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The K&N Drycharger RC-5139DK slips over compatible round tapered K&N air filters to block dust debris and water while preserving airflow. It fits filters like RU-5179 used in Ford F-250 Super Duty 2011-2016 with aftermarket intakes off-road trucks and custom setups. Drivers gain reliable engine protection in wet dusty conditions with extended filter life and consistent performance.
Key Features
- Airflow Efficiency: Uniform micron openings deliver high airflow rates for responsive engine power under demanding loads
- Water Resistance: Silicone-treated polyester repels moisture to prevent water damage in rain mud or wet trails
- Extended Filter Life: Pre-filter barrier traps contaminants early to reduce cleaning frequency on your main K&N filter
- Durability: Reusable washable construction lasts 1-2 years with water-repellent properties intact
- Precise Fit: Matches 9-inch base 6.625-inch top 7.5-inch height round tapered closed-top K&N filters
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 | RC-5139DK |
| Product Type | Pre-Filters |
| Fitment Type | Universal |
| Condition | New |
What's Included
One new K&N pre-filters identified by manufacturer part number RC-5139DK. 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 6.625in Base ID / 5.25in Top ID / 9.5in H Round Tapered Black DryCharger Air Filter Wrap
- K&N 6in ID x 6inH Closed Top Black DryCharger Air Filter Wrap
- K&N Air Filter Wrap Drycharger - Black
Frequently Asked Questions
How do I confirm K&N RC-5139DK 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 RC-5139DK 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 RC-5139DK?
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
- Remove K&N air filter slide Drycharger wrap over it and reinstall in intake no tools needed
- Designed for K&N oiled cotton filters only not compatible with OEM paper filters
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