Part No. 1
GR-M525-20T Fuser Gear
Part No. 2
RU6-8293-000 Fuser Gear (29T), Pressure Roller
Part No. 3
GR-P3015-15T Fuser Gear (15T), Delivery Roller
Model 1
LaserJet Pro MFP M521dn
Model 2
LaserJet Enterprise 500 MFP M525dn M525f
Model 3
LaserJet Enterprise Flow MFP M525c