Description
Overview:
This Genuine Hitachi/Hikoki piston ring (OEM No. 6699806) is a precision engine sealing component for Hikoki/Hitachi petrol cutters, including the TCM75EBP and TCM75EAP. Made from a durable, high-strength metal alloy suited to high temperatures and friction, it restores and maintains a tight seal between the piston and cylinder wall. A correct seal helps prevent gas leakage (blow‐by), supports stable compression, and sustains power output and fuel efficiency. As a direct OEM replacement, it is designed to fit and function exactly as the original part, helping keep your cutter reliable on site and during routine maintenance. Ideal for users servicing top ends, addressing power loss, or refreshing worn engine components on compatible Hikoki/Hitachi 2‐stroke cutting machines.
Key Features:
- Genuine Hitachi/Hikoki replacement part for assured fit and performance (OEM 6699806)
- Precision-machined ring profile to help restore compression and starting performance
- Durable, wear-resistant metal alloy designed for high-temperature, high-RPM use
- Helps reduce blow‐by, oiling, and exhaust smoke for cleaner, more efficient running
- Supports consistent power delivery under load during cutting tasks
- Direct swap for the original ring to minimise downtime
- Compatible with the specified Hikoki/Hitachi cutter engines for trouble-free fitting
- Suitable for routine servicing or full top‐end rebuilds to extend machine life
- Stable dimensional accuracy for correct ring end gap when installed to spec
- Practical choice for trades, DIY users, and hire fleets maintaining reliability
Typical Applications:
Used during maintenance and repairs of Hikoki/Hitachi petrol cutters to restore engine compression and performance. Ideal after piston or cylinder work, when power loss or hard starting is noticed, or as preventative servicing to keep cutting equipment dependable for site work, landscaping, and workshop use.
Also known as:
Compression ring, engine piston ring, top ring, cutter piston ring, cylinder ring, 2‐stroke piston ring, power cylinder ring.
Fits Models:
CM 75EAP, CM 75EBP, CM75EAP, CM75EBP, TCM75EAP, TCM75EBP
Alternate Part Numbers:
6699806
Product Specifications
| L&S Part No. | HKK6699806 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hitachi/Hikoki |
| OEM No. | 6699806 |
| Unit of Sale | 1 |
| Applications | CM 75EAP, CM 75EBP, CM75EAP, CM75EBP, TCM75EAP, TCM75EBP |
| Machine Type | Disc Cutters |
| Fits Brands | Hikoki |
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