• Part number: 86679388
• Part weight:
• Product name: Seal (Hydraulic Rock Drill High-Performance Oil-Resistant Seal)
• Applicable equipment: HC20
• Replacement cycle: Mandatory replacement after 800 hours of impact operation
• Core advantages: Genuine OEM, short delivery, competitive price
• Key function: Seals hydraulic components (cylinder joints, valve connections), prevents oil leakage and dust intrusion
In HC20 Hydraulic Rock Drill (or Hydraulic Drifter) systems, the Seal 86679388 is a “critical hydraulic seal”—it’s installed at key interfaces to lock in high-pressure oil (up to 1800 psi) and block debris. Montabert’s 800-hour replacement cycle is based on wear data: after 800 hours, even quality seals lose elasticity (due to oil and vibration), leading to 3-5 liters of monthly oil waste.
| Model | Part No. | Description | Weight/Kg | Qty. | Unit | Alternative Part No. |
|---|---|---|---|---|---|---|
| HC20 | 86686649 | 1 | Pcs | |||
| HC20 | 86668704 | 1 | Pcs | |||
| HC20 | 86677176 | 1 | Pcs | |||
| HC20 | 86250107 | 1 | Pcs | |||
| HC20 | 86221595 | 1 | Pcs | |||
| HC20 | 86679388 | 1 | Pcs | |||
| HC20 | 86687217 | 1 | Pcs | |||
| HC20 | 86668662 | 2 | Pcs | |||
| HC20 | 86639317 | 2 | Pcs | |||
| HC20 | 86668738 | 1 | Pcs | |||
| HC20 | 86668746 | 1 | Pcs | |||
| HC20 | 86668753 | 1 | Pcs | |||
| HC20 | 86634045 | 1 | Pcs | |||
| HC20 | 95421335 | 8 | Pcs | |||
| HC20 | 86600632 | 1 | Pcs | |||
| HC20 | 86580966 | 1 | Pcs | |||
| HC20 | 95303368 | 3 | Pcs | |||
| HC20 | 86668613 | 1 | Pcs | |||
| HC20 | 86677150 | 1 | Pcs | |||
| HC20 | 86639309 | 1 | Pcs | |||
| HC20 | 86668936 | 1 | Pcs | |||
| HC20 | 86668860 | 1 | Pcs | |||
| HC20 | 86668886 | 1 | Pcs | |||
| HC20 | 86684263 | 1 | Pcs | |||
| HC20 | 86676970 | 8 | Pcs | |||
| HC20 | 95303335 | 2 | Pcs | |||
| HC20 | 86668639 | 1 | Pcs | |||
| HC20 | 86668993 | 1 | Pcs | |||
| HC20 | 86669017 | 1 | Pcs | |||
| HC20 | 86685435 | 1 | Pcs | |||
| HC20 | 86668647 | 1 | Pcs | |||
| HC20 | 86668902 | 1 | Pcs | |||
| HC20 | 86221918 | 1 | Pcs | |||
| HC20 | 86669025 | 1 | Pcs | |||
| HC20 | 86281938 | 1 | Pcs | |||
| HC20 | 86668910 | 2 | Pcs | |||
| HC20 | 86668654 | 1 | Pcs | |||
| HC20 | 86318516 | 1 | Pcs | |||
| HC20 | 86668662 | 1 | Pcs | |||
| HC20 | 86420098 | 1 | Pcs | |||
| HC20 | 86668761 | 1 | Pcs | |||
| HC20 | 86668779 | 1 | Pcs | |||
| HC20 | 86668928 | 8 | Pcs | |||
| HC20 | 95303335 | 1 | Pcs | |||
| HC20 | 86262698 | 2 | Pcs | |||
| HC20 | 86676863 | 1 | Pcs | |||
| HC20 | 86267069 | 2 | Pcs | |||
| HC20 | 86684271 | 1 | Pcs | |||
| HC20 | 86668795 | 1 | Pcs | |||
| HC20 | 86668829 | 1 | Pcs | |||
| HC20 | 86325792 | 1 | Pcs | |||
| HC20 | 86677184 | 1 | Pcs | |||
| HC20 | 86677192 | 1 | Pcs | |||
| HC20 | 86668811 | 1 | Pcs | |||
| HC20 | 86668944 | 1 | Pcs | |||
| HC20 | 86676822 | 1 | Pcs | |||
| HC20 | 86625175 | 1 | Pcs | |||
| HC20 | 86668951 | 1 | Pcs | |||
| HC20 | 86678224 | 1 | Pcs | |||
| HC20 | 86666351 | 1 | Pcs | |||
| HC20 | 86676889 | 1 | Pcs | |||
| HC20 | 86676897 | 1 | Pcs |
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