K&N 33-5107 Washable Panel Engine Air Filter

The K&N 33-5107 is a washable, reusable replacement engine air filter with a vehicle-specific fit. Its panel shape and stated dimensions can help check physical suitability, but confirm the model year and vehicle configuration before ordering.

At a glance

Washable and reusable design intended to replace a disposable engine air filter.
Manufacturer says the filter is pre-treated and designed to drop into the factory air box.
Four cotton-gauze layers are described as trapping contaminants.
Manufacturer states a 75,000-mile cleaning interval under normal highway driving conditions.

Price

$55.19Save 20%

Reference price: ~~$68.99~~

Price checked: Nov 14, 2026

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Often bought together

K&N LIFETIME Cabin Air Filter: Washable, Clean Air for your Cabin, VF2071 | Compatible with 2012-2026 Acura/Buick/Chervolet/Cadillac: (See Product Description for Select Models)

$38.39

K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi

$23.99

Pros and cons

Pros

Reusable construction avoids replacing the filter with a new disposable unit each service interval.
Pre-treated, drop-in installation is intended to fit the factory air box.
The stated service interval provides a clear maintenance reference for normal highway use.

Cons

A reusable filter requires periodic cleaning rather than simply being discarded and replaced.

Technical specifications

9 specifications

Identity
Brand	K&N
Model	33-5107
Part type	Replacement Part
Fit type	Vehicle Specific Fit

Dimensions and installation
Form factor	Panel
Dimensions listed	9.69"L x 7.72"W x 1.69"H
Weight listed	0.44 kg

Filter and service claims
Cleaning interval claim	Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
Warranty description	1,000,000 Miles/10 Year

What to know before buying

Listing details to confirm

Confirm exact vehicle fit before ordering. The listing describes fit for select 2020–2026 Buick Encore GX, 2024–2025 Buick Envista, 2021–2026 Chevrolet Trailblazer, and 2024–2025 Chevrolet Trax models, while another fit highlight names Encore rather than Encore GX and broader year ranges. These compatibility details are inconsistent, so verify the exact vehicle and model year. The 75,000-mile cleaning interval applies to normal highway driving, not every driving condition. Warranty wording is subject to limitations.

What’s in the box

Included

Air filter

Who is it for?

A good fit for

Drivers with a confirmed compatible vehicle who prefer a washable, reusable engine air filter.
Owners who want a filter described as fitting the factory air box without modification.

Less suited to

Buyers who want a disposable filter with no cleaning or reuse maintenance.
Anyone unable to confirm the vehicle-specific fit for their exact model and year.

K&N 33-5107 Washable Panel Engine Air Filter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 174 ratings

5 stars90%90%
4 stars5%5%
3 stars3%3%
2 stars1%1%
1 star1%1%

Customer feedback reports improved airflow, fuel mileage, fit, and perceived value. Those impressions may matter to drivers considering a reusable filter, but they are customer reports rather than a guarantee of performance or fuel savings. The feedback also includes a very short ownership-duration comment, so it does not establish long-term durability. Aggregate ratings are largely five-star, though a smaller range of lower ratings is present.

Positive themes

Customers report improved airflow and fuel mileage.
Customers describe the fit and value positively.

Frequently asked questions

Is the K&N 33-5107 reusable?

Yes. The listing describes it as washable and reusable, with cleaning recommended every 75,000 miles under normal highway driving conditions.

Which vehicles does the listing say it fits?

It lists select Buick Encore GX and Envista and Chevrolet Trailblazer and Trax years. Fit details conflict elsewhere in the listing, so verify your exact vehicle and year before buying.

Does this filter require changes to the factory air box?

The manufacturer says it is pre-treated and designed to drop into the factory air box.

What warranty is listed?

The listing gives a 1,000,000 Miles/10 Year warranty description and also characterizes coverage as a limited lifetime warranty with limitations. Confirm the applicable terms.