Makita BASE PLATE RP0900 - 450819-1
Original Makita base plate — part number 450819-1 — designed to replace the plastic base on the plunge base for Makita routers. It’s a direct-fit base plate for plunge setups used with model RP0900-series plunge bases.
Molded plastic construction with precise mounting locations: outer diameter ≈145 mm, inner/center opening ≈70 mm, overall width 110 mm and thickness ≈3 mm; diagonal distance between mounting-hole centers ≈119.5 mm. The part is secured with the plunge-base screws called out in the parts listing (4 × countersunk M4 × 10 and 2 × pan‑head M5 × 10). A straightforward, original Makita replacement to restore the plunge base seating and dust/clearance fit.
Jump straight to the Makita spare parts diagrams:
Compatible models this part will fit:
