This is a Genuine OEM Echo 91PX57CQ 16" Chainsaw Chain for CS-303T, CS-310, CS-352, CS-370, CS-370F and CS-400 Chainsaws. ECHO's 16 in. replacement chainsaw chain (91PX57CQ) is of standard sequence and designed with unique chamfer chisel cutters to deliver low vibration and low kickback to increase performance and durability while providing additional safety to the user. By replacing your chain, you help to extend the life of your chainsaw bar and keep your equipment running at peak performance. This replacement chain has a 0.050 in. gauge and 3/8 in. low-profile pitch.
Fits Models:
- CS-303T S/N: C67215001001 - C67215999999 Chain, Guide Bar
- CS-310 S/N: C32914001001 - C32914999999 Chain, Guide Bar
- CS-310 S/N: C33014001001 - C33014999999 Chain, Guide Bar
- CS-310 S/N: C33113001001 - C33113999999 Chain, Guide Bar
- CS-310 S/N: C67815001001 - C67815999999 Chain, Guide Bar
- CS-310 S/N: C67915001001 - C67915999999 Chain, Guide Bar
- CS-310 S/N: C80829001001 - C80829999999 Chain, Guide Bar
- CS-330MX4 S/N: C04312001001 - C04312999999 Chain, Guide Bar
- CS-330T S/N: C04212001001 - C04212999999 Chain, Guide Bar
- CS-330T S/N: C07711001001 - C07711999999 Chain, Guide Bar
- CS-330T S/N: C08611001001 - C08611999999 Chain, Guide Bar
- CS-330T S/N: C09613001001 - C09613999999 Chain, Guide Bar
- CS-330T S/N: C33914001001 - C33914999999 Chain, Guide Bar
- CS-3410 S/N: C93512001001 - C93512999999 Chain, Guide Bar
- CS-3410 S/N: C93613001001 - C93613999999 Chain, Guide Bar
- CS-3510 S/N: C82015001001 - C82015999999 Chain, Guide Bar
- CS-352 S/N: C19612001001 - C19612999999 Chain, Guide Bar
- CS-352 S/N: C19711001001 - C19711999999 Chain, Guide Bar
- CS-352 S/N: C19813001001 - C19813999999 Chain, Guide Bar
- CS-352 S/N: C33314001001 - C33314999999 Chain, Guide Bar
- CS-352 S/N: C68115001001 - C68115999999 Chain, Guide Bar
- CS-352 S/N: C70415001001 - C70415999999 Chain, Guide Bar
- CS-3520 S/N: C93429001001 - C93429999999 Chain, Guide Bar
- CS-353ES S/N: C31926001001-C31926999999 Guide Bar, Chain
- CS-370 S/N: C06212001001 - C06212999999 Chain, Guide Bar
- CS-370 S/N: C08011001001 - C08011999999 Chain, Guide Bar
- CS-370 S/N: C08911001001 - C08911999999 Chain, Guide Bar
- CS-370 S/N: C09913001001 - C09913999999 Chain, Guide Bar
- CS-370 S/N: C33514001001 - C33514999999 Chain, Guide Bar
- CS-370 S/N: C33714001001 - C33714999999 Chain, Guide Bar
- CS-370 S/N: C69515001001 - C69515999999 Chain, Guide Bar
- CS-370F S/N: C27611001001 - C27611999999 Chain, Guide Bar
- CS-370F S/N: C27713001001 - C27713999999 Chain, Guide Bar
- CS-370F S/N: C33614001001 - C33614999999 Chain, Guide Bar
- CS-370F S/N: C69615001001 - C69615999999 Chain, Guide Bar
- CS-370F SN C27512001001 - C27512999999 Chain, Guide Bar
- CS-370F SN C27611001001 - C27611999999 Chain, Guide Bar
- CS-400 S/N: C10013001001 - C10013999999 Chain, Guide Bar
- CS-400 S/N: C08111019801 - C08111999999 Chain, Guide Bar
- CS-400 S/N: C09212001001 - C09212999999 Chain, Guide Bar
- CS-400 S/N: C10013001001 - C10013999999 Chain, Guide Bar
- CS-400 S/N: C33714001001 - C33714999999 Chain, Guide Bar
- CS-400 S/N: C69715001001 - C69715999999 Chain, Guide Bar
- CS-400F S/N: C33814001001 - C33814999999 Chain, Guide Bar
- CS-400F S/N: C69815001001 - C69815999999 Chain, Guide Bar
- CS-400F SN C27812001001 - C27812999999 Chain, Guide Bar
- CS-400F SN C27911001001 - C27911999999 Chain, Guide Bar
- CS-400F SN C28013001001 - C28013999999 Chain, Guide Bar
