Description
Overview:
This clutch assembly is a genuine Hitachi/Hikoki replacement part designed to restore smooth drive engagement on selected petrol-powered tools. Supplied under OEM number 6688494 and replacing 277-0634f-91, it is manufactured from durable metal for reliable performance under load. The clutch transfers engine power to the gearbox or cutting/drilling attachment, helping prevent slippage and overheating while maintaining consistent tool operation. It is suitable for a range of Hitachi/Hikoki models used in construction and garden work, including the DW25EA drill and TED-210S. Built for longevity and accurate fitment, it supports routine maintenance and repairs where the original clutch shows signs of wear, glazing, or reduced engagement. This is a Genuine Part for assured compatibility and performance.
Key Features:
- Genuine Hitachi/Hikoki part (OEM 6688494) replacing 277-0634f-91
- Robust metal construction for long service life in demanding conditions
- Direct-fit replacement for accurate alignment and dependable engagement
- Helps maintain efficient power transfer and protects engine and gearbox components
- Suitable across multiple compatible drills and hedge trimmers for streamlined spares management
- Stable performance under heavy-duty use common on site and in grounds care
- Designed for straightforward installation with standard workshop tools
- Consistent operation helps reduce vibration and clutch slip when correctly installed and maintained
Typical Applications:
Used to replace worn or slipping clutches on compatible Hitachi/Hikoki petrol drills and hedge trimmers. Common in site drilling, fencing, landscaping, grounds maintenance, and general tool servicing where reliable torque transfer and safe engagement are required for daily use.
Also known as:
Drill clutch assembly, clutch unit, engine clutch, tool clutch, replacement clutch for Hitachi/Hikoki tools, OEM clutch 6688494, replaces 277-0634f-91.
Fits Models:
CH105EC, CH50EA3, CH55EB3, CH62EA3, CH66EB3, CH78EB, CH78EC3, CH78ED, DW25EA, HTD-2522PF, HTD-2522PFB, HTD-2530PFB, HTS-2530PF, TED-210S, TED-250DLS, TED210S, THT-2000SB, THT-2000SLB, THT-2100SB, THT-210SB, THT-240B, THT-2510S, THT-2520SB, THT-2530, THT-2540, THT2000, THT240B, THT2530, THT2540
Alternate Part Numbers:
6688494
Product Specifications
| L&S Part No. | HKK6688494 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hitachi/Hikoki |
| OEM No. | 6688494 |
| Unit of Sale | 1 |
| Applications | CH105EC, CH50EA3, CH55EB3, CH62EA3, CH66EB3, CH78EB, CH78EC3, CH78ED, DW25EA, HTD-2522PF, HTD-2522PFB, HTD-2530PFB, HTS-2530PF, TED-210S, TED-250DLS, TED210S, THT-2000SB, THT-2000SLB, THT-2100SB, THT-210SB, THT-240B, THT-2510S, THT-2520SB, THT-2530, THT-2540, THT2000, THT240B, THT2530, THT2540 |
| Machine Type | Drills |
| Fits Brands | Hikoki |
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