111001001 - C08111999999 CS-400 S/N: C09011001001 - C09011999999 CS-400 S/N: C09212001001 - C09212999999 CS-400 S/N: C10013001001 - C10013999999 CS-4200ES S/N: 36001001 - 36999999 CS-420ES S/N: 20001001 - 20999999 CS-450 S/N: C05713001001 - C05713999999 CS-450 S/N: C05812001001 - C05812999999 CS-520 S/N: 05001001 - 05999999 CS-520 S/N: 07001001 - 07999999 CS-520 S/N: C07113001001 - C07113999999 CS-520 S/N: C09312001001 - C09312999999 CS-530 S/N: C02803001001 - C02803999999 CS-530 S/N: C02904001001 - C02904999999 CS-550P S/N: C10712001001 - C10712999999 CS-550P S/N: C14113001001 - C14113999999 CS-600 S/N: C03920001001 - C03620999999 CS-600P S/N: C03603001001 - C03603999999 CS-600P S/N: C03704001001 - C03704999999 CS-680 S/N: C03203001001 - C03203999999 CS-680 S/N: C03304001001 - C03304999999 WE ARE A CERTIFIED DEALER!! Our main priority is to get you a genuine echo part with fast shipping and good communication. We value our feedback. It is how we represent ourselves . If you wish to return the item you purchased, you will be responsible for the shipping cost to send it back to us. When we receive the returned product, we will credit your account the full purchase price less the actual shipping cost. If you'd like to exchange an item that you purchased, you will be responsible for the cost difference and the shipping cost for the new product. Please be advised that we do not ship on weekends or holidays. If you purchase an item on Friday, Saturday or Sunday, it will be shipped on the next business day. shows an estimated ship time, that is exactly what it is...ESTIMATED! We will ship it within our time frame stated but cannot always depend on the shipping carriers. Thank you! Be sure to add me to your favorites list! Check out my other items!