Description
Overview:
The O-Ring (s-26) for Hikoki and Hitachi tools is a Genuine OEM seal designed to maintain pressure and prevent leaks in rotary hammers and rebar cutters. Supplied under Manufacturer Part Number (MPN) 872470, it fits key cordless and corded platforms including DH18DBL and DH36DBDL. Made from a high-grade, oil- and grease-resistant elastomer, this O-Ring provides a tight, reliable seal in pneumatic and hydraulic sections of the tool, helping preserve impact energy and overall efficiency. It is suitable for routine servicing where seals harden, flatten or become damaged through wear. A correct-fit O-Ring reduces downtime, protects internal components from contamination, and supports consistent performance in professional and DIY use.
Key Features:
- Genuine Hikoki/Hitachi OEM part for assured fit and performance
- MPN/OEM No.: 872470 for straightforward identification
- Durable elastomer construction, resistant to oils, greases, and typical jobsite conditions
- Helps maintain pressure and impact efficiency by preventing air and fluid leaks
- Reduces wear on pistons, cylinders, and gear housings by keeping contaminants out
- Direct replacement part for quick, hassle-free maintenance
- Supports tool reliability, especially under frequent or heavy use
- Suitable for both cordless and corded rotary hammers and rebar cutters
Typical Applications:
Used to restore sealing performance in Hikoki/Hitachi rotary hammers and rebar cutters during servicing or repair. Ideal when addressing loss of power, oil seepage, or air leaks. Commonly fitted in piston/ram assemblies, valve blocks, or gear housings to maintain correct operating pressure and extend tool life.
Also known as:
Seal ring, piston seal, hydraulic seal, gasket ring, elastomer ring, O-ring seal. Frequently referred to as a sealing gasket within hammer service kits.
Fits Models:
DH18DBL, DH25PA, DH25PB, DH36DBDL, DH36DBL, DH45ME, DH45MEY, DH52ME, DH52MEY, H60MC, VB16Y, VB3616DA
Alternate Part Numbers:
872470
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