Twin Air 250 SX/125 SX/85 SX Air Filter, Model 154110X, Part Number 154110X

Each Twin Air filter is pre-oiled with Twin Air biodegradable foam filter oil, developed exclusively for Twin Air by Chevron Texaco. Independently tested by the most prestigious engineering lab in Germany and was found to be the superior filter oil on the market.

The Twin Air 154110X pre-oiled air filter is designed for specified KTM motocross applications. It fits the 1998–2003 KTM 250 SX, 1998–2000 KTM 125 SX, and 2004 KTM 85 SX (17/14). The filter is pre-oiled with Twin Air biodegradable foam filter oil, developed exclusively for Twin Air by Chevron Texaco.

Its coarse open-pore foam captures airborne dirt, grime, and sand before they reach the inner filter layer. Fine open-pore inner foam provides a second filtration stage to trap smaller particles while ensuring maximum air passage. The adhesive is designed to withstand repeated cleaning, and the filter is smaller than stock to increase air space and circulation around the filter.

Manufacturer and vendor part number: Twin Air 154110X.

Features:

• Pre-oiled with Twin Air biodegradable foam filter oil
• Coarse open-pore foam catches airborne dirt, grime, and sand
• Fine open-pore inner foam acts as a second filter for smaller particles
• Designed to ensure maximum air passage
• Adhesive withstands repeated cleaning
• Smaller than stock to increase air space and circulation around the filter
• Fits 1998–2003 KTM 250 SX, 1998–2000 KTM 125 SX, and 2004 KTM 85 SX (17/14)

Fitment:
1998 KTM 125 SX
1998 KTM 200 Exc
1998 KTM 250 EXC
1998 KTM 250 SX
1999 KTM 125 SX
1999 KTM 200 Exc
1999 KTM 250 EXC
1999 KTM 250 SX
2000 KTM 125 SX
2000 KTM 200 Exc
2000 KTM 250 EXC
2000 KTM 250 SX
2001 KTM 125 SX
2001 KTM 200 Exc
2001 KTM 250 EXC
2001 KTM 250 SX
2002 KTM 125 SX
2002 KTM 200 Exc
2002 KTM 250 EXC
2002 KTM 250 SX
2003 KTM 125 SX
2003 KTM 200 Exc
2003 KTM 250 EXC
2003 KTM 250 SX
2004 KTM 85 SX (17/14)