Genuine Makita 150978-8 — Tension Roller Complete (replacement for belt sander tracking and tension). This metal roller assembly restores correct belt tension and stable tracking to your Makita belt sander, reducing belt slip, vibration and uneven sanding for smoother, more consistent results.
Fits the Makita 9403 4" x 24" (≈102 × 610 mm) belt sander and compatible MT940-style models — a direct-fit, genuine Makita part designed to drop in without modification.
Lightweight and compact (listed around 0.5 lb / ~227 g), the 150978-8 tension roller complete comes as the full roller assembly so you won’t need extra components to replace a worn idler. This genuine Makita part is ideal if your sander’s belt wanders, slips, or tracks poorly. Makita parts.
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