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The K&N 66-3010 X-Stream Top Assembly fits universal applications on K&N air filter elements with 14 inch outer diameter such as RU-3170 and RU-3132. This top redirects airflow inside the filter to draw more air through side pleats delivering greater performance efficiency and engine protection. Cleanable and reusable construction ensures longer service intervals and reliable operation.
Key Features
- Precision Dimensions: 14in outer diameter 5.125in neck flange and 4.625in height for secure fit on compatible filters.
- Built-in Vent: Equalizes pressure to maintain optimal flow and prevent restrictions.
- Matches 5.125in ID intake tubes for direct bolt-on assembly.
- Yes it attaches to any K&N filter element with 14in outer diameter including popular models like RU-3170 used on trucks and SUVs.
- Adds Filter Area: Increases effective surface area to allow more air into the engine for enhanced power.
- Airflow Redirection: Channels air toward side pleats pulling in greater volume through the entire filter media.
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 | 66-3010 |
| Product Type | Air Boxes |
| Fitment Type | Universal |
| Condition | New |
What's Included
One new K&N air boxes identified by manufacturer part number 66-3010. 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.
Related K&N Engineering Products
- Shop all K&N Engineering products
- K&N X-Stream Top Assembly 14in OD 5.125in Neck Flange 3.063in H
- K&N X-Stream Top Assembly 5.125in Flange ID / 14inx3.75in H / 1.25in Drop B
- K&N 14in Red Custom Air Cleaner Assembly - 5.125in ID x 14in OD x 2.75in H x 1.25in Drop Base
Frequently Asked Questions
How do I confirm K&N 66-3010 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.
Does K&N 66-3010 require tuning or emissions verification?
Requirements vary by vehicle and intake configuration. Check the current K&N application and emissions notes, and complete any required calibration before full-load operation.
What should be checked after installing K&N 66-3010?
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
- Secure to filter element with factory hardware or included bolts
- Matches 5.125in ID intake tubes for direct bolt-on assembly
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