Product Description Summary

The K&N BM-1204 high-performance air filter is a drop-in replacement for BMW R nineT and R1200 models, offering increased horsepower, exceptional filtration, and a lifetime of use. Washable, reusable, and emissions-compliant in all 50 states.

K&N High-Flow Air Filter BMW R1200 / R nineT – Enhanced Performance & Durability

Engineered for riders who seek long-term performance and efficiency, the K&N High-Flow BM-1204 Air Filter ensures exceptional airflow and filtration, delivering a noticeable boost in horsepower and throttle response for your BMW motorcycle.

Performance Benefits

Increased Horsepower
Optimized for power gains with high-flow cotton gauze filtration media.

Long-Life Design
Washable, reusable, and built to last the entire lifespan of your motorcycle.

OEM-Compatible Fit
Designed to seamlessly drop into your factory air box without any modifications.

Legal and Worry-Free
Emissions-legal in all 50 states and will not void your motorcycle’s warranty.

Durability & Maintenance

Extended Cleaning Intervals
Only needs servicing every 50,000 miles under standard highway conditions.

No-Hassle Warranty
Backed by K&N’s Lifetime Limited Warranty for peace of mind.

Specifications

• Filter Type: Panel

• Filter Material: High-flow cotton gauze

• Washable/Reusable: Yes

• Dimensions:

  • Height: 1.25 in (32 mm)

  • Length: 5.875 in (149 mm)

  • Width: 3.5 in (89 mm)

• Weight: 1.6 lb (0.7 kg)

• Oil Amount: 0.32 oz (9 ml)

• Package Includes: 1 Air Filter, 1oz K&N Sealing Grease

• Product Box Size: 7.25 in x 4.63 in x 4.63 in

Vehicle Compatibility

Compatible with a wide range of BMW R nineT and R1200 motorcycles from 2004 to 2020, including:

• BMW R nine T (All Variants: Pure, Racer, Scrambler, Urban GS – 2014 to 2020)

• BMW R1200R, R1200GS, R1200GS Adventure, R1200RT, R1200RS, R1200ST (2004–2015)

• BMW HP2 Megamoto / HP2 Enduro / HP2 Sport

• BMW R1200S / R900RT
  OEM Reference Numbers: 13717672552, 13717706414, 13717720354
  Cross Reference: BMC FM39701

• FAQs

  Q1: How often should I clean the BM-1204 air filter?
  A: Under normal highway conditions, cleaning is required every 50,000 miles.

  Q2: Will using this air filter void my BMW warranty?
  A: No, it’s emissions-legal and won’t void the warranty.

  Q3: Is the K&N BM-1204 air filter reusable?
  A: Yes, it’s washable and engineered for lifetime use.

  Q4: Does it fit directly into the OEM airbox?
  A: Yes, it is designed for a direct OEM replacement with no modifications required.

  Q5: Is this filter compatible with BMW R nineT Scrambler and Urban GS?
  A: Yes, it supports all R nineT variants from 2014 to 2020.