Makita 515661-8 Spare Part - ARMATURE ASSY 110V HR2440/245

Makita part 515661-8 — Armature Assembly (110V)

Description:

This is the original Makita armature assembly (the rotor/commutator/shaft assembly) used in the motor of Makita SDS‑Plus rotary hammer drills. It’s the rotating core that the brushes contact; replacing a worn or damaged armature restores motor speed, torque and impact performance when the drill is slow, smoking, making excessive electrical noise, or losing power.

What you’re getting:

- Complete armature/rotor assembly (commutator and shaft pre‑assembled for drop‑in replacement).

- 110V variant specified for the models listed below.

Compatible models (examples):

Commonly listed fitment includes Makita HR2440 and the HR2450 series — HR2450, HR2450T and related HR2450F/HR2450FT models. Use the machine’s model plate to confirm match before installing.

Repair notes:

- This part directly replaces a failed rotor/commutator; when fitting, inspect the carbon brushes and the field (stator) for wear — brushes and the field are inexpensive but often need replacing at the same time to avoid rapid repeat failure.

- Basic motor disassembly and reassembly skills required; keep track of bearings and spacing shims during removal.

Identifier:

Makita part number 515661-8 (original Makita armature assembly, 110V).

(Description based on Makita spare‑parts listings and parts breakdowns for the HR2440/HR2450 series.)