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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
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Description
K&N Universal Air Filter - Oval Straight - 3.688in Flange ID x 10.25in Base O/S Length x 7.875in HExperience superior air intake performance with the K&N Universal Air Filter, model RC 5178. Designed for versatility, this oval straight air filter is perfect for a wide range of automotive applications. Its flange inside diameter measures 3. 688 inches, providing a secure and efficient fit for your vehicle's intake system. The base overall length of 10. 25 inches and height of 7. 875 inches offer ample filtration surface for optimal airflow and
Experience superior air intake performance with the K&N Universal Air Filter, model RC-5178. Designed for versatility, this oval straight air filter is perfect for a wide range of automotive applications. Its flange inside diameter measures 3.688 inches, providing a secure and efficient fit for your vehicle's intake system.The base overall length of 10.25 inches and height of 7.875 inches offer ample filtration surface for optimal airflow and engine protection. Crafted with K&N's trusted engineering standards, this air filter helps improve horsepower and acceleration while allowing your engine to breathe easier.
Built for enthusiasts who demand quality and performance, the K&N Universal Air Filter features a reusable and washable design. This ensures long-term durability and cost savings compared to disposable filters. Whether you’re upgrading your hot rod, kit car, or everyday ride, this filter delivers reliable filtration that keeps harmful contaminants out.
Easy to install and maintain, it is suitable for those looking for a universal fit without compromising on quality. Shop with confidence knowing Tuningsupply brings you competitive pricing and fast delivery across Europe, backed by expert support from fellow automotive fans.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Good
Color: 14AWG-1 Lead
I have used nilight products for years now and they are good for the price.
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Reviewed in the United States on October 12, 2025
★★★★★ 5
Way better and less expensive than building your own harness
Color: 14AWG-1 Lead
Went with a different switch but there’s no way I would ever do a led light install again without one of these. This makes it so much easier and straight forward than building your own harness. There’s quite a bit of extra wire when installing on an utv, but who cares?! For the price of all that comes with, you still save about $20! Besides, they’re universal and work for many vehicles including cars and trucks.
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Reviewed in the United States on March 13, 2021
★★★★★ 5
Used for a radiator fan manual on/off
Color: 14AWG-1 Lead
I used this to wire up my radiator fan on my 2000 Jeep Grand Cherokee 4.0. So far it seems alright. I have bought other kits and this kit came with just the right length of wiring, + I didn't need 2 sets of outputs like the other versions. The switch is a little cheap without feedback but for 10 bucks you aren't going to do any better making your own harness. I'm honestly surprised it powers the fan. These kits are insanely useful and from someone who has wired up lightbars, etc from scratch, just ease your troubles with this. By the time you pay for the neccessary components you will have spent more than this kit.
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Reviewed in the United States on January 6, 2020
★★★★★ 5
Nice kit
Color: 14AWG-1 Lead
This kit has everything you need for a nice clean installation! I used a different switch, but I liked the plug and play feature and only had to put on a couple of terminals, because I shortened the lead to the light bar! A+
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Reviewed in the United States on January 14, 2024
★★★★★ 5
Think about where your Battery is!
Color: 14AWG Wiring Harness -1 Lead
Best things about this kit are the quality, price and speed that I received it! One problem, my car's battery is on the passenger side. The only downside to this kit is that had to cut and add wiring to the lines going to the switch. I wish the kit had plugs on both long wiring bundles so they were interchangeable as I don't need the relay's wires to be as long as I need the switch's wires to be! I give the kit 5 stars anyway because for the price, you cannot go wrong here. I believe it is well-made and it worked out great for my fog lights! Very easy to install with instructions and color diagram!
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Reviewed in the United States on December 17, 2022
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