# K&N HD-8899 Washable Motorcycle Engine Air Filter

Motorcycle: The K&N HD-8899 is a washable, reusable engine air filter listed for select 1999–2001 Harley-Davidson models. Its oiled cotton-gauze construction is intended to support airflow and trap contaminants, while exact model-year fit should be confirmed before purchase.

- [Original product page](https://best-deals.pro/product/kn-hd-8899-motorcycle-engine-air-filter)
- [View offer](https://best-deals.pro/visit/kn-hd-8899-motorcycle-engine-air-filter)
- Market: US
- Language: en-US
- Currency: USD
- Brand: K&N
- Model: HD-8899
- Category: Cars & Motorcycles > Auto Parts & Maintenance > Mechanical Parts
- Price: 75.99 USD
- Previous price: 94.99 USD
- Discount: 20%
- Price checked: 2026-11-14T05:36:39.619Z
- Rating: 4.6 / 5
- Reviews: 49

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

- Pre-oiled cotton-gauze filter is described as washable and reusable.
- K&N claims the filter is designed for high airflow and to trap dirt and contaminants.
- Listing identifies fitment for select 1999–2001 Harley-Davidson motorcycles.

## Pros

- Reusable construction may reduce the need to replace the filter after each service interval.
- The listing provides a specific set of compatible model names and years to help assess fitment.

## Specifications

### Identity
- Brand: K&N
- Model: HD-8899
- Product grade: Performance Part
- Fit type: Vehicle Specific Fit
- OEM part number: ZZ HD8899
### Dimensions and installation
- Form factor: Unique
- Dimensions listed: 8.5"L x 8.5"W x 1.56"H
- Weight listed: 16 ounces
### Materials and maintenance
- Filter material: premium oiled cotton gauze
- Cleaning and reuse: Washable and reusable
### Fitment listed
- Compatible vehicles: 1999-2001 HARLEY DAVIDSON FLHRCI Road King Classic F/I 2000-2001 HARLEY DAVIDSON FLHRI Road King F/I 1999-2001 HARLEY DAVIDSON FLHTCI Electra Glide Classic F/I 1999-2001 HARLEY DAVIDSON FLHTCUI Electra Glide Ultra Classic F/I 2001 HARLEY DAVIDSON FLSTCI Heritage Softail Classic F/I 1999-2001 HARLEY DAVIDSON FLTRI Road Glide F/I
### Warranty
- Warranty description: LIMITED WARRANTY

## Before you buy

- Confirm the exact motorcycle model and year against the fitment list before ordering. The claimed airflow, horsepower, acceleration and engine-protection benefits are manufacturer statements, not independently established performance results.

## In the box

- HARLEY DAVIDSON TWIN CAM F/I 1999-2001 (Included)

## A good fit for

- Owners of the specific listed Harley-Davidson models seeking a washable replacement engine air filter.
- Buyers who prefer a reusable filter and are prepared to clean and maintain it.

## Less suited to

- Owners of motorcycles outside the listed applications unless compatibility is confirmed.
- Buyers seeking a disposable filter or documented independent performance measurements.

## Customer feedback

Aggregate ratings lean positive, with most ratings in the top category, but a smaller share are lower, including some one-star ratings. Ratings alone do not explain those experiences or establish fitment, filtration, durability or performance. Buyers should weigh the general rating signal against the need to confirm exact motorcycle compatibility.

## Frequently asked questions

### Which motorcycles does the listing identify as compatible?
It lists select 1999–2001 Harley-Davidson Road King, Electra Glide, Heritage Softail Classic and Road Glide variants. Check the exact model and year because fitment is application-specific.
### Is the HD-8899 washable and reusable?
Yes. The listing describes it as a pre-oiled, washable and reusable cotton-gauze filter. Follow appropriate filter-care instructions for cleaning and re-oiling.
### Does the filter guarantee more horsepower or acceleration?
No such outcome is established here. K&N claims high airflow may help improve horsepower, acceleration and engine response, but those claims are not independent measurements.

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## Add-ons

- [NGK Iridium IX DCPR7EIX Spark Plugs Compatible with 1999-2016 Harley Davidson Twin Cam \(Pair\)](https://best-deals.pro/visit/kn-hd-8899-motorcycle-engine-air-filter)

## Images

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 1](https://best-deals.pro/i/SHicJUg2oBM4Tah6PR9-yYUvbat2Izt8dmCMGBNWVL4Nhe0hoCgj86DWk0KYHrmCMwFUNRwLSL7vZy2MMDONzNappQv8q4db0McUccxw7RoDNbsalFpvks3d.jpg)

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 2](https://best-deals.pro/i/8gRdSftP7Y8-PQG1yTT2-xd7qxI88B6bR53MroSH4ZiNTUQ12Jsi7L-kOzWjLVeZGb6s0dcm0r-qAqk291wfBE8KCj4mr6BoX-yF6F5L1fcNhQEsGGvasD_q.jpg)

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 3](https://best-deals.pro/i/E9-Kxtz1mge2SQYpm1jd_Ofg4H_otBNTzaYd805XrVwIaDLN9Q5xzOhIldFXMpOE8bf7nMyULMf-KWslZr0QuH9RYGGZhspBwn1CO7Co2iHDs7Dx6fZ6r0_l.jpg)

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 4](https://best-deals.pro/i/3Yhy6kFdU5eLTmRj-JfB31J033bdCo4YpxIOc2h65L3Mg5OZEb_Kc2JjiBEoP5rN1XjqlkLVl3Hsrhwus-C5qWsec9nV9kI9pTms4VwMMIz7sMkVIhWW5SFN.jpg)

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 5](https://best-deals.pro/i/Y5CcfHcZlUisqrmzS5T0VbAYvgRhkZmC6100JgrSIbALGNJeATJfDmmPV9kggplMneDL8C9YaiHiwB9AXu_iAtMDQ1yCwiepxNkZiH_punDwPIEGGmTtlCFM.jpg)

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 6](https://best-deals.pro/i/gtE3ATZyabE3BrmN6jlfjgTQg5YtJZHc77C4Wq9TYBt1bAfvAjRR-Lazpdj-sYngY_ICGuSNPH5T4LBMfMRWIc5QL_1JfocEUmKu4QJ62c9021HaHKF5Vk01.jpg)

![K&N HD-8899 Washable Motorcycle Engine Air Filter — 7](https://best-deals.pro/i/u6N8HLUlag5lZMcgHpuWRHp1uKp6M0BKQ5ZgniQNkzBi9inZXQUlJONj_1Ao-Ir-pxQnRyNLSeo9Of4FmeY1qQ0nMf8ckWtZt5733ePKf88xziw2hYDVS72m.jpg)