





🛡️ Keep your engine breathing fresh and dry — because your ride deserves the best!
The K&N RX-4990DR Red Drycharger Filter Wrap is a silicone-treated polyester cover designed exclusively for K&N 57S-9500 air filters. It features water-repellent technology lasting 1-2 years, durable stitched elastic openings for a secure fit, and extends the service interval of your air filter by protecting it from moisture and debris, ensuring optimal airflow and engine performance.





| Brand | K&N |
| OEM Part Number | RX-4990DR |
| Global Trade Identification Number | 00024844107466 |
| Shape | Round |
| Manufacturer | K&N Filters |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 024844107466 |
| Model | Air Filter Wrap |
| Item Weight | 0.797 ounces |
| Product Dimensions | 5.25 x 6.25 x 1.5 inches |
| Item model number | RX-4990DR |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | RX-4990DR |
J**Z
Great Quality Product!
Vehicle: 2013 Chevrolet Cruze LS 1.8LK&N Filter: RE-0930This filter cover fit perfectly on this K&N air filter and I highly recommend it as it helps prevent dust and debris from penetrating through the air filter. The material feels really good as well, not cheap. Not sure why there are so many bad reviews, but if you’re not happy, you’ll know within the first few days, so just return it. No need to burn the product because it didn’t meet your standards or expectations. Again, it was perfect for my setup and I would recommend it to anyone wanting that extra security blanket of protection! Also, I noticed there was a lack of photos and vehicle details so I uploaded several. Now go buy it!
K**N
Easy to install
I just installed both of these wraps on my Q50 and it was so easy to do. The quality look good and only time will tell how they last. My Q50 uses 2 filters and is why I installed 2 of them. No change in performance that I can detect. Living in the midwest and fall around the corner I figured these would help with leaves and other things this time of year. That and a little more protection from water getting into the intake.
S**R
Filter wrap, keeps the filter cleaner longer
Filter wrap my old one wore a hole, perfect fit replacement.
R**D
Great product
Works well with my K&N filter
M**N
Works well but a little thin
Works and fits great. Only issue is the fabric is a bit thin so it can rip easily if your not careful. Most people should be fine but I kept removing mine so it got a little worn out.
J**N
Perfect fit
The main reason I purchased this filter wrap was to prevent large debris from entering the filter pleats. Since this product is specifically manufactured by K&N, I am guaranteed fit, performance, and longevity. The fit is perfect on my filter, not too loose or too tight. The material still allows airflow, but also acts as a "pre-filter" to aid in the cleanliness of the filter. Prior to installing and replacing with a new filter (part RU-4990) I had noticed large pieces of debris embedded in the pleats of the filter, making it difficult to clean. This wrap will prevent such issues and also provide moisture protection as well. Great price and product for protecting your investment.
L**Z
Excelente!
Excelente!
M**N
Nice protection for your air filter
I have been in need of picking one of these up since I do rallycross with my car. Also it was to the point I was needing to clean and re-oil my air filter once or twice a month due to dust and dirt. After doing a couple events since putting it on, my air filter is still nice and red with no dust or dirt on it. The Drycharger has done a good job of blocking a lot of the dust and dirt, and still has been fairly clean itself. Only regret is I didnt get this soon enough.
Trustpilot
1 month ago
3 weeks ago
4 days ago
2 months ago