Hitachi 6688909 Spare Part - GEAR CASE GASKET
Original Hitachi gear‑case gasket — part no. 6688909. This molded gasket is made to form an oil‑tight seal around the hedge‑trimmer gearbox, preventing lubricant leaks and keeping the bevel/drive gears free from debris and premature wear.
Fits a range of Hitachi/Hikoki/ hedge‑trimmer gear cases, commonly used on models such as CH55EB3, CH62EA3, CH66EB3, the CH78 series and many THT/THT2xxx series machines (for example THT2000, THT210SB, THT2510S, THT2520SB).
Easy to install in the existing cover and fastener locations during routine gearbox service — a simple, inexpensive replacement that restores gearbox integrity and stops oil leaks. Backed by the quality you expect from Hitachi parts, this original Hitachi gasket is a practical choice when you need genuine replacement components. Ideal to have on hand among other routine parts for power tools used in garden equipment.
Compatible models this part will fit:
- Hitachi CH50EA3
- Hitachi CH55EB3
- Hitachi CH62EA3
- Hitachi CH66EB3
- Hitachi CH78EB
- Hitachi CH78EC3
- Hitachi CH78ED
- Hitachi H90SG
- Hitachi HTD-2520PF
- Hitachi HTD-2520PFA
- Hitachi HTD-2522PF
- Hitachi HTD-2522PFA
- Hitachi HTD-2522PFB
- Hitachi HTD-2526PF
- Hitachi HTD-2526PFA
- Hitachi HTD-2526PFB
- Hitachi HTD-2530PF
- Hitachi HTD-2530PFA
- Hitachi THB2510
- Hitachi THT-2000SB
- Hitachi THT-2000SLB
- Hitachi THT-2100SB
- Hitachi THT-210SB
- Hitachi THT-240B
- Hitachi THT-2510S
- Hitachi THT-2540
- Hitachi THT2000
