Description
Overview:
The Valve Block Seal Kit fits the Atlas Copco LP 9-20 hydraulic power pack and restores sealing integrity within the valve block assembly. It is a genuine Atlas Copco part engineered for a precise fit and reliable performance. The kit typically includes a selection of oil‐resistant elastomer and polymer seals designed to contain hydraulic oil, maintain pressure, and prevent internal and external leaks. By renewing worn seals, it helps stabilise system pressure, improves responsiveness, and supports consistent tool performance. Suitable for workshop servicing or on-site maintenance of portable hydraulic power packs such as the LP 9-20 and LP9-20, it is made for demanding environments where uptime and clean hydraulic operation are essential.
Key Features:
- Genuine Atlas Copco part for assured compatibility and fit
- Restores valve block sealing to reduce leaks and pressure loss
- Durable sealing materials for long service life in hydraulic oil
- Helps protect pumps, valves, and tools from damage due to bypass or contamination ingress
- Supports consistent flow and pressure for stable tool operation
- Straightforward replacement during routine servicing, minimising downtime
- Suitable for professional and DIY maintenance of hydraulic power packs
- Manufactured to OEM tolerances for reliable seating in grooves and ports
- Helps reduce running costs by preventing oil loss and repeated rework
- Supplied to address common wear points within the valve block assembly
Typical Applications:
Used during scheduled maintenance or leak repair on Atlas Copco LP-series hydraulic power packs driving portable tools such as breakers, cut‐off saws, pumps, and drills. Ideal for workshop overhauls before peak usage, or field repairs to restore system tightness, improve control accuracy, and return the unit to safe, efficient operation.
Also known as:
Hydraulic valve block seal kit, valve block overhaul kit, O‐ring and seal service kit, power pack sealing kit, LP‐series hydraulic seal set, valve chest seal kit, hydraulic system reseal kit.
Fits Models:
LP 9-20, LP9-20, LP920
Alternate Part Numbers:
3377800256, 3377 8002 56
Product Specifications
| L&S Part No. | 3377 8002 56 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Atlas Copco |
| OEM No. | 3377800256 |
| Unit of Sale | 1 |
| Machine Type | Hydraulic Packs |
| Key Features | - Fits Atlas Copco LP 9-20 hydraulic power pack - Genuine part ensures precise fit and reliable performance - Oil-resistant elastomer and polymer seals - Reduces leaks and maintains hydraulic pressure - Suitable for workshop or on-site maintenance |

