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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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Description
Harley Davidson K&N Custom Air Cleaner Assembly # RK-3931Harley Davidson K&N Custom Air Cleaner Assembly # RK 3931 Air Cleaner, Flat Base, Teardrop, Chrome Top, Red Filter, Velocity Stack, Back Plate, Harley Davidson, Kit Base Style: Flat Air Cleaner Shape: Teardrop Air Cleaner Size: 9 in. diameter Air Cleaner Top Design: Plain Air Cleaner Top Material: Aluminum Air Cleaner Top Finish: Chrome Filter Height (in): 2. 125 in. Air Cleaner Base: Black powdercoated aluminum Air Cleaner Filter: Red cotton gauze
Harley Davidson K&N Custom Air Cleaner Assembly # RK-3931Air Cleaner, Flat Base, Teardrop, Chrome Top, Red Filter, Velocity Stack, Back Plate, Harley-Davidson, Kit
Base Style:Flat
Air Cleaner Shape:Teardrop
Air Cleaner Size:9 in. diameter
Air Cleaner Top Design:Plain
Air Cleaner Top Material:Aluminum
Air Cleaner Top Finish:Chrome
Filter Height (in):2.125 in.
Air Cleaner Base:Black powdercoated aluminum
Air Cleaner Filter:Red cotton gauze
Nut Included:No
Quantity:Sold as a kit.
Notes:Includes velocity stack and back plate.
These KN RK series air filter assemblies are a remarkable combination of performance and style. These assemblies are custom-designed for your cruiser and are machined from billet aluminum, luster-polished, and then chrome plated or powdercoated to complement your show bike. These KN RK series air filter assemblies come in two unique styles and three unique finishes. Additionally, KN RK series air filter assemblies come complete and ready to use, and they even include your mounting bracket kit!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Last long
Color: BLACKEST BLACK, Size: 0.24 Fl Oz (Pack of 1)
Absolutely love this Maybelline mascara! It makes my lashes look longer, fuller, and more defined without clumping. The formula lasts all day and doesn’t smudge easily. It’s affordable, easy to apply, and gives such a beautiful lash look.”
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Reviewed in the United States on May 22, 2026
★★★★★ 4
lengths no clump
Color: TRUE BROWN, Size: 0.24 Fl Oz (Pack of 1)
Great price goes on easy lengths not thick but does not last long once in use when air hits it 3 weeks the most than buy new one
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Soft Cotton Rounds That Work Well for Skincare
Size: 100 Count (Pack of 1), Size: 100 Count (Pack of 1)
These cotton rounds are soft, durable, and work well for everyday skincare and makeup removal. They don’t fall apart easily when using toner or micellar water, which I appreciate. The packaging is simple and convenient, and the quantity is great for the price. Overall, a reliable product to keep on hand.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great Quality & Value – My Everyday Essential
Size: 100 Count (Pack of 6)
I use these cotton rounds every single day, and they’ve become a staple in my skincare routine. They’re soft, gentle on the skin, and work perfectly for removing makeup or applying toner.
The quality is excellent—they hold together well and don’t fall apart during use. For the amount you get, the price is really hard to beat, making them a great value for everyday use.
I’ve been very happy with these and will continue to repurchase. I highly recommend them to anyone looking for reliable, affordable cotton rounds!They’re gentle enough for sensitive skin and work great for all my skincare steps.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Good quality but slightly loose cotton
Size: 100 Count (Pack of 1)
This product is great for removing eye makeup and absorbs micellar water well. The cotton round is thick and just the right size for both eyes. However, the cotton sometimes comes undone when my hangnails get stuck on it. It's also easy to tear apart if you pull on it.
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Reviewed in the United States on June 3, 2026