We are currently experiencing substantial delays with Hitachi/HiKOKI and Metabo spare parts due to the two brands merging warehouse. At this moment in time we are unable to provide confirmed delivery dates on out of stock parts, for any urgent requirements please contact us prior to ordering.
Original Hitachi piston — part number 981885 (also listed as 981‑885) — a genuine replacement piston for Hitachi/Metabo HPT / HiKoki demolition and rotary hammers. The piston is the internal driving element that links to the connecting rod and drives the striker assembly in hammer and demolition drills; it’s sold as an individual, direct‑fit replacement to restore correct impact action.
Example fits include Hitachi models such as DH28Y, DH35 (Metabo HPT / HiKoki), DH38YB1, DH38YD, DH38YE (1.5" rotary hammer), DH38YF (spline), DH40FA/DH40FB/DH40MA/DH40MB/DH40YB series, H45SA/H45SB demolition hammers and related VRY38 variants. When replacing a worn piston, using this original Hitachi part helps restore impact performance without modifying mating components and keeps other power tool parts operating to factory tolerances.
