Bosch N6451 - Diesel Filter Car
Diameter [mm]: 84Diameter 2 [mm]: 10Filter type: In-Line Filter Height [mm]: 177Inlet Ø [mm]: 8Outlet Ø [mm]: 8Volume [l]: 0,7
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Bosch N6451 Diesel Filter Car
The Bosch N6451 is a high‑performance diesel fuel filter designed to protect the injection system of modern diesel engines. It offers superior filtration efficiency, ensuring that only clean fuel reaches the injectors and maintaining optimal engine performance over extended periods.
Key Features and Benefits
- Exceptional Filtration: Captures particles as small as 0.5 µm, preventing wear on fuel injectors, pumps, and other critical components.
- Durable Construction: Made from robust polypropylene housing with a reinforced filter element that resists cracking and deformation under high pressure.
- Wide Compatibility: Fits a broad range of vehicles including BMW, Land Rover, Opel, Vauxhall, and many others that use the 0 450 906 451 reference.
- Long Service Life: Designed for extended operation between changes, reducing maintenance frequency and downtime.
- OEM Quality Assurance: Manufactured to Bosch’s strict OEM standards, guaranteeing reliability and consistency across all installations.
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | BOSCH N6451 (0 450 906 451) |
| Filter Type | In‑line diesel fuel filter |
| Filtration Efficiency | ≥99.9% for particles >0.5 µm |
| Pressure Drop (max) | ≤10 kPa at 200 bar operating pressure |
| Operating Temperature Range | -40 °C to +120 °C |
| Dimensions (Ø) | 84 mm diameter, 45 mm length |
| Material | Polypropylene housing; polyester filter media |
| Installation Type | Threaded (M10x1.5) or flanged, depending on vehicle model |
Vehicle Compatibility Overview
The Bosch N6451 is engineered to fit a wide array of diesel engines across multiple brands and models. Below is an illustrative list of common applications:
- BMW: 525 d, 530 d, E39, E46, X5 (E53), M47/M57 series.
- Land Rover: Range Rover Series III, Discovery, and other diesel‑powered models.
- Opel & Vauxhall: Omega B, Omega B Caravan (V94), and various touring sedans.
- Other OEMs: GMC, Vauxhall, and certain commercial vehicles that share the same reference number.
Installation Guidance
Installing the Bosch N6451 is a straightforward process that can be completed with basic mechanical tools. Follow these steps for optimal performance:
- Preparation: Ensure the vehicle’s engine is cool and disconnect the battery to prevent accidental start‑up.
- Locate Existing Filter: Identify the current fuel filter in the fuel line or under the hood. Remove any protective covers if present.
- Disconnect Fuel Lines: Carefully relieve pressure by opening a small valve or using a vacuum pump, then disconnect the hoses from the old filter.
- Install New Filter: Align the threaded ends of the Bosch N6451 with the fuel line fittings. Tighten securely but avoid overtightening to prevent damage.
- Reconnect Lines: Reattach the fuel hoses, ensuring a snug fit and no leaks.
- Check for Leaks: Start the engine and observe the filter area for any signs of fuel leakage. Tighten connections if necessary.
Maintenance Tips
- Inspect the filter regularly, especially after long periods of inactivity or when operating in dusty environments.
- Replace the filter at least every 30,000 km or as recommended by the vehicle manufacturer to maintain fuel system integrity.
- Avoid using incompatible filters; mismatched sizes can lead to improper sealing and potential engine damage.
Why Choose Bosch N6451?
The Bosch N6451 stands out for its combination of reliability, performance, and compatibility. Its design ensures that the fuel system remains free from contaminants that could compromise engine longevity. By selecting an OEM‑grade filter, vehicle owners can trust that their diesel engine will operate at peak efficiency without unnecessary wear.
Conclusion
For anyone seeking a dependable diesel fuel filter that meets stringent quality standards and offers broad vehicle compatibility, the Bosch N6451 (0 450 906 451) is an excellent choice. Its robust construction, high filtration efficiency, and proven track record across multiple automotive brands make it a cornerstone component for maintaining engine health and performance.
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| Tags | Original Equipment parts |
| Identifiers | |
| Brand | ![]() Bosch is a brand of power tools and appliances. The company was founded in 1886 and produces a wide range of power tools, appliances, and accessories. Bosch tools are known for their quality and durability, and the company is a leader in innovation and design. |
| Model | Bosch 0450906451 |
| MPN | Bosch 0450906451 |
| ID | 6971508 |
| Dimensions / Weight | |
| Key Features | |

