Genuine Makita part 261141-9 — "Epoxy washer 2". This molded epoxy insulating/spacer washer fits onto the DC motor shaft/motor sleeve in the GN‑series gas nailers; it positions the motor, provides electrical insulation and axial spacing, and is required when reassembling the motor box after repair.
Fits Makita GN900 (including GN900SE) and is listed in the GN‑series parts/accessory listings that cover related models such as GN420C and GF600, so it's the correct original Makita replacement when that epoxy washer is cracked, missing, or worn.
If your tool has a noisy motor, excessive play on the motor shaft, or electrical arcing near the motor sleeve, replacing part 261141-9 restores proper spacing and insulation quickly — a small, precise part that saves you from replacing larger assemblies. This genuine Makita spare parts item is numbered 261141‑9 on Makita parts lists for the GN series.
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