Genuine Makita seal ring (part no. 421810-6) — a small rubber sealing ring used in the gear/cover assembly of several Makita hammer/percussion drills.
This rubber seal sits in the gear-housing cover to retain grease and keep dust and debris out of the transmission — an exact-fit replacement when the original seal has hardened or torn.
Fits models including DP4011, HP2050, HP2050F, HP2051, HP2051F, HP2070, HP2070F and HP2071/HP2071F, so it’s a convenient spare when you’re repairing those Makita hammer drills and need reliable power tool parts.
Sold as the individual genuine Makita seal ring, ready to install when you remove the gear housing cover — simple to replace and restores proper sealing of the gearbox.
Jump straight to the Makita spare parts diagrams:
Browse our full range of Makita drill parts. Makita hammer drill parts.
