The Twin Air Air Filter, manufacturer part number 154110 and vendor part number 715-4110, is a dual-stage foam replacement filter designed for select KTM off-road motorcycles. Its thick, flat foam sealing ring provides maximum contact with the airbox while functioning as a breathable gasket to support efficient airflow. The filter is slightly smaller than the stock design to create additional air space around the filter and improve circulation.
Coarse open-pore outer foam captures airborne dirt, grime, sand, and other larger contaminants before they reach the finer inner layer. Fine open-pore inner foam provides a second filtration stage for trapping smaller particles while maintaining strong air passage to the engine. An exclusively formulated adhesive helps the filter withstand repeated cleaning, including cleaning with harsh solvents or gasoline, supporting dependable service in demanding riding environments.
This Twin Air replacement air filter fits select 1998–2003 KTM 125 EXC models, 1998–2003 KTM 250 SX models, and the 2004 KTM 85 SX with 17/14 wheels. Verify the motorcycle model, year, and airbox configuration before installation. The Twin Air brand and part number 154110 provide a reliable reference for replacement and maintenance applications.
Features:
- Dual-stage foam construction captures both large and fine airborne contaminants
- Coarse open-pore outer foam helps trap dirt, grime, and sand
- Fine open-pore inner foam filters smaller particles while supporting maximum air passage
- Thick, flat foam sealing ring promotes close airbox contact without grease
- Smaller-than-stock design increases air space and circulation around the filter
- Cleaning-resistant adhesive withstands repeated service with harsh solvents or gasoline
- Fits select 1998–2003 KTM 125 EXC and 250 SX models and the 2004 KTM 85 SX 17/14
Fitment:
1998 KTM 125 Exc
1998 KTM 125 SX
1998 KTM 200 Exc
1998 KTM 250 EXC
1998 KTM 250 SX
1998 KTM 300 EXC
1999 KTM 125 Exc
1999 KTM 125 SX
1999 KTM 200 Exc
1999 KTM 250 EXC
1999 KTM 250 SX
1999 KTM 300 EXC
2000 KTM 125 Exc
2000 KTM 125 SX
2000 KTM 200 Exc
2000 KTM 250 EXC
2000 KTM 250 SX
2000 KTM 300 EXC
2001 KTM 125 Exc
2001 KTM 125 SX
2001 KTM 200 Exc
2001 KTM 250 EXC
2001 KTM 250 SX
2001 KTM 300 EXC
2002 KTM 125 Exc
2002 KTM 125 SX
2002 KTM 200 Exc
2002 KTM 250 EXC
2002 KTM 250 SX
2002 KTM 300 EXC
2003 KTM 125 Exc
2003 KTM 125 SX
2003 KTM 200 Exc
2003 KTM 250 EXC
2003 KTM 250 SX
2003 KTM 300 EXC
2004 KTM 85 SX (17/14)