K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H K&N Engineering KNNRU-5171HBK
K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H K&N Engineering KNNRU-5171HBK
K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H K&N Engineering KNNRU-5171HBK
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K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H

KNNRU-5171HBK
024844334350
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 94.99
$ 94.99

SKU: RU-5171HBK | UPC: 024844334350

K&N Universal Rubber Filter Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H for 2003-2009 Dodge Ram 2500/3500

K&N RU-5171HBK is a black universal clamp-on air filter with Dryflow oil-free synthetic media for high airflow and engine protection. This round tapered filter fits 2003-2009 Dodge Ram 2500 and Ram 3500 models including Laramie, SLT, ST, Sport, SXT, and TRX4 submodels. Its low-restriction design increases horsepower while allowing easy washing and reuse with K&N synthetic cleaner.

Key Features

  • Dryflow Oil-Free Synthetic Media: Delivers maximum airflow without oil contamination for cleaner engine operation and consistent performance
  • Clamp-On Installation: Securely mounts with 4in flange ID to intake tubes, compatible with stock or aftermarket setups on Dodge Ram trucks
  • Precise Dimensions: 8in base OD, 6.625in top OD, 8in height ensure perfect fit in tight engine bays while directing air efficiently
  • Washable and Reusable: Clean with K&N synthetic air filter cleaner and reinstall, extending service life over disposable filters
  • Black Rubber Construction: Durable top and bottom seals resist heat and vibration for long-term reliability in heavy-duty applications

Product Notes

  • Service filter when dirty by washing with K&N synthetic air filter cleaner and air drying before reinstallation
  • Designed for universal applications but verified fit for listed Dodge Ram models
  • Ships in protective box measuring 9.19in L x 9.06in W x 9.44in H

Installation Notes

  • Professional installation recommended.
  • Clamp directly to 4in intake flange using hose clamp, no cutting required
  • Compatible with oiled or dry intake systems, seals to rubber or metal tubes

This Part Fits

Year Make Model Submodel
2003,2005-2009 Dodge Ram 2500 Laramie
2003-2004,2006-2009 Dodge Ram 2500 SLT
2006-2007 Dodge Ram 2500 Sport
2003-2004,2006-2009 Dodge Ram 2500 ST
2008-2009 Dodge Ram 2500 SXT
2006-2007 Dodge Ram 2500 TRX4
2003-2009 Dodge Ram 3500 Laramie
2003-2009 Dodge Ram 3500 SLT
2006-2007 Dodge Ram 3500 Sport
2003-2009 Dodge Ram 3500 ST
2008-2009 Dodge Ram 3500 SXT
2007 Dodge Ram 3500 TRX4

Why Choose K&N?

  • Trusted by millions of drivers for air intake solutions since 1969
  • Engineered for dyno-tested airflow gains and filtration efficiency
  • Backed by No-Hassle Lifetime Limited Warranty on every filter

Frequently Asked Questions

  • Q: Does this fit my 2006 Dodge Ram 2500 ST?
    A: Yes, RU-5171HBK clamps onto 4in flanges on 2003-2009 Ram 2500 ST, Sport, SLT, Laramie, SXT, TRX4 and Ram 3500 models
  • Q: What material is used in the filter media?
    A: Dryflow oil-free synthetic media provides high-flow filtration without oil, black rubber base and top for durability
  • Q: What is the warranty and maintenance?
    A: No-Hassle Lifetime Limited Warranty covers defects. Wash and reuse with K&N cleaner every 50,000 miles or as needed

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure box 9.19in x 9.06in x 9.44in
  • Weight: 2.6 lb

Request For Information

Have questions about K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H? Fill out the form below and we'll get back to you by the next business day.
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