• Part No.: 86668670
• Part Weight:
• Product Name: Rear Cover (Hydraulic Rock Drill Rear Cover)
• Applicable Eqpt: HC25 Hydraulic Rock Drill/Drifter
• Replacement: Replace when cracked/groove worn (long-term use)
• Core Advantages: Genuine OEM, Short Delivery, Competitive Price
• Key Function: Protect rear parts (motor/valve), seal hydraulic ports from oil leak
The Rear Cover 86668670 protects critical rear components (motor, valve group) of HC25 Hydraulic Rock Drills and seals hydraulic ports to prevent leakage. Generic rear covers are often made from thin steel (≤6mm) that deforms within 1800-2200 hours, compromising sealing. This OEM cover uses thick alloy steel (≥8mm) for structural rigidity and features precision-machined 密封槽 (tolerance ±0.002mm) to fit perfectly. Its impact-resistant design withstands mine debris, requiring replacement only if cracked or seal grooves wear out.
| Model | Part No. | Description | Weight/Kg | Qty. | Unit | Replacement Part No. |
|---|---|---|---|---|---|---|
| HC25 | 86714383 | Carter | 1 | pcs | ||
| HC25 | 86714466 | Cylinder | 1 | pcs | ||
| HC25 | 86250107 | Drive component | 1 | pcs | ||
| HC25 | 86221595 | Drive component | 1 | pcs | ||
| HC25 | 86679388 | Seal | 1 | pcs | ||
| HC25 | 86715489 | Upper cylinder | 1 | pcs | ||
| HC25 | 86624160 | Pin | 1 | pcs | ||
| HC25 | 86715414 | Strike piston | 1 | pcs | ||
| HC25 | 86715422 | Distributor | 1 | pcs | ||
| HC25 | 86714490 | Upper flange | 1 | pcs | ||
| HC25 | 86770898 | O'ring | 1 | pcs | ||
| HC25 | 86255700 | O'ring | 1 | pcs | ||
| HC25 | 86797032 | O'ring | 1 | pcs | ||
| HC25 | 86796281 | Diaphragm kit | 1 | pcs | ||
| HC25 | 86600632 | Valve | 1 | pcs | ||
| HC25 | 86580966 | Threaded plug | 1 | pcs | ||
| HC25 | 95421335 | socket head screw | 12 | pcs | ||
| HC25 | 95303368 | Adaptor | 1 | pcs | ||
| HC25 | 95303384 | Adaptor | 2 | pcs | ||
| HC25 | 86715448 | Push | 1 | pcs | ||
| HC25 | 86418357 | Plug | 1 | pcs | ||
| HC25 | 86632916 | Plug | 2 | pcs | ||
| HC25 | 86263233 | Plug | 2 | pcs | ||
| HC25 | 86247723 | Plug | 1 | pcs | ||
| HC25 | 86697083 | Hydraulic motor | 1 | pcs | ||
| HC25 | 86668670 | Rear cover | 1 | pcs | ||
| HC25 | 86715430 | Piston cover | 1 | pcs | ||
| HC25 | 86668860 | Thrust | 1 | pcs | ||
| HC25 | 86668886 | Ring | 1 | pcs | ||
| HC25 | 86712403 | Ring | 1 | pcs | ||
| HC25 | 86684263 | Seal | 1 | pcs | ||
| HC25 | 86668696 | Motor shaft | 1 | pcs | ||
| HC25 | 86350857 | O'ring | 1 | pcs | ||
| HC25 | 95234712 | UNF1/2", socket head screw | 8 | pcs | ||
| HC25 | 86548609 | M12, socket head screw | 4 | pcs | ||
| HC25 | 86330107 | Adaptor | 2 | pcs | ||
| HC25 | 86420098 | O'ring | 1 | pcs | ||
| HC25 | 86247723 | Plug | 2 | pcs | ||
| HC25 | 86715455 | Front guide | 1 | pcs | ||
| HC25 | 86736311 | Ring | 1 | pcs | ||
| HC25 | 86582558 | Snap ring | 1 | pcs | ||
| HC25 | 86715943 | UNF1/2", hexa. screw | 8 | pcs | ||
| HC25 | 86467032 | Washer | 8 | pcs | ||
| HC25 | 86715463 | Ring | 1 | pcs | ||
| HC25 | 95303335 | Adaptor | 1 | pcs | ||
| HC25 | 86726734 | Seal kit | 1 | pcs | ||
| HC25 | 86728698 | Front cover | 1 | pcs | ||
| HC25 | 86267069 | O'ring | 2 | pcs | ||
| HC25 | 86684271 | Seal | 1 | pcs | ||
| HC25 | 86733243 | Retainer socket | 1 | pcs | ||
| HC25 | 86732526 | O'ring | 1 | pcs | ||
| HC25 | 86732575 | Spline shank+Ring | 1 | pcs | ||
| HC25 | 86624160 | Pin | 1 | pcs | ||
| HC25 | 86796018 | Shank stop | 1 | pcs | ||
| HC25 | 86473303 | O'ring | 1 | pcs | ||
| HC25 | 86715554 | Lip seal | 1 | pcs | ||
| HC25 | 86676822 | Roller thrust | 1 | pcs | ||
| HC25 | 86676889 | Ring | 1 | pcs | ||
| HC25 | 86247723 | Plug | 1 | pcs | ||
| HC25 | 86488475 | Plastic plug | 1 | pcs | ||
| HC25 | 86751831 | Control gauge kit | 1 | pcs | ||
| HC25 | 86794393 | Seals kit | 1 | pcs | ||
| HC25 | 86726734 | Seals kit | 1 | pcs | ||
| HC25 | 86668944 | O'ring | 1 | pcs |
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