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K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height K&N Engineering KNNRC-4780
K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height K&N Engineering KNNRC-4780
K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height K&N Engineering KNNRC-4780
K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height K&N Engineering KNNRC-4780
K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height K&N Engineering KNNRC-4780
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K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height

KNNRC-4780
024844091369
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 72.00 $ 63.19
$ 63.19

SKU: RC-4780 | UPC: 024844091369

K&N Universal Filter Round Tapered 4in FlangeID 6.625in Base OD 5.25in Top OD 9.5in Height RC-4780

K&N RC-4780 is a round tapered universal clamp-on air filter engineered for racing vehicles generators snowmobiles tractors and trucks including 1994-2007 Dodge Ram 2500/3500 and Ford F-250/F-350 Super Duty models. This pre-oiled filter uses 6 layers of premium cotton gauze to trap contaminants while increasing airflow for more horsepower and acceleration. Washable and reusable it delivers long-term performance with easy installation.

Key Features

  • 6 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form a mesh that blocks harmful contaminants for reliable engine protection.
  • Clean Every 5 Years: Needs cleaning only every 75000 miles under normal highway driving or 5 years at 15000 miles per year.
  • Easy Installation: Pre-oiled and ready to clamp on for quick performance gains without tools or modifications.
  • Engineered Power: State-of-the-art media increases horsepower acceleration and overall engine performance.
  • Rugged Construction: Molded rubber flanges absorb vibration stretch up to 116in and use durable materials built to last a lifetime.

Product Notes

  • Filter flanges stretch up to 116in to fit in-between sizes for secure attachment.
  • Wash with K&N cleaning kit and re-oil for repeated use reducing landfill waste.
  • Weight 1.6 lb (0.7 kg) ships in 9.19in x 8.19in x 8.38in box.

Installation Notes

  • Professional installation recommended.
  • Clamp-on design fits 4in (102mm) flange ID centered with 1.25in flange length.
  • Base OD 6.625in (168mm) top OD 5.25in (133mm) height 9.5in (241mm) no hardware needed.

This Part Fits

Year Make Model Submodel
1994-2002 Dodge Ram 2500 Base
2003 Dodge Ram 2500 Laramie
2005-2007 Dodge Ram 2500 Laramie
2003-2004 Dodge Ram 2500 SLT
2006-2007 Dodge Ram 2500 SLT
2006-2007 Dodge Ram 2500 Sport
2003-2004 Dodge Ram 2500 ST
2006-2007 Dodge Ram 2500 ST
1994-2002 Dodge Ram 3500 Base
2003-2007 Dodge Ram 3500 Laramie
2003-2007 Dodge Ram 3500 SLT
2006-2007 Dodge Ram 3500 Sport
2003-2007 Dodge Ram 3500 ST
2007 Dodge Ram 3500 TRX4
2003 Ford Excursion Eddie Bauer
2000-2003 Ford Excursion Limited
1995-1996 Ford F-250 Eddie Bauer
1995-1996 Ford F-250 Special
1994-1996 Ford F-250 XL
1994-1996 Ford F-250 XLT
1997 Ford F-250 HD XL
1997 Ford F-250 HD XLT
1999-2003 Ford F-250 Super Duty Lariat
1999-2003 Ford F-250 Super Duty XL
1997 Ford F-350 Base
1995 Ford F-350 Eddie Bauer
1995-1996 Ford F-350 Special
1994-1997 Ford F-350 XL
1994-1997 Ford F-350 XLT
2003 Ford F-350 Super Duty King Ranch
1999-2003 Ford F-350 Super Duty Lariat
1999-2003 Ford F-350 Super Duty XL

Why Choose K&N?

  • Over 50 years as filtration leader with filters used in racing and daily driving.
  • Washable reusable design lasts longer than disposable filters.
  • Precision manufacturing ensures exact fit and maximum airflow gains.

Frequently Asked Questions

  • Q: Does RC-4780 fit my 2003 Dodge Ram 2500 Laramie?
    A: Yes it clamps onto 4in intakes and matches applications for 1994-2007 Ram 2500/3500 models listed.
  • Q: What material is used in the filter media?
    A: 6 layers of premium cotton gauze treated with tacking agent for contaminant trapping and high airflow.
  • Q: What is the warranty and cleaning interval?
    A: 1-Year Limited Warranty cleans every 75000 miles or 5 years under normal conditions using K&N kit.

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure box 9.19in L x 8.19in W x 8.38in H
  • Weight: 1.6 lb (0.7 kg)
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