Click to zoom in
SKU: RU-1008 | UPC: 024844373595
K&N Universal Clamp-On Air Filter 4-1/2in FLG / 5-7/8in B / 4-1/2in T / 8-3/8in H
K&N RU-1008 is a round tapered universal clamp-on air filter built for racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and custom intakes. Its pliable rubber flange stretches up to 1/16 inch for secure fit on 4-1/2 inch diameters regardless of angle or offset. Pre-oiled cotton gauze media traps dirt while increasing airflow for more horsepower and acceleration.
Key Features
- 4 Layers of Protection: Premium cotton gauze with tacking agent forms a mesh that blocks contaminants for long engine life.
- Clean Every 5 Years: Washable design needs service only every 75,000 miles under highway conditions (5 years at 15,000 miles/year).
- Easy Installation: Pre-oiled and ready to clamp on for immediate performance gains with no cutting or modifications.
- Engineered Power: High-flow media raises horsepower, acceleration, and throttle response across RPM range.
- Rugged Construction: Durable materials and vibration-absorbing flanges built to last a lifetime.
Product Notes
- Flange stretches up to 1/16 inch (1.5mm) for in-between sizes.
- Wash and re-oil with K&N kit for repeated use.
- Product weight 1.6 lb (0.7 kg). ships in 8.25 x 8.19 x 4.81 inch box.
Installation Notes
- Professional installation recommended.
- Clamp directly to 4-1/2 inch intake tube. no adapters needed.
- Secure with hose clamp (not included) for vibration resistance.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Custom/Racing | Generators/Tractors/Snowmobiles | All |
| Universal | RC Vehicles | Off-Road Equipment | All |
Why Choose K&N?
- Over 50 years engineering high-flow air filters for motorsports and street.
- Lifetime washable design cuts replacement costs versus disposables.
- State-of-the-art media proven to add power in dyno tests.
Frequently Asked Questions
-
Q: What intake sizes does RU-1008 fit?
A: 4-1/2 inch flange inside diameter (114mm), base 5-7/8 inch OD (149mm), top 4-1/2 inch OD (114mm), height 8-3/8 inch (213mm). -
Q: Is the filter material washable?
A: Yes, four layers of oiled cotton gauze rinse clean and reuse indefinitely with K&N cleaning kit. -
Q: What warranty covers this filter?
A: 1-Year Limited Warranty against defects in materials or workmanship.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Secure box 8.25 x 8.19 x 4.81 inches
- Weight: 1.6 lb (0.7 kg)
Air Filters
Shop automotive air filters and performance intake filters at Black Ops Auto Works for direct-fit air filters, drop-in replacement filters, universal clamp-on filters, cabin air filters, engine breather filters, HVAC filters, pre-filters, velocity stacks and intake filter accessories for cars, trucks, SUVs, Jeeps, muscle cars, diesel trucks, import performance builds and custom intake setups. This Air Filters collection is built for enthusiasts who want cleaner airflow, better filtration, improved engine protection, reusable performance filter options, replacement intake filters and vehicle-specific air filter fitment. Browse air filters for Dodge Charger, Dodge Challenger, Dodge Durango, Jeep Grand Cherokee, Jeep Grand Cherokee Trackhawk, Ram TRX, Chevrolet Camaro, Chevrolet Corvette, Cadillac CT5, Ford Mustang, Ford F-150, Toyota Tacoma, Toyota Tundra, BMW, Honda, Infiniti, Nissan, Porsche and other performance platforms. Shop Automotive Air Filters by Category Find the right air ...
View Air Filters Products
Air Filters - Universal Fit
Welcome to our exclusive collection of Air Filters - Universal Fit, designed to meet the diverse needs of your vehicle. These filters are essential for maintaining optimal engine performance and air quality, ensuring a smoother ride and enhancing the longevity of your automobile. Our universal fit air filters are crafted with quality materials, providing superior filtration efficiency and ease of installation. Key Features of Our Air Filters - Universal Fit Versatile Compatibility: These air filters are designed to fit a wide range of vehicles, making them a smart choice for any car owner. High Filtration Efficiency: Our filters effectively trap dirt, dust, and debris, ensuring only clean air enters your engine. Easy Installation: With a universal fit design, installation is straightforward and can be done without professional help. Durable Construction: Made from high-quality materials, our air filters are built to last, providing reliable performance. Why Choose the ri...
View Air Filters - Universal Fit Products
K&N Engineering
Shop K&N Engineering cold air intakes, reusable air filters, oil filters, cabin filters, fuel filters and performance filtration upgrades at Black Ops Auto Works for cars, trucks, SUVs, diesel builds, off-road vehicles, muscle cars, Jeeps, Mopar platforms and custom performance applications. K&N Engineering is one of the most recognized names in automotive filtration and airflow technology. This collection includes K&N cold air intake systems, high-flow replacement air filters, universal clamp-on air filters, drop-in filters, oil filters, cabin air filters, fuel filters, Dryflow filters, filter cleaning kits, intake adapters, air intake accessories and performance filtration parts for street, towing, off-road, diesel and high-performance builds. Shop K&N Engineering Products by Category Find the right K&N performance filtration upgrade using related Black Ops Auto Works categories. Shop cold air intakes, air intake systems, air intake components, automotive air f...
View K&N Engineering ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
