Compatibility
 
This Tension & Guide Pulley Set can also be used on the following rear derailleurs:

Shimano
XTR RD-M985-GS/SGS
RD-M986-GS
RD-M986-SGS
RD-M985
RD-M981-GS
RD-M981-SGS
RD-M980
RD-M820-SS