# K&N 33-3131 Washable Engine Air Filter

K&N 33-3131 is a washable, reusable replacement engine air filter listed for select Ford and Lincoln vehicles. Its four-layer cotton-gauze media and drop-in design may appeal to owners who prefer cleaning and reusing a filter, but exact vehicle fitment is the key buying check.

- [Original product page](https://best-deals.pro/product/kn-33-3131-washable-engine-air-filter)
- [View offer](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- Market: US
- Language: en-US
- Currency: USD
- Brand: K&N
- Model: 33-3131
- Category: Cars & Motorcycles > Auto Parts & Maintenance > Mechanical Parts
- Price: 55.19 USD
- Previous price: 68.99 USD
- Discount: 20%
- Price checked: 2026-11-14T05:34:32.866Z
- Rating: 4.7 / 5
- Reviews: 529

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Reusable filter with four layers of treated cotton-gauze media, according to the listing.
- Pre-treated design is described as ready to drop into the factory air box.
- The maker recommends cleaning every 75,000 miles under normal highway driving conditions, based on 15,000 miles driven per year.
- Listing describes a limited lifetime warranty for stock replacement filters, with limitations applying.

## Pros

- Washable and reusable design can reduce reliance on disposable replacement filters.
- Drop-in installation is intended for the factory air box, without describing a separate modification.
- The stated cleaning interval gives highway drivers a useful maintenance reference, subject to driving conditions.

## Cons

- Reusable media requires cleaning rather than simply replacing the filter when servicing is due.

## Specifications

### Identity
- Brand: K&N
- Model: 33-3131
### Dimensions and installation
- Form factor: Rectangular
- Dimensions listed: 10.56"L x 8.06"W x 1.63"H

## Before you buy

- Vehicle compatibility varies by model year and configuration. Confirm that 33-3131 matches the exact vehicle before ordering. The listing title names Bronco, Escape, Focus, Maverick, and Corsair across select 2018–2025 vehicles, while the description lists Focus, Kuga, Bronco Sport, Maverick, Escape, and Corsair with narrower year ranges. Treat these compatibility details as inconsistent and confirm the specific application. The 75,000-mile cleaning interval is stated for normal highway driving, not as a universal interval. Warranty wording is limited and subject to limitations.

## In the box

- Air filter (Included)

## A good fit for

- Drivers of a confirmed compatible vehicle who want a reusable engine air filter.
- Owners comfortable with periodic filter cleaning instead of routine disposable-filter replacement.

## Less suited to

- Buyers who want a disposable filter with no cleaning or re-oiling maintenance.
- Anyone who has not confirmed fitment for their exact vehicle and model year.

## Customer feedback

Customer feedback is positive about throttle response, ECO-mode acceleration, fit on Bronco Sport models, fuel mileage, and installation ease. These are customer-reported impressions rather than guaranteed outcomes. They may matter to buyers considering the listed reusable drop-in design, but feedback does not establish results for every vehicle or prove compatibility. Aggregate ratings are generally favorable, though a smaller share is low-rated.
- Positive themes: Customers report improved throttle response and ECO-mode acceleration, especially on 1.5L engines.
- Positive themes: Customers describe good fit on Bronco Sport models and easy installation.
- Positive themes: Some customers report improved fuel mileage.

## Frequently asked questions

### Which vehicles does the K&N 33-3131 fit?
The title and description give overlapping but inconsistent vehicle lists and year ranges. Confirm fitment for your exact vehicle, year, and configuration before buying.
### How often does the listing say to clean this filter?
It states every 75,000 miles under normal highway driving conditions, based on 15,000 miles per year. That interval should not be treated as universal for all driving conditions.
### Is the filter reusable?
Yes. The listing describes washable, reusable cotton-gauze media. Reuse involves periodic cleaning rather than replacing it as a disposable filter.
### Does the listing promise a power increase?
The maker says the filter is designed to increase horsepower and acceleration, but the supplied information does not establish a measured result for a particular vehicle.

## Alternative options

- [K&N Engine Air Filter: High Performance, Powersport Air Filter, CM-9017 \| Fits Select 2017-2026 CAN-AM: Maverick Sport 100R XT/Commander 1000R DPS/Commander Max 1000R XT-P \(See Product Description\)](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [Engine Air Filter&Cabin Air Filter Combo Fits Ford Escape 2.0L 2023-2026,Bronco Spo...](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
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- [Mabett Center Console Organizer Set for 2022-2026 Ford Maverick Accessories \| Set Include Dual-layer Center Console Armrest Organizer & Dual Cup Holder & Door Handle Organizer, Durable ABS Material 7PCS](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [Engine Cabin Air Filter for Ford Mustang 2.3L 26 25 24 \| Only Fit 2.3L Compatible w...](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [K&N High-Flow Original Lifetime Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with 2021-2026 Ford/VOLKSWAGEN Bronco, Ranger, Amarok, E-0634](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [Kefly Filter Kit for 2020-2025 Ford Escape 2022-2025 Maverick 2.5L Hybrid \| CA12813 Engine Air Filter & FL-910S Oil Filter & FP89 Cabin Air Filter](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [CDEFG for 2022-2026 Ford Maverick Center Console Organizer Tray Accessories \| 2022-2026 Maverick Armrest Trays Storage Box Coin Holder 2022-2025 2026 Maverick Truck Accessories, 2-Pack \(Orange Trim\)](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [Engine Cabin Air Filter for Ford Bronco Sport\(2021‑2025\), Escape\(2020‑2022\) \| GAS ONLY, NOT FOR HYBRID, For Lincoln Corsair 2.0L/2.3L\(2020‑2022\), Maverick 2.0L\(2022‑2024\), Replace JX6Z19N619BA, JX6Z9601A](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [KAX CA12778 Engine Air Filter for Ford Bronco, Lincoln Corsair \| for Ford Bronco Sport 2021-2026, Escape 2020-2022 1.5/2.0L, Maverick 2022-2026 2.0L, Lincoln Corsair 2020-2022 2.0/2.3L](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [Cabin & Engine Air Filter Kit for 20-22 Ford Escape 1.5L 3Cyl/2.0L 4Cyl Gas \| for Bronco Sport 2021-24 1.5L 3Cyl Gas, Bronco Sport 2021-25 2.0L 4Cyl Gas, Maverick/Corsair, Engine Cabin Air Filter Set](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)

## Add-ons

- [K&N LIFETIME Cabin Air Filter: Washable, Clean Air for your Cabin, VF3021 \| Compatible with 2014-2026 Ford/Lincoln: Bronco, Escape, Explorer, Mustang Mach-E, Aviator, Corsair](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)
- [K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi](https://best-deals.pro/visit/kn-33-3131-washable-engine-air-filter)

## Images

![K&N 33-3131 Washable Engine Air Filter — 1](https://best-deals.pro/i/LJnvuE_ory42uwXQiQWNHjlE4r7Sl0SBSATAkUMxW35rXzpGBw_2gUVBJndBZUuOpTQ2TvYaPIxE6Hi-YnnU-g35aWmm6mPIpYy7v94_fxTWEdeq-y9m3rzZ.jpg)

![K&N 33-3131 Washable Engine Air Filter — 2](https://best-deals.pro/i/rl6M1i2GJ1TshPZS1rjmdjs11S78nsc11AZjkfoCP91fQsGqM7sf36J5GCcTKCuYG_ONiYAwIywwFRn2z_WaqZQQRfxdWSOF3pKvSiAmUyiBjEC0rLhUyRGe.jpg)

![K&N 33-3131 Washable Engine Air Filter — 3](https://best-deals.pro/i/2jhmwQupT6xlr-L6Fr-vqHj3eB2v80rQrD8_atrVHKgrLORK86tUwRATbeMwa0bWwPc0G_FW81U_T3R9qjwLnm7mVe2giYEN22_ILBo76EgCLhevHoFIdTIk.jpg)

![K&N 33-3131 Washable Engine Air Filter — 4](https://best-deals.pro/i/nqI232H2kJYF_Q6Cgl7IlcHxb40Dw8Fz5GnOcn_u1tXPDMrO-e7foFvny9lOBPx783aLHHaaZwVfetdZQVaYL2qdRtB_gsIAWukC8Y5mVP6gmOKvzgyUSO1i.jpg)

![K&N 33-3131 Washable Engine Air Filter — 5](https://best-deals.pro/i/KnESCzg7LpEqUD6epjU5Uxzc9ZFF6xFs-wGCL3I3Ik9WQ9WT2lAyi9gAQb-mQx9ggK0QtTVfk-Xx_e0mhps2m05cOXc14RT3dybOlsqnh4Tq8UJ0wWvhOeWl.jpg)

![K&N 33-3131 Washable Engine Air Filter — 6](https://best-deals.pro/i/_H2TUJ2728_YzdpVQREmK1IFdOnnbG4gxOQqA5p9JaHxSw6U9RWBYh84-lDRBUV8DhzTsCeaGFzXyaRyBGxM7-RXaOnDkbTPR7Fl-pT_g8MRmkQSAaaBqRgz.jpg)

![K&N 33-3131 Washable Engine Air Filter — 7](https://best-deals.pro/i/0rcsE_Fn-Pwgbh6xuWjj5JsP0w53K4FkGmd8fXr4qYEJF8A7xmE27dTElitqSU4d96_rwCooqNmaeFk7gkMV8eCxLM4u5MSuCykwMb5Xw4MaN4ewL-bhsYxK.jpg)