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K&N Replacement Element for RK-3929 Custom Air Filter

Marsoni M251S
Sale price$104.99
Pay 4 payments of $26.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Replacement Element for RK-3929 Custom Air FilterSKU: E 3040 UPC: 024844199348 K&N E 3040 Replacement Element for RK 3929 Custom Air Filter Fits 2004 2021 Harley Davidson Sportster The K&N E 3040 is a washable reusable oval air filter that replaces the element in RK 3929 custom air cleaner assemblies on select 2004 2021 Harley Davidson Sportster models. It delivers higher airflow for gains in horsepower and acceleration while protecting your engine with four layer cotton gauze filtration. Covered by
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
Based on 2481 reviews
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D
Verified Purchase
Darlene
Carnegie, US
★★★★★ 5
Great stretch.
Color: Gray
My husband has diabetes and these work great on his heels. I was worried they would be too small, he wears a size 12 shoe and they fit great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
J
Verified Purchase
Joni
Carnegie, US
★★★★★ 4
Heel moisturizer
Color: Gray
Decent fit. Does improve heels
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
B
Verified Purchase
Bk
Omaha, US
★★★★★ 5
Great
Color: Gray
I purchased these after having a total knee replacement. My heels were getting sore from the exercises. These little socks with the gel has helped tremendously. I am now sleeping in them. and the soreness is going away.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
D
Verified Purchase
delladear
Natrona Heights, US
★★★★★ 5
Great price, good quality moisturizing socks
Color: Gray
Nice quality, looks just like image.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
C
Verified Purchase
Christine G
Alexandria, US
★★★★★ 5
Fantastic!
Color: Gray
Excellent product… it’s the fix for dry cracked heels
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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