K&N Engineering RU-5171HBK Black Universal Dryflow Air Filter, 4-Inch Flange

K&N Black Universal Air Filters are made from Dryflow oil-free synthetic media. These low restriction clamp-on air filters are designed and manufactured for a wide variety of applications. When dirty they can be easily washed using K&N synthetic air filter cleaner. K&N Black Universal Air Filters are made from Dryflow oil-free synthetic media. These low restriction clamp-on air filters are designed for a wide variety of applications. They can be washed using K&N synthetic air filter cleaner.

• One Year Limited Warranty

The K&N Engineering RU-5171HBK Black Universal Air Filter is a low-restriction, clamp-on filter designed for a wide range of automotive applications. Its tapered round profile features a 4-inch flange inside diameter, an 8-inch base outside diameter, a 6.625-inch top outside diameter, and an 8-inch height, making it suitable for custom intake systems and replacement applications where filtration performance and installation flexibility are required.

Built with K&N Dryflow oil-free synthetic media, this reusable air filter provides reliable particle filtration without requiring filter oil. The synthetic media is washable with K&N synthetic air filter cleaner, helping simplify routine maintenance and extend service life. A durable rubber base supports secure clamp-on installation, while the black finish provides a clean appearance for custom and performance-oriented engine compartments.

• Fitment: Compatible with select 2006 and 2007 Dodge Ram 2500 and 3500 applications when used with a properly matched intake system.
• Warranty: Backed by a one-year limited warranty from K&N Engineering.
• Emissions Compliance: Not CARB approved; verify applicable emissions requirements before installation.
• Installation: Clamp-on design supports installation on compatible intake tubing and airbox components.

What's Included: One K&N Engineering RU-5171HBK Black Universal Dryflow Air Filter.

Features:

• Dryflow oil-free synthetic media provides low-restriction airflow without requiring filter oil.
• Washable and reusable construction supports convenient maintenance with K&N synthetic air filter cleaner.
• Tapered round design with a 4-inch flange supports custom intake and replacement applications.
• Durable rubber base and black finish provide secure installation and a clean appearance.

Fitments:
2003 Dodge Ram 2500 Laramie
2003 Dodge Ram 2500 SLT
2003 Dodge Ram 2500 ST
2003 Dodge Ram 3500 Laramie
2003 Dodge Ram 3500 SLT
2003 Dodge Ram 3500 ST
2004 Dodge Ram 2500 SLT
2004 Dodge Ram 2500 ST
2004 Dodge Ram 3500 Laramie
2004 Dodge Ram 3500 SLT
2004 Dodge Ram 3500 ST
2005 Dodge Ram 2500 Laramie
2005 Dodge Ram 3500 Laramie
2005 Dodge Ram 3500 SLT
2005 Dodge Ram 3500 ST
2006 Dodge Ram 2500 Laramie
2006 Dodge Ram 2500 SLT
2006 Dodge Ram 2500 Sport
2006 Dodge Ram 2500 ST
2006 Dodge Ram 2500 TRX4
2006 Dodge Ram 3500 Laramie
2006 Dodge Ram 3500 SLT
2006 Dodge Ram 3500 Sport
2006 Dodge Ram 3500 ST
2007 Dodge Ram 2500 Laramie
2007 Dodge Ram 2500 SLT
2007 Dodge Ram 2500 Sport
2007 Dodge Ram 2500 ST
2007 Dodge Ram 2500 TRX4
2007 Dodge Ram 3500 Laramie
2007 Dodge Ram 3500 SLT
2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 ST
2007 Dodge Ram 3500 TRX4
2008 Dodge Ram 2500 Laramie
2008 Dodge Ram 2500 SLT
2008 Dodge Ram 2500 ST
2008 Dodge Ram 2500 SXT
2008 Dodge Ram 3500 Laramie
2008 Dodge Ram 3500 SLT
2008 Dodge Ram 3500 ST
2008 Dodge Ram 3500 SXT
2009 Dodge Ram 2500 Laramie
2009 Dodge Ram 2500 SLT
2009 Dodge Ram 2500 ST
2009 Dodge Ram 2500 SXT
2009 Dodge Ram 3500 Laramie
2009 Dodge Ram 3500 SLT
2009 Dodge Ram 3500 ST
2009 Dodge Ram 3500 SXT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1