Two New XStream Top Extreme Duty Clamp-on Filters Released for Use In Dusty Conditions

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K&N has released two new extreme duty universal clamp-on air filters with extra thick filtering mediums to provide increased protection in high dust conditions.  Both filters also have a K&N XStream® top that adds extra filter area.  This allows greater air flow and a longer time between cleaning. 

K&N extreme duty universal air filter part number, RX-4730XD
K&N extreme duty universal air filter part number, RX-4730XD
K&N RX-4730XD and K&N RX-3810XD are a round tapered universal air filters designed with a deep pile design, extra fine weave grade cotton and alternative geometries for added efficiency and capacity in off-road conditions.  Like other K&N universal XD filters these filters come pre-treated with K&N filter oil and are ready for use right out of the box. 

K&N extreme duty universal air filter part number, RX-3810XD
K&N extreme duty universal air filter part number, RX-3810XD
The RX-4730XD universal clamp on air filter has a flange inside diameter of 3 inches (76 mm) and a height of 6.5 in (165 mm).  The RX-3810XD has a flange inside diameter of 2.438 inches (62 mm) and a height of 6.125 in (156 mm).

The XD cotton medium was developed for the extreme conditions encountered by race teams in the Baja 1000. This real world testing is combined with testing performed at K&N’s own dust retention laboratory.

Instructions are included with the RX-4730XD and RX-3810XD. K&N universal XD air filters are washable, reusable and are warranted against defective material or workmanship for one year from the date of purchase with no mileage limitations.

K&N consistently adds new universal air filters to its extensive catalog. Regardless of the shape or size of your needs K&N probably has a universal air filter to fit. Find K&N universal air filters by using the Universal Air Filter Search by Dimension on

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

K&N Performance Air Filters

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K&N Engineering, Inc., with headquarters in Riverside, California, has been the world's leader in performance filter technology since 1969, serving the needs of the automotive, motorcycle, marine, industrial and military markets. K&N is heavily involved in nearly every form of motorsports from off-road and powersports to drag racing, stock cars and road racing. For more information about K&N Filters, please contact K&N Engineering, Inc., P.O. Box 1329, Riverside, CA 92502-1329, (800) 213-4182 for a dealer near you, (800) 858-3333 for technical service/questions, (951) 826-4001 Fax, e-mail, or visit