RFX Pre-Oiled Air Filter for KTM 85 SX, 250 SX, 250 SX-F and 450 SX-F – Part FXAF 50004 55PO

New to the RFX range and produced by Multi Air, the RFX Air filter is the perfect choice for all levels. Let your bike breath with twin layered foam and precise fitment. With over 30 Years experience, Multi Air is a name you can trust.

The RFX Pre-Oiled Air Filter, part number FXAF 50004 55PO, is manufactured by Multi Air for dependable filtration and precise fitment on select KTM motorcycles. Designed for riders of all experience levels, this replacement filter helps protect the engine from dirt and airborne debris while supporting consistent airflow in demanding riding conditions.

Constructed with breathable, twin-layered foam, the RFX air filter provides effective filtration without unnecessarily restricting air intake. The foam is pre-oiled for convenient installation and ready-to-use performance. Multi Air has more than 30 years of air filtration experience, and its filter designs are built to meet the requirements of motocross, off-road, and recreational motorcycle applications. Nonflammable foam is used on applicable four-stroke models for added suitability across the supported fitments.

This RFX filter is designed as a direct-fit replacement for select KTM models, including the 2004–2006 KTM 250 SX, 2006 KTM 250 SX-F, 2004–2006 KTM 450 SX-F, and 2004–2006 KTM 85 SX with 17/14 wheels. Verify your motorcycle model, year, and configuration before installation to ensure proper fitment. The manufacturer is Multi Air, the brand is RFX, and the vendor part number is FXAF 50004 55PO.

Features:

• Pre-oiled foam: Ready for installation and convenient replacement service.
• Twin-layered foam: Provides breathable filtration for dependable engine protection.
• Nonflammable foam: Used on supported four-stroke applications.
• Precise fitment: Designed as a replacement air filter for select KTM motorcycles.
• Broad compatibility: Fits select 2004–2006 KTM 85 SX, 250 SX, 250 SX-F, and 450 SX-F models.

Fitment:
2004 KTM 125 SX
2004 KTM 200 Exc
2004 KTM 200 Sx
2004 KTM 250 EXC
2004 KTM 250 SX
2004 KTM 300 EXC
2004 KTM 450 EXC-F
2004 KTM 450 SX-F
2004 KTM 525 EXC 4-Stroke
2004 KTM 85 SX (17/14)
2005 KTM 125 SX
2005 KTM 200 Exc
2005 KTM 200 Sx
2005 KTM 250 EXC
2005 KTM 250 SX
2005 KTM 300 EXC
2005 KTM 450 EXC-F
2005 KTM 450 SX-F
2005 KTM 525 EXC 4-Stroke
2005 KTM 85 SX (17/14)
2006 KTM 125 SX
2006 KTM 200 Exc
2006 KTM 200 Sx
2006 KTM 250 SX
2006 KTM 250 SX-F
2006 KTM 300 EXC
2006 KTM 450 EXC-F
2006 KTM 450 SX-F
2006 KTM 525 EXC 4-Stroke
2006 KTM 85 SX (17/14)
2007 KTM 144 Sx
2007 KTM 200 Exc
2007 KTM 300 EXC
2007 KTM 450 EXC-F
2007 KTM 525 EXC 4-Stroke
2007 KTM 85 SX (17/14)
2008 KTM 144 Sx
2008 KTM 85 SX (17/14)
2009 KTM 85 SX (17/14)
2010 KTM 85 SX (17/14)
2011 KTM 85 SX (17/14)
2012 KTM 85 SX (17/14)