Description
Overview:
This genuine Hikoki/Hitachi O‐Ring (OEM No. 325297) is a replacement sealing ring for rotary hammers. Made from hard‐wearing black rubber, it creates a tight seal within the hammer's internal assemblies to prevent air, grease and dust leaks. By maintaining correct sealing, the tool can deliver consistent impact energy and run smoothly under load. The inner diameter is 27.2 mm (1.07 inches), sized for use in specific Hikoki/Hitachi mechanisms. It is suitable for routine servicing or fault repairs on popular rotary hammer models, including the DH 45MR and H 45MRY. A sound seal helps protect internal parts, reduces wear, and supports long service life, making this O‐Ring a practical choice for both site work and workshop maintenance.
Key Features:
- Genuine Hikoki/Hitachi part for assured fit and performance (OEM No. 325297)
- Inner diameter: 27.2 mm (1.07 inches) for precise location in the seal groove
- Durable rubber construction designed to withstand tool lubricants and vibration
- Helps prevent grease loss and dust ingress to protect internal components
- Supports consistent impact performance and efficient operation
- Suitable for scheduled maintenance or quick repairs to reduce downtime
- Straightforward to fit when following the manufacturer's service procedure
- Compatible with selected DH and H‐series rotary hammers for reliable sealing
Typical Applications:
Used during overhaul or routine servicing of rotary hammers to restore sealing in piston, striker or gearbox chambers. Fit this O‐Ring when you notice grease seepage, loss of impact power, or after disassembly for cleaning. Ideal for workshop maintenance and on‐site repairs to keep tools operating safely and efficiently.
Also known as:
Seal ring, gasket ring, rubber seal, O‐seal, percussion mechanism seal, impact system seal, tool sealing ring, hammer seal, service O‐ring.
Fits Models:
DH 45MR, DH45MR, H 45ME, H 45MEY, H 45MRY, H45ME, H45MEY, H45MRY
Alternate Part Numbers:
325297
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