Original Makita pump gasket / pump packing — part no. 5106042310. This small, flexible sealing gasket sits under the carburetor pump diaphragm to seal the fuel‑pump chamber and stop fuel leaks or erratic fuel delivery; it’s made to the same profile used on Makita brushcutter carburetor pump assemblies so it installs in place of the worn gasket.

Fits Makita brushcutter models in the RBC525 / RBC525E and RBK525G, so it’s the correct replacement when the fuel‑pump seal in those carburetors has hardened or torn.

A direct, original Makita spare part that restores pump sealing without modification — ideal if you need a straightforward repair to get the engine running smoothly again. This item is listed among Makita spare parts and is a small but critical consumable when working on parts for power tools.