Original Makita water block / plug — part number ME01676331 (also referenced as plug MP‑335.4Z). This genuine Makita replacement seals the water-pump housing/port on 1" (25.4 mm) centrifugal water pumps to prevent leaks and maintain correct water flow.
Compatible with Makita 1" pump models such as EW1050H, EW1050HX and EW1060H (listed in Makita parts breakdowns).
Compact, single-piece replacement supplied individually and intended to drop into the pump’s MP‑335.4Z port — a straightforward fit for the 25.4 mm suction/discharge assembly with no modification required. Part of the Makita spare parts range for small water pumps, it’s the exact match to restore sealing performance and stop weeps or drips from a worn or damaged plug.
Jump straight to the Makita spare parts diagrams:
