Description
Overview:
The O Ring N394408 is a genuine DeWalt sealing ring for selected rotary hammer drills. Made from durable black rubber, it provides a tight, reliable seal that helps prevent leaks and maintain internal pressure within the tool's mechanism. This supports consistent hammer action and protects internal components from dust and debris. It is designed for correct fit and performance in DeWalt machines, including the D25333K Type 2 and D25334K, making it a dependable replacement during routine servicing or repairs. Fitting a fresh O ring restores sealing performance, helps reduce downtime, and extends tool lifespan, especially in demanding site conditions where vibration, impact and contaminants can quickly wear out seals. This is a Genuine DeWalt part for assured quality and compatibility.
Key Features:
- Genuine DeWalt part (N394408) for assured fit and performance
- High-quality rubber construction for durability under vibration and impact
- Maintains internal sealing to prevent leaks and preserve tool performance
- Helps protect internal components from dust, grease loss, and moisture ingress
- Supports stable hammering action and consistent pressure in the mechanism
- Suitable for scheduled maintenance and straightforward like-for-like replacement
- Compatible with several DeWalt rotary hammer models for efficient stock holding
- Compact, lightweight component for quick installation with minimal downtime
Typical Applications:
Used during servicing of DeWalt rotary hammers to replace worn or damaged seals that can cause grease loss, reduced impact performance, or contamination inside the mechanism. Ideal for preventative maintenance on site or in the workshop to keep tools operating efficiently, reduce performance drop-off, and avoid premature wear of moving parts in heavy-duty drilling and chiselling tasks.
Also known as:
Seal ring, sealing ring, rubber gasket, O-ring seal, toroidal seal. Commonly referenced as a tool seal for rotary hammers and SDS mechanisms where a compact elastomer ring is required to provide an airtight/grease-tight seal in grooves and housings.
Fits Models:
D25333K, D25334K, DCG333, DCH283, DCH293, DCH323, DCH333, DCH334
Alternate Part Numbers:
N394408
Product Specifications
| L&S Part No. | N394408 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | DeWalt |
| OEM No. | N394408 |
| Unit of Sale | 1 |
| Machine Type | Hammer Drill |
| Fits Brands | DeWalt |
| Key Features | - Genuine DeWalt part ensures correct fit and performance - Durable black rubber construction withstands vibration and impact - Maintains internal sealing to prevent leaks and preserve performance - Compatible with DeWalt models D25333K, D25334K, and others - Protects internal components from dust, grease loss, and moisture ingress |
| Fits Models | DCH283 | DCH283 Type 1 | D25333K | D25333K Type 2 | D25334K | D25334K Type 2 | DCH293 | DCH323 | DCH323 Type 1 | DCH333 | DCH334 | DCH334 Type 1 |

