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USD 299.99
Part #: KN57-3047

K&N AirCharger Intake System 57-3047

2004.5-2005 6.6L Duramax (LLY)
Part #: KN57-3047
★★★★★ ★★★★★ 1 Reviews
$349.99 $299.99
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The K&N AirCharger Intake System 57-3047 from XDP is designed to increase the power in your 2004.5-2005 GM 6.6L Duramax LLY. A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine and provides a guaranteed increase in horsepower and torque. This cold air kit is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes.

  • Guaranteed To Increase Horsepower And Torque
  • Roto-Molded HDPE Intake Tube Paired With Oversized Oiled Cotton Air Filter
  • Engineered To Provide High Airflow And Exceptional Filtration
  • Replaces Factory Air Filter And Intake Tube
  • Filter Only Requires Cleaning Every 100,000 Miles Under Normal Highway Driving Conditions
  • Typical Installation Can Be Completed In 90 Minutes Or Less With Simple Hand Tools
  • No-Hassle Lifetime Limited Warranty
  • Will Not Void Vehicle Warranty

57-3047 Product Specifications:
Estimated Horsepower Gain: 20.14 HP @ 3157 RPM
Replacement Filter: RC-4900
Air Filter Color: Red
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Round
Clamps Included: 4
Clamp Material: Stainless Steel
Clamp Style: Regular
CARB EO Number: D-269-31
Couplers Included: 1
Type: Gen II
Product Style: 57 Series FIPK
Intake Pipe Color / Finish: Black
Intake Pipe Material: High-Density Cross-Linked Polyethylene
Street Legal In All US States: Yes
TUV Approved (Europe): No
Weight: 13.2 lb (6 kg)
Product Box Height: 10.5 in (267 mm)
Product Box Length: 35.5 in (902 mm)
Product Box Width: 13.25 in (337 mm)
Mounting Hardware Included: Yes
Warranty: 1,000,000 Miles/10 Year

2004.5-2005 Chevrolet Silverado 2500HD (6.6 Duramax LLY)
2004.5-2005 Chevrolet Silverado 3500HD (6.6 Duramax LLY)
2004.5-2005 GMC Sierra 2500HD (6.6 Duramax LLY)
2004.5-2005 GMC Sierra 3500HD (6.6 Duramax LLY)

Vehicle Applications

2004.5 Chevy 6.6L LLY Duramax
2005 Chevy 6.6L LLY Duramax
2004.5 GMC 6.6L LLY Duramax
2005 GMC 6.6L LLY Duramax


  • MFG. Number 57-3047
  • Manufacturer Name K&N Engineering
  • Shipping Weight 14.00 lb.
  • Shipping Length 14 in.
  • Shipping Width 11 in.
  • Shipping Height 36 in.
  • Fuel Type Diesel
  • E-Code 2
  • EO Number d-269-31
  • Filter Media Oiled
  • Filter Type Washable & Reusable
  • Intake Style Open Air Box
  • UPC 024844109187
  • Warranty Yes
  • Warranty Info Million Mile Limited
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L0.00R4.00


★★★★★ ★★★★★
4.0/5 Stars out of 1 Reviews
air intake k&n
intake filter working great for 04 duramax

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Questions and Answers

I have a 2005 GMC Sierra 2500HD 4WD with an after market AFE turbo inlet pipe-which K&N intake do I need ? I Don't want to have problems with the mass air flow sensor.
View Staff Answer 

The K&N AirCharger Intake System 57-3047 would be perfect for your 05 6.6L Duramax (LLY)!

Click Here to view the statement K&N made regarding Mass Air Flow Sensors
Does this air filter require oil application.
View Staff Answer 

Yes, the K&N AIRCHARGER INTAKE SYSTEM 57-3047 is an oiled type filter.

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