Genuine Makita replacement V-belt JM21000135 — a poly‑V (multi‑rib) drive belt specified as 4PJ‑612 (nominal length 612 mm, 4 ribs) made to restore smooth, slip‑free drive on the LB1200F band saw.
This belt is the correct fit for the Makita LB1200F band saw (used on the machine’s drive/pulley system) and is supplied as the original Makita part referenced for that model.
If your band saw shows belt glazing, frayed ribs, or loss of cutting torque, this genuine Makita replacement will reinstall quickly and bring the drive train back to spec — it’s the same poly‑V profile the LB1200F uses for compact, high‑grip power transfer. Makita parts like this belt are ideal when you need the correct fit and form for repair.
Jump straight to the Makita spare parts diagrams:
