Idler Pulley fits John Deere 50G 50D 9318048 fits Hitachi ZX50U-3 9237507

Compatible with Hitachi Mini Excavator(s) ZX50U-3 (s/n 275361-later). Replaces Hitachi OEM nos 9237507. Compatible with John Deere Mini Excavator(s) 50D, 50G. Replaces John Deere OEM nos 9318048.