Genuine Echo Authorized Substitution : The part number 72311-75900 has been changed to A051002010. While the new part may look different, it is a manufacturer approved substitution.

Genuine Echo Authorized Substitution : The part number 72312-21500 has been changed to 72312-21501. While the new part may look different, it is a manufacturer approved substitution.

Genuine Echo Authorized Substitution : The part number 72312-21502 has been changed to P021040960. While the new part may look different, it is a manufacturer approved substitution.

Genuine Echo Authorized Substitution : The part number 72312-21520 has been changed to V225000160. While the new part may look different, it is a manufacturer approved substitution.

No Longer Available : The part number 72312-22100 has been discontinued by Echo with no alternative. We apologize for any inconvenience.

No Longer Available : The part number 72313-15000 has been discontinued by Echo with no alternative. We apologize for any inconvenience.