Original Bosch F016F04460 — genuine non‑return/check valve (O‑ring/valve) designed for Bosch pressure washers.
What it does: a small elastomer valve/O‑ring assembly that prevents backflow and helps keep the pump and spray system sealed and primed; fitted inside the pump/valve assembly where it replaces the factory seal.
Key details: original Bosch spare (part number F016F04460); supplied as the single valve/O‑ring element used in the pump/valve section of several Bosch AQT and AdvancedAquatak machines — made to the same profile Bosch used in the factory parts diagrams.
Example models it fits (check your 10‑digit type number on the machine to confirm fit): AQT 33‑10 (3600HA7000), AQT 35‑12 (3600HA7100), AQT 37‑13, AQT 40‑13, AQT 42‑13 and AQT 45‑14 X, plus AdvancedAquatak 140/150/160 and several Universal/Aquatak variants. (Cross reference with the 10 digit version number from the side of the machine beofre purchasing)
Simple swap‑in replacement — use the Bosch power tool parts diagram for your exact model to locate the valve position before installation.
(If your model’s type number isn’t one shown above, check the machine’s parts diagram — the F016F04460 appears in the diagrams for many AQT/AdvancedAquatak units.)
