Fits Echo Blowers:
PB-602, PB-603, PB-610, & PB-611
Replaces Zama Part Numbers: C1U-K16A, C1M-K49A, C1M-K49B, & C1M-K49C
Replaces Echo & Shindaiwa Part Numbers:
12520008664, 12520008665, 12520008666, & 12520008667
It is the customer's responsibility to make sure this is the correct part for their unit.