Genuine Bosch grease tube (part number 1615430020 / 1 615 430 020) — a compact lubricating grease cartridge designed to refill the grease reservoir on Bosch angle grinders and rotary hammers to restore smooth gear and bearing operation. This original Bosch tube contains the tool-specific lubricant used at service points inside gearboxes and impact mechanisms, helping reduce wear, prevent corrosion and extend tool life.

Fits a wide range of Bosch models (examples): GBH 18V‑20; GWS 22‑230 H; GWS 7‑115; GWS 9‑115 S; GWS 12‑125 S; GWS 6‑115; GWS 850; GWS 660; GDS 18 E and similar grinders and rotary-hammer variants. Use this part when the service diagram or parts list for your model shows grease/tube 1615430020.

Sold as a single genuine Bosch grease tube for straightforward maintenance and quick fitment into the tool’s grease port — ideal when a worn or depleted lubricant supply is causing noise, excessive heat, or rough gearbox/impact action. Check your tool’s parts diagram for the grease item number to confirm compatibility before installing.

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