Genuine Makita Motor Housing (part 151743-8) — Motor Housing Complete for Makita belt sanders. This is the original Makita molded motor housing assembly (listed as “MOTOR HOUSING CPL.”) designed to replace a cracked, broken or worn motor case and restore proper alignment and mounting for the motor, brush holders and cord entry on compatible sanders. The housing includes the factory mounting bosses and openings for the brush holders, fan/air path and cord/strain-relief, so it drops in where the original shell did.
Key details:
- Makita part number: 151743-8 (Motor Housing Complete).
- Fits Makita belt sander models in the 9900-series — most commonly the Makita 9903 (3" x 21" belt sander; belt size ≈ 76 × 533 mm). Also referenced as compatible with related models 9920 and 9404. Use this part when the existing housing is damaged, stripped at mounting points, or no longer holds the motor/brush assembly securely.
- Condition: genuine Makita replacement housing. Designed to restore original fit and clearances for the motor, brush holders and screws.
Why choose this part:
- Restores correct alignment and protection for the motor and internal components, preventing rubbing, misalignment or premature brush wear.
- Drop-in replacement with the original mounting geometry so you can reuse original internal parts (armature, field, brushes, fan, cord/strain relief) without modification.
If your Makita 9903 (or a compatible 9900-series sander) has a split or stripped motor shell, replacing it with the original Makita motor housing 151743-8 gets the tool back to proper mechanical alignment and protects the motor internals.
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