Description
Overview:
The X-Ring 21 is a genuine Makita sealing component for heavy-duty hammer drills, supplied under Manufacturer Part Number (MPN) 213980-3. Made from a durable elastomer, it uses an X-profile to provide a secure, low-friction seal within the tool's percussion and drive assemblies. By keeping grease in and dust and debris out, it helps maintain impact performance and extend service life. This ring is designed for specific Makita machines, including HR4511C and HM1203C, ensuring a precise fit and reliable operation during routine maintenance or repair. It is a small part with a big effect on efficiency, helping to prevent leaks, preserve internal components, and keep your hammer drill running smoothly under tough site or workshop conditions.
Key Features:
- Genuine Makita part for assured compatibility and performance (MPN 213980-3)
- X-profile (quad-ring style) seal for improved sealing stability compared to a standard round O-ring
- Helps retain lubrication and prevent oil or grease leaks
- Acts as a barrier against dust and abrasive particles
- Durable elastomer construction for long service in high-vibration tools
- Sized for a proper interference fit in specified Makita housings
- Supports consistent impact energy and drilling efficiency
- Easy to install during routine servicing or overhaul
- Suitable for professional site use and regular DIY maintenance
- Helps reduce premature wear of adjacent components
Typical Applications:
Used during servicing of Makita demolition and rotary hammer drills to restore sealing in the impact mechanism, piston/ram assemblies, or associated sleeves. Ideal when addressing loss of impact power, visible grease seepage, or contamination ingress. Suitable for preventative maintenance to keep tools performing reliably in dusty construction, renovation, and landscaping environments.
Also known as:
X-ring, quad ring, seal ring, sealing ring, gasket, O-ring, packing ring, elastomer seal.
Fits Models:
HM1203C, HM1213C, HM1214C, HR4511C
Alternate Part Numbers:
2139803
