Description
Product Overview
The Bosch diesel fuel injector is a genuine OEM component engineered to meet the exact specifications of modern diesel engines. Constructed from high‑grade materials, it delivers precise fuel metering, consistent spray patterns, and long‑term durability. Key specifications include a diesel fuel type, vehicle‑specific fit, OEM part number 3 949 744, and a compact size of 21 × 6 × 4 inches weighing 6 lb. This part replaces the original injector seamlessly, restoring the engine’s fuel delivery system to factory performance.
Usage
Designed for diesel‑powered trucks, vans, and heavy‑duty vehicles, this injector is ideal for both professional mechanics and DIY enthusiasts. Install it during routine maintenance, after a failed injector, or when rebuilding the fuel system. The vehicle‑specific design eliminates guesswork, ensuring a direct bolt‑on fit that reduces installation time and prevents leaks. 
Why Choose Us
Choosing this Bosch OEM injector guarantees authenticity, quality, and compatibility. Bosch’s rigorous testing and manufacturing standards provide confidence in performance and longevity. Each unit is backed by a warranty and comes with the original part number, ensuring it matches the vehicle’s engineering requirements. Our supply chain guarantees that you receive a brand‑new component, not a refurbished or aftermarket substitute.
Key Features
- Exact vehicle‑specific fit eliminates modification needs
- High‑precision fuel delivery for optimal engine efficiency
- Durable construction resists wear and high‑temperature environments
- OEM part number 3 949 744 ensures factory‑grade quality
- Easy installation reduces labor time and service costs
FAQ
Is this injector compatible with all diesel engines?
No, it is a vehicle‑specific part. Verify the OEM part number 3 949 744 matches your vehicle’s specifications before purchase.
Can I install the injector myself?
Yes, the injector is designed for a direct bolt‑on fit. However, proper tools and adherence to torque specifications are essential for optimal performance.
What warranty does Bosch provide?
Bosch offers a limited warranty that covers manufacturing defects. Refer to the warranty card included with the product for details.
How does this injector improve engine performance?
By delivering precise fuel amounts at the correct timing, the injector enhances combustion efficiency, reduces emissions, and restores power lost due to a faulty injector.
Do I need to replace other fuel system components when installing this injector?
While not always required, it is recommended to inspect fuel lines, filters, and seals during replacement to ensure the entire system remains in optimal condition.





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