Hitachi Oil Seal - 321-301
Hitachi 321301 — genuine Hitachi oil seal for rotary hammers. Designed to stop oil leakage and protect internal components in the crank/cylinder area, this seal is specified as 35 × 53 × 7 mm (inner Ø × outer Ø × thickness).
Fits examples: listed for Hitachi/HiKOKI rotary hammers such as DH40MR, DH40MRY andDH45MR / DH45ME / DH45MEY) in Hitachi parts diagrams.
A direct, original Hitachi replacement made to the tool maker’s specification — easy to fit where the factory oil seal is required and commonly used when servicing the DH40 / DH45 . This item is a standard entry among Hitachi spare parts for these rotary-hammer models.
Compatible models this part will fit: