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Bosch 0445117021 Fuel Injector
Overview of Bosch Common Rail Injector (New) 0445117021
The Bosch Common Rail Injector (New) 0445117021 is designed for direct injection diesel engines, specifically compatible with Audi A8 Quattro and Volkswagen Touareg models. This premium replacement fuel injector ensures precise fuel delivery for optimal engine performance.
- Premium replacement fuel injector for diesel engines
- Direct injection type with OE injector plug
- Includes one fuel injector O-ring
- Package contains one diesel fuel injector
- Compatible with Audi A8 Quattro and Volkswagen Touareg
- 12 months warranty covering unlimited miles and hours (non-commercial use)
- Cases per pallet: 44 units
- Unit quantity per vehicle: 6 injectors
Details on Bosch Common Rail Injector (New) Product Line
The Common Rail Injector (New) product line by Bosch focuses on delivering precise fuel metering for modern diesel engines using direct injection technology. This line is engineered to meet stringent OEM specifications, providing reliable performance and durability. The 0445117021 injector is part of this line, designed to maintain efficient combustion and reduce emissions in compatible Audi and Volkswagen diesel vehicles.
Product Description and Features
The Bosch 0445117021 fuel injector is a direct injection type injector that comes with an OE-style plug for seamless integration with the vehicle’s existing wiring harness. It includes one fuel injector O-ring to ensure a proper seal and prevent leaks. This injector is a premium replacement part, intended to restore the fuel injection system’s accuracy and reliability. It is packaged individually, allowing for replacement of a single injector as needed. The injector is designed for use in diesel engines found in Audi A8 Quattro and Volkswagen Touareg models, supporting six injectors per vehicle for full system replacement.
Common Applications and Issues Addressed
- Restores proper fuel delivery in Audi A8 Quattro and Volkswagen Touareg diesel engines
- Resolves rough idling and engine misfires caused by faulty injectors
- Improves fuel efficiency by ensuring accurate fuel atomization
- Reduces excessive exhaust smoke linked to injector malfunction
- Helps maintain engine power and responsiveness
Installation Notes and Tips
When installing the Bosch 0445117021 fuel injector, ensure the injector O-ring is properly seated to prevent fuel leaks. It is recommended to replace all six injectors on the vehicle simultaneously for balanced fuel delivery and consistent engine performance. Use appropriate tools to avoid damage to the injector or fuel rail during installation. Verify electrical connections match the OE plug type for proper injector operation.
Quality Assurance and Warranty
This Bosch fuel injector comes with a 12-month warranty covering unlimited miles and hours for non-commercial use, providing assurance of its durability and performance. Manufactured to meet OEM standards, the 0445117021 injector undergoes rigorous testing to ensure reliability in demanding diesel engine applications.
| Brand | Bosch |
| Part Number | 0445117021 |
| Position | Common Rail Injector (New) |
| Cases Per Pallet (ORLY) | 44 |
| Fuel Injector O-Rings Included | 1 |
| Fuel Injector Type | Direct injection |
| Injector Plug Type | Oe |
| Item Grade | Premium replacement |
| Package Contents | 1 diesel fuel injector |
| Package Quantity | 1 |
| Unit(s) per Car Qty (ORLY) | 6 |
| Warranty | 12 months/unlimited miles/unlimited hours (non-commercial) |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2014 | Audi | A8 Quattro | 3.0L | V6 | N/A | One per cylinder; with Lower Injector O-Ring; Common Rail Injector (New) |
| 2014 | Audi | A8 Quattro | 3.0L | V6 | N/A | Actual OE part; Combustion chamber seal ring pre-assembled at injector; One per cylinder; Common Rail Injector (New) |
| 2013 | Volkswagen | Touareg | 3.0L | V6 | N/A | One per cylinder; with Lower Injector O-Ring; Common Rail Injector (New) |
| 2013 | Volkswagen | Touareg | 3.0L | V6 | N/A | Actual OE part; Combustion chamber seal ring pre-assembled at injector; One per cylinder; Common Rail Injector (New) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.