Hitachi 6686121 Spare Part - PISTON RING
Genuine Hitachi piston ring (part number 6686121) — direct replacement ring for small two‑stroke brushcutter/strimmer engines. Reliable when worn rings have caused low compression, heavy smoking or loss of power, this precision-formed ring seats into the piston groove to restore cylinder sealing and combustion efficiency.
Example compatible models include Hitachi/Hikoki/Tanaka trim/brushcutter engines such as CG27EASP, CG27EAS, CG27EAP (and CG27EAP2 variants), CH27EPA and related CH/CG 27-series engines
Straightforward to install during a top‑end service — inspect the piston and cylinder for wear, verify ring end‑gap in the bore, and replace the ring as part of a compression restoration service. If you prefer genuine Hitachi parts for repairs, this ring is the direct match for the listed models.
Compatible models this part will fit:
- Hitachi CG27EA2
- Hitachi CG27EAS
- Hitachi CG27EBD
- Hitachi CG27EBS
- Hitachi CG27EAP2
- Hitachi CG27EASP
- Hitachi CG27EBDP
- Hitachi CG27EBSP
- Hitachi CH27EPA
- Hitachi CH55EPC
- Hitachi CH27EPAP
- Hitachi CS25EPB
- Hitachi CS27EPA
- Hitachi CS27EPAP
- Hitachi DW25EG
- Hitachi DW25EF
- Hitachi TBC-260PFL
- Hitachi TBL7800R
- Hitachi TCG24EBSP
- Hitachi TCG27EAP2
- Hitachi TCG27EAS
- Hitachi TCG27EASP
- Hitachi TCG27EBD
- Hitachi TCG27EBDP
- Hitachi TCG27EBS
- Hitachi TCH22EPAP
- Hitachi TCH27EPA
- Hitachi TCS-3350S
- Hitachi TCS27EPA
- Hitachi TED-262R
Showing first 30 compatible models. Contact us for full compatibility info.
