Description
Overview:
The O-Ring (C) is a genuine Hitachi / Hikoki seal for selected rotary hammer drills, designed to restore and maintain airtight and grease-tight sealing inside the hammer mechanism. Made from durable black rubber, it helps retain pressure in the cylinder, prevents leakage, and supports consistent impact performance under heavy use. This direct replacement suits the Hitachi / Hikoki DH28PC and DH28PD, ensuring a proper fit where the original seal has worn or been damaged. As an OEM component (323058), it matches factory specifications for material, hardness, and dimensions, making it a dependable choice for routine servicing or repairs. Suitable for professional trades and DIY users alike, it is straightforward to install and helps reduce downtime by preventing avoidable failures.
Key Features:
- Genuine Hitachi / Hikoki OEM part for assured fit and performance (323058)
- Durable rubber construction resists wear from vibration, heat, and lubricants
- Maintains internal pressure to support consistent hammering force and efficiency
- Helps prevent air and grease leaks that cause loss of impact power
- Factory-matched profile for reliable seating and sealing in the drill body
- Simple to fit during routine servicing to minimise downtime
- Suitable for heavy-duty use in concrete, masonry, and demolition tasks
- Cost-effective maintenance item that protects more expensive components
Typical Applications:
Used during maintenance or repair of rotary hammer drills to restore sealing around the piston or cylinder assemblies. Ideal when diagnosing reduced impact energy, visible grease seepage, air leaks, or irregular hammer action. Helps maintain performance and extend service intervals in construction, installation, demolition, and general site work.
Also known as:
Seal ring, sealing ring, packing ring, rubber seal, O seal, gasket ring for rotary hammer mechanisms.
Fits Models:
DH28PC, DH28PD, DH30PC2, H25PV
Alternate Part Numbers:
323058
Product Specifications
| L&S Part No. | HKK323058 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hikoki |
| OEM No. | 323058 |
| Unit of Sale | 1 |
| Machine Type | Rotary Hammer |
| Fits Brands | Hikoki |
| Key Features | - Genuine Hitachi / Hikoki OEM part for assured fit (323058) - Compatible with DH28PC, DH28PD, DH30PC2, H25PV models - Durable rubber resists wear from vibration and heat - Maintains pressure to support consistent hammering force - Prevents air and grease leaks, reducing impact power loss |
| Fits Models | DH28PC | DH28PD | DH30PC2 |


