Makita 515330-1 — Armature Assembly (genuine Makita)

Get the genuine Makita armature assembly (part no. 515330-1) — the complete rotor/commutator unit designed to restore motor performance in compatible corded Makita grinders and wall chasers. This ready-to-install assembly replaces a worn or damaged rotor and includes the rotor shaft with commutator, factory-wound copper windings and cooling fan section as supplied by Makita, so you don’t have to rebuild individual components. It’s intended for the 110V brush-type motors used in several Makita models.

Why this part matters
- Restores smooth rotation and torque lost from burned commutator bars, broken windings or a bent rotor.
- Balanced and finished to Makita’s factory specification to minimize vibration and electrical noise.

Example models this part is listed to fit
- Makita SG1250 / SG1251 (125 mm wall chaser)
- Makita 9566CV (6" cut‑off/angle grinder) — commonly referenced as compatible by Makita parts suppliers.

Notes for buyers
- Sold as the complete armature assembly (part no. 515330-1). Check that your tool uses a 110V/115V brush-type armature before installing. If commutator damage is extensive or bearings are worn, replace brushes and bearings as needed for best longevity.

If your grinder shows sparking at the commutator, loss of power or rough running, this genuine Makita armature assembly will return the motor to factory-like performance for the listed models.

Browse our full range of Makita grinder parts.