Makita 450737-3 — Motor Sleeve (genuine Makita replacement). Precision-machined metal sleeve that locates and supports the motor/armature inside the motor assembly, restoring correct shaft alignment and reducing play and noise that happen when the original sleeve is worn. This part is a direct-fit replacement listed in Makita parts diagrams and is the exact component you need when repairing the drive/motor area of the tool; it’s a small but critical item among other power tool parts.
Fits: Makita GN900 series (GN900, GN900SE / GN900S) gas framing nailers — shown as item 37 in the GN900 parts breakdown.
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