Description
BOSCH 0445120027 NEW COMMON RAIL INJECTOR – GM® 6.6L DURAMAX LLY
The Bosch 0445120027 common rail injector is designed for 2004-2005 GM® 6.6L Duramax LLY diesel engines requiring OE-level fuel delivery performance and reliability.
Bosch® was the original equipment supplier for the LLY Duramax injector platform, and this injector is manufactured to updated production standards and engineering tolerances to support long-term diesel engine performance.
Duramax common rail injectors operate under extremely high fuel pressure and precise timing requirements. A worn or failing injector can lead to rough idle, excessive smoke, injector balance rate issues, hard starting, fuel knock, poor fuel economy, or loss of power.
Each injector is end-of-line tested using OE-equivalent equipment and procedures to verify injection timing, fuel delivery, and leakage performance before shipment.
Features & Benefits
- New Bosch® common rail injector
- Designed for GM® 6.6L Duramax LLY applications
- Manufactured using OE tooling and processes
- End-of-line tested to OE-equivalent specifications
- Helps restore proper fuel delivery and injector balance performance
- Supports improved drivability and engine operation
- Manufactured with updated engineering revisions
- Designed for demanding diesel environments
Common Symptoms of a Failed Injector
- Rough idle
- Hard starting
- Excessive smoke
- Fuel knock
- Injector balance rate issues
- Poor fuel economy
- Engine misfires
- Loss of power
Included in the Box
- 1x New Fuel Injector
- 1x Chamber Nozzle Tip Gasket
Specifications
- Brand: Bosch
- Part Number: 0445120027
- Condition: New
- Product Type: Common Rail Fuel Injector
- Gross Weight: 1.7857 LB
- Country of Origin: Germany
- UPC: 165143558928
- Reference Number: BOS11824
Compatible Applications
Fits select:
- 2004-2005 Chevrolet® Silverado 2500 (6.6L Duramax LLY)
- 2004-2005 Chevrolet® Silverado 3500 (6.6L Duramax LLY)
- 2004-2005 GMC® Sierra 2500 (6.6L Duramax LLY)
- 2004-2005 GMC® Sierra 3500 (6.6L Duramax LLY)
⚠ Please verify fitment using your vehicle information, VIN, and part number before purchase.
Cross Reference Numbers
For identification and compatibility reference only:
0 445 120 027, 0 986 435 504, 0 986 435 504RX, 0445120027, 0-445-120-027, 0986435504, 0-986-435-504, 0986435504RX, 0-986-435-504RX, 2411300005, 241-130-0005, 2900714000, 2-90071-400-0, 2J102, 2J-102, 732501, 732-501, 7838GN, 7838-GN, 8973036572, 8-97303-657-2, 90071400, 97303657, 97780144, AP55504, DA2251041, DE665, DT660002R, DT97303657R, EX631046, FJ489, FJ-489, R986435504
Warranty
Warranty Coverage:
- 12 Month Unlimited Mileage Warranty
Warranty applies against manufacturing defects in material and workmanship.
California Diesel Note
California Diesel supplies diesel fuel system and engine-related components for light-duty, medium-duty, and heavy-duty diesel applications. We focus on practical support, dependable inventory, and diesel-focused service for repair shops, fleets, and diesel professionals.
Legal Compliance
⚠ Legal Compliance: This product is not endorsed by or affiliated with Chevrolet®, GMC®, Duramax®, General Motors®, or any other brand mentioned. Trademarks are used only for compatibility and identification purposes.
⚠ California Proposition 65 Warning: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
Estimate shipping