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K&N RU-2790 delivers high-flow filtration for racing vehicles radio-controlled cars generators snowmobiles tractors and custom intakes with 3.5 inch clamp. This round tapered design with pliable rubber flanges stretches up to 1/16 inch for secure vibration-absorbing fit. Pre-oiled cotton gauze media traps dirt while increasing airflow for more horsepower and quicker throttle response.
Key Features
- Engineered Power: High-flow media boosts horsepower acceleration and engine response across RPM range.
- Fits any 3.5 inch inside diameter flange regardless of angle or offset stretches slightly for perfect seal.
- 4 Layers of Protection: Premium cotton gauze with tacking agent forms mesh to trap contaminants and protect engines in dusty harsh conditions.
- Flanges stretch up to 1.5mm to fit in-between sizes on angled or offset intakes.
- Clamp directly to 3.5 inch intake tube using hose clamp included or provided.
- Multiple layers of oiled cotton gauze with proprietary tacking for superior dirt-holding capacity.
Fitment
| Fitment Status | Universal or dimensional product |
|---|---|
| Required Verification | Exact dimensions, media, connection, mounting interface, and companion part number |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | RU-2790 |
| Product Type | Air Filters - Universal Fit |
| Fitment Type | Universal |
| Condition | New |
What's Included
One new K&N air filters - universal fit identified by manufacturer part number RU-2790. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.
About K&N Engineering
K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.
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Frequently Asked Questions
How do I confirm K&N RU-2790 fits my setup?
Match every listed dimension, flange or thread size, media type, mounting interface, and companion component. A similar shape or outside dimension alone does not confirm compatibility.
Is K&N RU-2790 washable and reusable?
Serviceability depends on the exact media used for this part number. Follow the K&N cleaning and oiling directions for this filter and never apply oil to media specified as dry.
What should be checked after installing K&N RU-2790?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.
Installation Instructions
- Clamp directly to 3.5 inch intake tube using hose clamp included or provided
- Compatible with rubber or metal tubes verify flange diameter before install
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