Description
Overview:
A genuine Atlas Copco spring for LH 11 hydraulic breakers, supplied as OEM No. 3371 8211 78, engineered to restore correct tension and absorb shock within the hammer mechanism. Manufactured from high‐grade spring steel with a protective finish, the coiled compression design resists fatigue and helps cushion impact loads during continuous breaking. By maintaining preload and return force, it supports smoother cycling and reduces stress on mating parts, extending service life in demanding site conditions. Ideal for handheld hydraulic breakers such as the Atlas Copco LH 11 and 180/190 E, it is a direct-fit replacement that supports reliable performance with compatible tools and power packs used across construction, utilities, and maintenance work.
Key Features:
- Genuine Atlas Copco part for assured fit and function
- Direct replacement for OEM No. 3371 8211 78 (cross-ref: 3371821178)
- Durable spring steel construction for long service life under repeated impacts
- Designed to maintain correct tension and absorb shock to protect internal components
- Helps reduce vibration transfer to the tool and operator for steadier operation
- Stable spring rate for consistent breaker performance across duty cycles
- Protective surface finish to resist wear and corrosion in harsh environments
- Precision-made to suit the breaker's housing and guides for reliable seating
- Straightforward installation using standard workshop tools
- Supports reduced downtime and predictable maintenance intervals
Typical Applications:
Used in hydraulic breakers for breaking concrete and asphalt, trenching, road repairs, reinstatement works, demolition tasks, utility installation, and general civil engineering. Suitable for site, plant, and rental fleet maintenance where dependable impact control and smooth cycling of the breaker are needed in daily operation.
Also known as:
Coil spring, compression spring, return spring, hammer spring, percussion mechanism spring, shock absorber spring, breaker body spring. Commonly referenced as a hydraulic breaker spring for Atlas Copco handheld tools.
Fits Models:
180/190 E, 180/190E, 180190E, 220/230 E, 220/230E, 220230E, 270/280 E, 270/280E, 270280E, 390/400 E, 390/400E, 390400E, LH 11, LH11
Alternate Part Numbers:
3371821178
Product Specifications
| L&S Part No. | 3371 8211 78 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Atlas Copco |
| OEM No. | 3371821178 |
| Unit of Sale | 1 |
| Applications | 180/190 E, 180/190E, 180190E, 220/230 E, 220/230E, 220230E, 270/280 E, 270/280E, 270280E, 390/400 E, 390/400E, 390400E, LH 11, LH11 |
| Machine Type | Breakers |
| Fits Brands | Atlas Copco |
