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 part 885289 — piston bumper / piston damper for Hitachi/HiKOKI gas and strip nailers; designed to cushion the piston stroke and protect the cylinder head and seals during firing.
Fits a range of Hitachi / HiKOKI nailers including NR90GC / NR90GR /NR90GC2, NC40G , GFN3490 — check your model’s parts diagram for exact placement.
Manufacturer parts diagrams list this item as a molded rubber piston bumper with dimensions shown around 8.40 mm and 10.16 mm on the exploded views — useful to confirm fitment against the piston bore on your tool.
This is an original Hitachi replacement component: install the 885289 piston bumper to restore smooth piston travel, reduce impact wear and bring firing performance back to specification. As one of the small but essential Hitachi parts, it’s an inexpensive way to return your nailer to reliable operation.
