K&N BM-1821 Replacement Air Filter for BMW R18 1802cc 2020 to 2021
Looking for a K&N BMW R18 air filter upgrade? The K&N BM-1821 Replacement Air Filter is a high-flow, performance air filter designed as a direct OEM replacement for the BMW R18 1802cc. If you want a BMW R18 performance air filter that delivers improved airflow, crisp throttle response and long service life, the K&N BM-1821 is the go-to choice for riders who value quality and reliability.
This K&N replacement air filter fits the factory airbox, is simple to install and is built to be washable and reusable, making it a cost-effective upgrade for your BMW R18. Ideal for everyday riding and touring, it is a popular BMW R18 air filter upgrade across the UK.
Key Features
- Genuine K&N high-flow replacement air filter for BMW R18 1802cc 2020 to 2021
- Direct OEM replacement that fits the factory airbox for an easy, drop-in install
- Washable and reusable construction for long-term value and reduced waste
- Designed for improved airflow and responsive performance
- Durable build quality from a trusted performance brand
- Ideal upgrade for riders searching for a BMW R18 performance air filter in the UK
Why Riders Choose the K&N BM-1821
The K&N BM-1821 is one of the most searched-for BMW R18 air filters because it combines premium filtration with enhanced airflow in a direct-fit package. At Nforcd we have installed K&N air filters on customer bikes and feedback has been consistently positive, with riders valuing the fit, finish and reusable design. If you are searching for a K&N BMW R18 filter, BMW R18 replacement air filter, BMW R 18 performance air filter or washable motorcycle air filter, this is the part you want.
Compatibility
BMW R18 1802cc 2020 to 2021
If you searched for BMW R18 air filter 2020, BMW R18 air filter 2021, K&N BM-1821, BMW R 18 filter or K&N air filter UK, this product is the correct match for that application.
Part Number
BM-1821
Fitment and Installation
This is a straight replacement panel element for the stock airbox. For professional fitting, we recommend booking with Nforcd in Warwickshire. Request a fitting quote via Sales@nforcd.com.
Compatibility Check
We run a compatibility check prior to dispatch to ensure the part fits your bike. Provide your registration number for UK vehicles or the last 7 digits of your VIN at checkout and our team will verify fitment.
Not sure if this K&N BM-1821 is the right BMW R18 air filter for your model year? Use our product recommender or contact Sales@nforcd.com for fast assistance.
Why Buy from Nforcd
- Specialists in performance parts for road and track
- Genuine, brand-new parts with expert advice
- Hands-on experience and positive customer feedback with K&N filters
- Installation services available in Warwickshire by request
Upgrade your BMW R18 with the K&N BM-1821 Replacement Air Filter today. The ideal BMW R18 performance air filter for riders who want a quality, washable, reusable solution from a brand they can trust.