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USD 404
Part #: BOS0 445 120 027

Bosch 0445120027 New Fuel Injector

Vehicle Fitment:
2004.5-2005 GM 6.6L Duramax LLY | See full application list below
Part #: BOS0 445 120 027
★★★★★ ★★★★★ 1 Reviews
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The Bosch 0445120027 New Fuel Injector from XDP is a direct-fit replacement for the failed injector in your 2004.5-2005 GM 6.6L Duramax LLY. Bosch Fuel Injectors undergo end-of-line testing using the exact OE test specifications and equipment to ensure quality and fitment. This fuel injector is designed as a drop-in replacement to maintain factory fuel system function. Bosch is a leading OE supplier and are the original equipment fuel injection components that were originally equipped on your engine.

Why Do Fuel Injectors Fail? 
Insufficient fuel filtration, fuel contamination, and improper installation are all leading causes of fuel injector failure. The main source of issues in diesel fuel systems is contaminated diesel fuel. Typical contaminants include corrosion from water in the fuel, micro fine particles, and water contamination from improper fuel storage.

How Can I Protect My Fuel Injectors?
It is always best to purchase your fuel from a reputable source. Ensure that your vehicle is equipped with a proper fuel/water separator, and also be sure to follow the manufacturer's service intervals on your filter/water separator (where applicable).

  • Genuine Bosch Component
  • End-Of-Line Function Tested
  • Maintains Original Equipment Function
  • Brand New Fuel Injector
  • Built Utilizing OE Tools & Processes

Vehicle Fitment

2004 Chevrolet Silverado 2500 HD 6.6
2005 Chevrolet Silverado 2500 HD 6.6
2004 Chevrolet Silverado 3500 6.6
2005 Chevrolet Silverado 3500 6.6
2004 GMC Sierra 2500 HD 6.6
2005 GMC Sierra 2500 HD 6.6
2004 GMC Sierra 3500 6.6
2005 GMC Sierra 3500 6.6


  • MPN 0445120027
  • SKU BOS0 445 120 027
  • ID 129622
  • Manufacturer Name Bosch
  • Shipping Weight 1.00 lb.
  • Shipping Length 11 in.
  • Shipping Width 5 in.
  • Shipping Height 3 in.
  • Fuel Type Diesel
  • E-Code 1
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Cross Reference # 0 445 120 027, 0 986 435 504, 0 986 435 504RX, 0445120027, 0986435504, 0986435504RX, 97303657, 97780144
  • Internal L9R0


★★★★★ ★★★★★
5.0/5 Stars out of 1 Reviews
Verified Buyer
LLY Bosch injectors
Recently had an issue after replacing head gaskets and new heads where the truck was slow to build boost with decreased top end power. After running some tests, I found that all of the injectors were weaking and needed to be replaced. Ordered a full set of New Bosch LLY injectors and it fixed my issue and the truck feels brand new again. Would highly recommend these to anyone have similar issues.

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Questions and Answers

Does this injector have a core charge, like the reman from Bosch?
View Staff Answer 
No, the Bosch 0445120027 New Fuel Injector does not have a core charge.

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