TH109372 Wear Ring Fits John Deere Excavator 490D 490E 495D 490E +One New Aftermarket Replacement Bucket Cylinder Wear Ring Fits John Deere Excavators This aftermarket replacement bucket cylinder piston wear ring fits the hydraulic bucket cylinder on Fits John Deere D and E series excavators. The wear ring seats on the cylinder piston to maintain proper bore alignment, reduce metal to metal contact, and extend cylinder service life. It is a direct replacement for OEM part number TH109372 and is manufactured to meet