Genuine Echo / Shindaiwa TENSIONER, CHAIN Part# C309000160 Part C309000160 (TENSIONER, CHAIN) Where Used: · CS-590 S/N: 37000001 - 37999999-->Chain Brake · CS-590 S/N: C36626001001 - C36626999999-->Chain Brake · CS-600 S/N: C24526001001 - C24526999999-->Clutch, Chain Brake, Auto Oiler · CS-600P S/N: C03603001001 - C03603999999-->Chain Brake · CS-600P S/N: C03704001001 - C03704999999-->Chain Brake · CS-600P S/N: C22312001001 - C22312999999-->Chain Brake S/N: C22312001001 - C22312001600 · CS-600P S/N: C22312001001 - C22312999999-->Chain Brake S/N: C22312001601 - C22312999999 · CS-600P S/N: C22413001001 - C22413999999-->Chain Brake S/N: C22413001001 - C22413001550 · CS-600P S/N: C22413001001 - C22413999999-->Chain Brake S/N: C22413001551 - C22413999999 · CS-620P S/N: C26712001001 - C26712999999-->Chain Brake · CS-620P S/N: C26813001001 - C26813999999-->Chain Brake · CS-620P S/N: C32026001001 - C32026999999-->Chain Brake · CS-620PW S/N: C26912001001 - C26912999999-->Chain Brake