Original Makita exhaust cover — part 345984-8 — designed to replace the factory rear exhaust shroud on compatible pneumatic nailers.
This genuine Makita cover fits models in the GN900 / GN900SE and GN420C matching the factory mounting points and shape so it installs cleanly without modification.
Made as the factory-style replacement, it shields the exhaust outlet and nearby components from debris while maintaining correct exhaust direction and tool clearance; it’s supplied as the same single replacement piece shown in Makita parts diagrams. As with other Makita parts, it’s sized and formed to the original contours for a direct-fit repair.
If you need a dependable, original Makita replacement to get a nailer back to service, part 345984-8 is the correct exhaust cover specified for the GN900 / GN420 family. This is a standard power tool parts item intended to restore the tool’s original fit and function.
Jump straight to the Makita spare parts diagrams:
