Search
Clear filters

K&N Engineering - Performance Air Filters, Oil Filters, Intake Systems & More

Founded in 1969 in Riverside, California by racers Ken Johnson & Norm McDonald, K&N Engineering revolutionized filtration with the first washable, oiled cotton High‑Flow Air Filter™, designed to boost airflow while keeping engines cleaner—crafted to be reused for up to one million miles.

Over the next five decades, K&N expanded into bolt-on cold-air intakes (1992), Wrench‑Off oil filters (1988), cabin filters, fuel filters, and home A/C filters—now offering over 12,000 SKUs worldwide. Their 400,000 sq ft Riverside HQ, along with facilities in Texas, the UK, Netherlands, and China, houses advanced R&D with airflow benches, chassis dynos, vibration labs, and NASCAR/NHRA-grade pipelines.

K&N products are dyno-validated, ISO-tested, and built for both professional motorsports and daily drivers. Their renowned Million‑Mile/Million‑Mile warranty and global customer support reflect a legacy of trusted performance. Today, K&N continues to lead in innovation—delivering sustainable, high-performance filtration for millions of vehicles on the road.

Filters

Filters

Clear all
$
to
$
642 products
Sort by
Sort by
Newly Added
K&N Universal Rubber Filter Round Tprd 3.313in Flange ID x 4.75in Base OD x 3.5in Top OD x 6.5in H K&N Universal Rubber Filter Round Tprd 3.313in Flange ID x 4.75in Base OD x 3.5in Top OD x 6.5in H
Add to wishlist
Quick view
Add to compare
K&N Universal Rubber Filter Round Tprd 3.313in Flange ID x...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$63.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 1 3/4 inch Flange 3 inch Base 2 inch Top 2.5 inch Height K&N Filter Universal Rubber Filter 1 3/4 inch Flange 3 inch Base 2 inch Top 2.5 inch Height
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 1 3/4 inch Flange 3...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$46.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 4 inch Flange 5 3/8 inch Base 4 3/8 inch Top 7 inch Height K&N Filter Universal Rubber Filter 4 inch Flange 5 3/8 inch Base 4 3/8 inch Top 7 inch Height
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 4 inch Flange 5 3/8...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$55.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 2 inch Flange 3 1/8 inch Base, 2 inch Top, 3 inch Height K&N Filter Universal Rubber Filter 2 inch Flange 3 1/8 inch Base, 2 inch Top, 3 inch Height
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 2 inch Flange 3 1/8...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal 4 Inch Filter K&N Universal 4 Inch Filter
Add to wishlist
Quick view
Add to compare
K&N Universal 4 Inch Filter
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Univ Clamp-On Air Filter - 1-3/4in FLG O/S 4in X 3in B 3in X 2in T 2-3/4inH OVAL K&N Univ Clamp-On Air Filter - 1-3/4in FLG O/S 4in X 3in B 3in X 2in T 2-3/4inH OVAL
Add to wishlist
Quick view
Add to compare
K&N Univ Clamp-On Air Filter - 1-3/4in FLG O/S 4in...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$63.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Rubber Filter 3 inch Flange 5 inch OD 5 inch Height K&N Universal Rubber Filter 3 inch Flange 5 inch OD 5 inch Height
Add to wishlist
Quick view
Add to compare
K&N Universal Rubber Filter 3 inch Flange 5 inch OD...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$55.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Rubber Filter 3 inch Flange 5 inch OD 3 inch Height K&N Universal Rubber Filter 3 inch Flange 5 inch OD 3 inch Height
Add to wishlist
Quick view
Add to compare
K&N Universal Rubber Filter 3 inch Flange 5 inch OD...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N 2-7/8in flg 4in od 5-3/8in h K&N 2-7/8in flg 4in od 5-3/8in h
Add to wishlist
Quick view
Add to compare
K&N 2-7/8in flg 4in od 5-3/8in h
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
Available to Order
$46.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Clamp-On Air Filter 2.25in Flange ID 3.5in OD 2in Height K&N Universal Clamp-On Air Filter 2.25in Flange ID 3.5in OD 2in Height
Add to wishlist
Quick view
Add to compare
K&N Universal Clamp-On Air Filter 2.25in Flange ID 3.5in OD...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$67.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Round Filter 6in ID Flange 7.5in OD 4.5in H K&N Filter Universal Rubber Round Filter 6in ID Flange 7.5in OD 4.5in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Round Filter 6in ID Flange 7.5in...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$55.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter Oval Tapered 4in Base O/S L x 3.5in Top O/S L x 2.75in H K&N Filter Universal Rubber Filter Oval Tapered 4in Base O/S L x 3.5in Top O/S L x 2.75in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter Oval Tapered 4in Base O/S...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$46.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID x 5in OD x 8.5in H K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID x 5in OD x 8.5in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$63.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch Height K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch Height
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled 2-7/16in Flange 3-3/4in OD 5in H K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled 2-7/16in Flange 3-3/4in OD 5in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$46.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled 2-7/16in Flange 3-3/4in OD 4in H K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled 2-7/16in Flange 3-3/4in OD 4in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Round Air Filter 20 Deg Flange Angle 2.25in Flange ID x 3.5in OD x 6in H K&N Filter Universal Rubber Round Air Filter 20 Deg Flange Angle 2.25in Flange ID x 3.5in OD x 6in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Round Air Filter 20 Deg Flange...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$46.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 20 Deg Flange Angle 2.25in Flange ID x 3.5in OD x 5in H K&N Filter Universal Rubber Filter 20 Deg Flange Angle 2.25in Flange ID x 3.5in OD x 5in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 20 Deg Flange Angle 2.25in...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$63.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Air Filter (2-1/4in 20 Deg.Flange / 3-1/2in Top OD / 4in Height) K&N Universal Air Filter (2-1/4in 20 Deg.Flange / 3-1/2in Top OD / 4in Height)
Add to wishlist
Quick view
Add to compare
K&N Universal Air Filter (2-1/4in 20 Deg.Flange / 3-1/2in Top...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$63.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Clamp-On Air Filter 3-15/16in FLG / 5-1/2in B / 4-1/2in T / 6in H K&N Universal Clamp-On Air Filter 3-15/16in FLG / 5-1/2in B / 4-1/2in T / 6in H
Add to wishlist
Quick view
Add to compare
K&N Universal Clamp-On Air Filter 3-15/16in FLG / 5-1/2in B...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$67.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Clamp-On Air Filter 2.375in Flg ID x 5.21875in B OD x 3.5in T OD x 3.75in H K&N Universal Clamp-On Air Filter 2.375in Flg ID x 5.21875in B OD x 3.5in T OD x 3.75in H
Add to wishlist
Quick view
Add to compare
K&N Universal Clamp-On Air Filter 2.375in Flg ID x 5.21875in...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 2 7/8 inch Flange 4 inch OD 6 inch Height K&N Filter Universal Rubber Filter 2 7/8 inch Flange 4 inch OD 6 inch Height
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 2 7/8 inch Flange 4...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$42.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Universal Oval Clamp-On Air Filter 2-3/4in Flange 6-1/4in Length 4in Width 5in Height K&N Universal Oval Clamp-On Air Filter 2-3/4in Flange 6-1/4in Length 4in Width 5in Height
Add to wishlist
Quick view
Add to compare
K&N Universal Oval Clamp-On Air Filter 2-3/4in Flange 6-1/4in Length...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$76.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart
Newly Added
K&N Filter Universal Rubber Filter 10 Degree Flange Angle 4in OD x 2.75in Flange ID x 7in H K&N Filter Universal Rubber Filter 10 Degree Flange Angle 4in OD x 2.75in Flange ID x 7in H
Add to wishlist
Quick view
Add to compare
K&N Filter Universal Rubber Filter 10 Degree Flange Angle 4in...
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications....
In Stock
$63.95
1-2 Shipping (In-stock Items)
Guaranteed Fitment
Financing Options Available
Add to cart

Recently viewed products