521 - LOADER 30 HYDRAULICS Parts group 30 HYDRAULICS 30 HYDRAULICS . MID-MOUNT HYDRAULIC COUPLERS (521) HYDRAULICS, TRACTOR REMOTE OUTLETS TO LOADER CONTROL FOR LOADER VALVE LOADER CONTROL VALVE - 2 SPOOL LOADER CONTROL VALVE (521) DUST CAP AND PLUGS MOUNTING PARTS FOR LOADER CONTROL CLOSED CENTER LOADER VALVE SUPPLY AND RETURN HOSES OPEN CENTER LOADER VALVE SUPPLY AND RETURN HOSES (521) HYDRAULIC HOSES, CONTROL VALVE TO LOADER HYDRAULIC HOSES, MID-COUPLERS TO LOADER HYDRAULIC TUBING AND HOSES ON BOOM (521) HYDRAULIC TUBING AND HOSES ON BOOM (521) HYDRAULIC TUBING AND HOSES ON BOOM (541) HYDRAULIC OIL TUBES FOR GRAPPLE (541) LIFT AND BUCKET CYLINDER (521) Bucket Cylinder for 521 BUCKET CYLINDER (521) LIFT CYLINDER (521) LIFT CYLINDER (541) LIFT CYLINDER (541) BUCKET CYLINDER (541) BUCKET CYLINDER (541) Bucket Cylinder (541) (Non Self-Leveling) (024650 - ) Bucket Cylinder (541) (Non Self-Leveling) GRAPPLE CYLINDER (541) Attachment, Loader Suspension System W/ Manual On/Off Lever LOADER SUSPENSION SYSTEM