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K&N RC-5178 Diesel Replacement Air Filter
K&N RC-5178 Diesel Replacement Air Filter
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2003.5-2007 6.0L Powerstroke
Ford Super Duty F250/350/450/550

2003.5-2005 6.0L Powerstroke
Ford Excursion
  • Oval Air Filter
  • Intake System Replacement Filter
  • Washable & Reusable Air Filter
Low Price: $119.99

Part Number:


Product Information Installation Shipping

K&N RC-5178 Diesel Replacement Air Filter

Features: Oval System Replacement Air Filter
Replaces Performance Intake System Filter
Designed to Boost Horsepower and Rate of Acceleration
Washable and Reusable Cotton Gauze Air Filter Media can be Cleaned and Used Again
Lasts up to 50,000 Miles Between Servicing Depending on Driving Conditions
High Air Flow with Exceptional Filtration
Works with Original Equipment Manufacturer (OEM) Vehicle Electronics
Emissions Legal in all 50 US States
Will NOT Void Vehicle Warranty
Warranty: 1 Million Mile Limited Warranty
Special Notes: Do NOT over oil your air filter after cleaning it.

When restoring your air filter with K&N Power Kleen the best way to do this is to allow your air filter to fully dry before using the K&N Air Filter Oil. However, don't be overzealous when using the K&N air filter oil. Over oiling your air filter may cause MAP sensor dysfunction. Purchasing a second air filter is a great way to know you have one ready for use at all times.

K&N Cold Air Intake System Replacement Filters

Diesel engines are extremely reliant upon the induction of cold air. In fact, the more cool air that can atomize with fuel during pre-combustion process translates to a more fuel efficient running engine. K&N's cold air intake system replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. Simply open the hood of your diesel truck, remove the disposable air filter and replace it with a K&N. This stock replacement air filter is covered by the famous K&N Million-Mile Limited Warranty™ and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED.

K&N cold air intake system replacement air filters offer an optimal blend of high air flow, filtration efficiency, durability and dust capacity. K&N high flow filter media has been tested in their own in-house laboratories and by independent labs using the ISO5011 air filtration standard developed by the Society of Automotive Engineers. Their goal at K&N is to design air filters with the most possible airflow while providing guaranteed engine protection.

Diesel Engine Protection with K&N Air Filter Filtration

Increasing more airflow is easy to accomplish in a diesel engine, anyone can flow more air. The trick is being able to flow more air through the turbocharger in a safe manner, a manner which is going to filter out the smallest of particles that may harm the turbocharger impellor. Being that the turbo impellor spins more than 30,000 RPM, a small spec of sand, dirt or grime can be catastrophic. K&N got it right by combining high air flow with excellent filtration efficiency. They have designed the diesel cold air intake system replacement air filters with the maximum possible airflow achievable while providing outstanding engine protection. K&N diesel air filters are made with 6 layers of cleanable cotton gauze and are built to withstand the higher volume of airflow generated by diesel motors.

It is highly recommended to keep your K&N filter clean at all times. Using the K&N Power Kleen and restore air filter oil is the key to keeping a well breathing air filter. However, keep in mind when cleaning your K&N filter, do NOT over oil the cotton media. Over oiling any K&N reusable cotton gauze filter media can negatively affect the diesel engine sensors and other electronic components if too much is used.

K&N 99-0621 Power Kleen Air Filter Cleaner Degreaser K&N 99-0516 Aerosol Air Filter Oil K&N 99-5000 Power Kleen Air Filter Cleaner Degreaser and Aerosol Filter Oil Spray
Low Price: $14.99
Low Price: $12.99
Low Price: $16.99
K&N 99-0621 Power Kleen Air Filter Cleaner Degreaser K&N 99-0516 Aerosol Air Filter Oil K&N 99-5000 Power Kleen Air Filter Cleaner Degreaser and Aerosol Filter Oil Spray

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