K&N Filters Discount Codes In October 2026

Apply 20% off by applying our Coupon

Claim 10% Off Wiper Blades, Oil Filter, Motor Oil, And An Air Filter Cleaning Kit Together at K&N Filters by applying our especial Offer Code

Acquire 20% Off Motor Oil Bundle at K&N Filters by applying this Promotion

Free Add-On On Storewide (Minimum Order: $100) at K&N Filters in your cart using our Exceptional Saving Code

Achieve 10% Off Cleaning Kit (Must Order Air Filter And An Air Filter Cleaning Kit Together) at K&N Filters if you use the Particular Code

$5 savings on your Purchase

Apply 10% on your Entire Order with this K&N Promo

Get Your 70% Offer Before It Expires

$14.99 discount on Cleaning Kit on Air Filter or Intake purchases

Save 20% Off Your First Order At K&N

K&N Promo - 20% off

K&N Special Code: Enjoy 20%

Savings For $5 On Washable Home Air Filter

Receive A 15% Discount Any Order. Special Savings At K&n

Receive Maximum 40% savings At K&N

Redeem 25% off K&N Voucher

Save 10% off any Order

Redeem More For Less At K&N: As much as 10% savings

Use 20% Discount on w/ Special Code

$50 savings on your Purchase

Take up to 20% off Select Powersports Filters

Motorcycle/UTV as low as £8.39

Shop automotive – starting at £46.99

Buy with Confidence - up to 10 Year Warranties

Promotional accessories from £0.29

BMW S1000RR Replacement Air Filters from $63.99

Dodge Magnum Replacement Oil Filters Starting from $7.99 at K&N

Ford F150 Lightning Cold Air Intakes Starting from $349 at K&N

Mercury Grand Marquis Air Filters Starting from $54.99 at K&N

RV Cold Air Intakes Starting from $349 at K&N

Ram 1500 Performance Cold Air Intakes from $299

delivery at no extra cost on $100+ Orders at K&N

Get Free Gift on Your Order Over $50 at K&N Filters (Tested Working Sitewide)

Get 10% Off at K&N Filters With Newsletter Discount Codes Shared by Other Shoppers

Join K&N Filters' Email Newsletter and Get an Instant 10% Off Select Items Storewide Discount Code.

Save Up to $100 Off on K&N Filters at Your Favorite Stores (18 Reseller Discount Codes).

25% Off Select Items at K&N Filters

Save 25% Off Limited selection

Get Free Filter Wrap on Your Order Qualifying Cold Air Intake at K&N Filters

Get a Free Gift on Your Order Over $75 at K&N Filters (Tested Working Sitewide)

Get a Free Gift on Your Orders Over $50 at K&N Filters (Tested Working Sitewide)

Up to $50 off Automotive Cold Air Intakes

Maximum 20% off Subaru Brat Oil Filters

Get up to $50 discount on Performance Heavy-duty Intakes

Maximum 70% off Seasonal Sale

Enjoy up to 20% on Performance Air Filters for Mercury Grand Marquis

Save up to 25% on Dodge Ram 1500 Air Intake Systems

Grab up to 20% on Filter Care products

Maximum 20% discount on Filter Wraps

Take up to $50 discount on High-flow Cold Air Intakes

Enjoy up to 20% on Universal Fit Air Filters

Complimentary shipping on $25+ orders

Enjoy $50 off Air Intakes

Free delivery on $25+ orders of Auto Parts & Accessories

10-20% off Select products for Members

Take 20% off Air & Cabin Filters