K&N BM-0400 High-Flow Washable Air Filter for BMW R1100GS, R1100R, R1100RT, R1150GS, R1150R, R1150RT & R850R Motorcycles

Product Description :

Enhance the performance of your BMW motorcycle with the K&N BM-0400 High-Flow Original Lifetime Engine Air Filter. Designed as a direct replacement for the factory air filter, the BM-0400 features multiple layers of premium cotton gauze media that provide exceptional airflow while maintaining excellent filtration efficiency.

K&N's washable and reusable design helps reduce maintenance costs while delivering improved throttle response, increased horsepower potential, and long service intervals. Each filter comes pre-oiled and ready to install, making it the ideal upgrade for riders seeking reliable performance and long-term value.

Manufactured in the USA, the BM-0400 is engineered specifically for select BMW R-Series motorcycles and offers a precision fit with application-specific sealing technology for maximum protection.

Key Features :

✔ High-flow air filter engineered to improve airflow and engine performance

✔ Helps increase horsepower and throttle response

✔ Washable and reusable lifetime design

✔ Premium multi-layer cotton gauze filtration media

✔ Long service intervals compared to disposable paper filters

✔ Pre-oiled and ready for installation

✔ Direct OEM replacement with precise fitment

✔ Made in the USA

✔ Excellent dirt-holding capacity and filtration efficiency

✔ Suitable for street and touring BMW motorcycles

Technical Specifications :

Brand: K&N Filters

Part Number: BM-0400

Filter Type: High-Flow Replacement Air Filter

Filter Material: Cotton Gauze

Shape: Round

Top Style: Open

Inside Diameter: 3 in (76 mm)

Outside Diameter: 4.375 in (111 mm)

Height: 3.375 in (86 mm)

Filter Re-Oiling Amount: 0.52 oz (15 ml)

Washable: Yes

Reusable: Yes

Pre-Oiled: Yes

Country of Manufacture: USA

OEM Cross Reference :

BMW OEM: 13711341528

BMC: FM24406