Description
Overview:
The Distance Piece (B) is a genuine Hitachi/Hikoki spacer used within the hammer mechanism to maintain correct spacing and alignment of moving parts. Precision-machined from durable steel with a robust finish, it helps preserve impact efficiency, reduce unwanted play, and support smooth operation under continuous load. Designed for Hitachi/Hikoki demolition hammers, it provides a direct, reliable fit in models such as H41MB2 and H45ME. As a like-for-like replacement for OEM No. 991711, it restores factory-spec clearances after wear. Suitable for professional site work and workshop maintenance, this component is built to handle heavy-duty use and frequent impacts when chiselling, breaking, and point work on concrete, masonry, and similar substrates.
Key Features:
- Genuine Hitachi/Hikoki OEM part for correct fit and dependable performance (OEM No. 991711)
- Precision steel construction for strength and dimensional stability under impact
- Helps maintain internal clearances, improving consistency of blows and tool life
- Engineered for high-load environments typical of demolition hammers
- Direct replacement with straightforward installation following the service manual
- Compatible across a wide range of Hitachi/Hikoki SDS-max and breaker models
- Supports reduced wear on adjacent parts by keeping components correctly spaced
- Suitable for regular maintenance or overhaul to restore performance
- Corrosion-resistant dark finish to withstand site conditions
- Backed by OEM quality control for reliability in professional use
Typical Applications:
Used during servicing or repair of Hitachi/Hikoki demolition hammers to replace worn spacers that affect impact performance. Ideal when overhauling the striker, piston, or gearbox assemblies, addressing symptoms like reduced striking force, excess play, or noise. Suitable for construction, civil engineering, utilities, demolition, and facilities maintenance where breakers are used on concrete, brick, block, and stone.
Also known as:
Spacer, distance spacer, separation piece, shim ring, spacer ring, collar spacer, positioning ring, hammer spacer, internal spacer, OEM distance piece B.
Fits Models:
DH36DMA, DH40MEY, DH40MRY, DH45ME, DH45MEY, DH50MR, DH50MRY, DH52ME, DH52MEY, H41MB2, H41ME, H41SA, H41SA3, H41SE, H45ME, H45MEY, H45MR, H45MRY, H50SA, H55SA, H60ME, H60MEY, H60MR, H60MRV, H65SB2, H65SB3, H65SD2, H65SD3
Alternate Part Numbers:
991711
Product Specifications
| L&S Part No. | HKK991711 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hitachi/Hikoki |
| OEM No. | 991711 |
| Unit of Sale | 1 |
| Applications | DH36DMA, DH40MEY, DH40MRY, DH45ME, DH45MEY, DH50MR, DH50MRY, DH52ME, DH52MEY, H41MB2, H41ME, H41SA, H41SA3, H41SE, H45ME, H45MEY, H45MR, H45MRY, H50SA, H55SA, H60ME, H60MEY, H60MR, H60MRV, H65SB2, H65SB3, H65SD2, H65SD3 |
| Machine Type | Breakers |
| Fits Brands | Hikoki |
| Fits Models | DH36DMA | DH40MEY | DH40MRY | DH45ME | DH45MEY | DH50MR | DH50MRY | DH52ME | DH52MEY | H41MB2 | H45ME | H45MEY | H45MR | H65SB3 | H65SD3 |
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