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K&N Filters Promo Codes and Coupons September 2025
K&N Filters
K&N Filters is a leading manufacturer and retailer of performance air filters, air intake systems, and oil filters for automobiles, motorcycles, and other vehicles. Founded in 1969, they are known for their reusable air filters and lifetime warranty on many products. The company operates primarily through their website knfilters.com, offering direct-to-consumer sales alongside their dealer network.
knfilters.comToday's K&N Filters discount codes
TOP PICK
Free k&n Tote Bag (Add Tote Bag)
253 uses
low
worked over 2 years ago
Free K&n Tote Bag (Add Tote Bag) Storewide (Minimum Order: $100) at K&N Filters
20% off
259 uses
low
worked over 2 years ago
20% Off Motor Oil Bundle at K&N Filters
20% off
114 uses
low
worked over 2 years ago
20% Off Air Filter Wrap (Must Order Air Intake System) at K&N Filters
10% off
157 uses
low
worked almost 3 years ago
10% Off Cleaning Kit (Must Order Air Filter And An Air Filter Cleaning Kit Together) at K&N Filters
Featured K&N Filters Products
What K&N Filters coupons are available today?
We track so many discount codes. Read about today's K&N Filters coupon statistics.
19
K&N Filters deals available today
0
Active K&N Filters codes
20% off
Biggest discount available
Get the best K&N Filters promo codes and coupons that actually work. Our community of sustainability minded shoppers helps you save by testing and sharing:
- Verified promo codes with live success rates from recent shoppers!
- Exclusive single-use codes shared by our community (19 active codes).
- Drop alerts when K&N Filters's most popular items go on sale!
- Deals for those who want extra savings opportunities
- Insider savings tips from experienced K&N Filters shoppers who know the best deals.
Why TerraCoupons finds better K&N Filters discounts:
- Live success tracking: See exactly which codes are working for other shoppers right now
- Real-time feedback: Every code attempt is tracked and ranked to show you the best options first
- Sale predictions: Get alerted when K&N Filters's next big discount event is coming
- Exclusive savings: reseller discounts, shopping tips and sustainability tips you won't find elsewhere
Free Gift
82 uses
low
worked almost 3 years ago
Free Gift On Storewide (Minimum Order: $100) at K&N Filters
$10 off
109 uses
low
worked almost 3 years ago
$10 Off When Purchasing A Home Air Filter And A K&n Hvac Filter Cleaner (99-6010) (Must Order 1 Home Air Filter, 1 (99-6010) K&n Hvac Filter Cleaner) at K&N Filters
$10 off
41 uses
low
worked about 3 years ago
Get $10 Off The Cleaning Kit On With Cabin Air Filter And A Cabin Air Filter Cleaning Kit (Must Order Both Products) at K&N Filters
$50 off
114 uses
low
worked about 3 years ago
$50 Off Air Intakes at K&N Filters
More K&N Filters Products
10% off
41 uses
low
worked about 3 years ago
10% Off Wiper Blades, Oil Filter, Motor Oil, And An Air Filter Cleaning Kit Together at K&N Filters
20% off
71 uses
low
worked about 3 years ago
20% Off Air Filters Y Cabin Filters at K&N Filters
10% off
40 uses
low
worked 6 months ago
10% Off Select Items at K&N Filters
Free Glove
30 uses
low
worked over 3 years ago
Free Glove On Storewide (Minimum Order: $200) at K&N Filters
Sustainability Score
62%
While K&N's reusable filters contribute to reducing waste, their overall sustainability practices show room for improvement. They lack transparency in their manufacturing processes and supply chain management. Though they have made steps toward reducing packaging waste and energy consumption in facilities, they haven't published comprehensive environmental goals or clear ESG metrics. Their labor practices meet industry standards, but there's limited information about worker conditions in their global facilities. The company could improve by establishing clear sustainability targets and increasing transparency in their operations.
About K&N Filters
3.0 (2)
FAQs
K&N typically offers their largest discounts during major holidays like Black Friday, Cyber Monday, and Memorial Day weekend, with savings usually ranging from 10-20% off.
Yes, K&N Filters offers a 10% military discount to active duty, veterans, and their families with proper verification through ID.me.
The best times to purchase are during the holiday season (November-December) and during automotive enthusiast seasons (Spring and early Summer) when they frequently run promotions.
Yes, new subscribers to their email newsletter typically receive a one-time 10% off coupon code for their first purchase.
In the past month, K&N Filters has launched 10 new promo coupons for shopper discounts. This indicates that K&N Filters provides regular opportunities for customers to save money on their purchases.
On average, K&N Filters provides 5 discount coupons each month. Based on historical data, the average time between K&N Filters coupon releases every 6 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking K&N Filters website regularly, subscribing to email newsletters, and following them on social media.
K&N Filters is offering no working store-wide codes, however they are also offering 19 additional discount codes with a best discount of 20% off
terra.coupons is the #1 provider of discount codes for your favorite retailers, such as K&N Filters. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest K&N Filters discount codes.
Curated by
Linda S.
Content Writer
Last updated September 2025
This page was curated by Linda, a savings and discount enthusiast from sunny Sarasota, Florida. With a keen eye for unbeatable deals, Linda ensures that all codes are checked and curated daily. She's also a certified yoga instructor who loves to share wellness tips. Check back tomorrow for more savings and perhaps a little zen!
Latest K&N Filters coupon activity
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