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.
337188 supersedes older part numbers: 303-805,
Original Hitachi return spring (part no. 337188) — a direct-fit replacement for the blade-return/brake assembly on Hitachi circular saws, listed as the updated part that replaces the older 303805.
This compact compression spring is supplied as a single original Hitachi piece and is specified in Hitachi parts diagrams for the C9U2 , C9BU2 and C9U - so it’s an exact match where the parts diagram calls out item 8/8A.
Measured from the exploded diagram, the spring is a short, tight coil — roughly 17 mm free length with an inner/outer dimension in the small single-digit millimetre range — sized to sit in the saw’s return/brake pocket and restore correct tension and reset action.
Sold individually and ready to install straight from the parts diagram, this genuine Hitachi item is the straightforward choice when you need a replacement that restores the saw’s return action. Use this genuine Hitachi spare parts reference when checking compatibility on parts lists and exploded drawings for your tool — it’s a common small repair item among parts for power tools.
