Hikoki / Hitachi HIT6686121 Piston Ring OEM Replacement For CG27EAS CH27EPA CH27EPAP

Hikoki / Hitachi HIT6686121 Piston Ring OEM Replacement For CG27EAS CH27EPA CH27EPAP

This is a genuine Hitachi / HiKoki piston ring, part number HIT6686121, listed as a component for multiple garden tool engine models.

This piston ring is essential for maintaining cylinder compression, reducing blow‑by gases, and ensuring smooth engine operation. Use it during rebuilds or regular maintenance to restore performance and minimize smoking or power loss.

Please see Below for all Compatible Models