K&N RU-2805XD XD Off-Road Clamp-On Round Tapered Air Filter 5in Flange 6.5in OD

Vehicle Fitment

• Universal Fit - Designed for off-road vehicles, performance cold air intakes, racing builds, and any application with a 5.00 in. intake tube demanding superior filtration in high-dust conditions

Fitment Notes

• This is a universal clamp-on filter - verify your intake tube outside diameter matches the flange inside diameter of 5.00 in. before purchasing
• Rubber flange can be stretched up to 1/16 in. (1.5 mm) to accommodate in-between sizes or angled intake configurations
• Can be cleaned using the same K&N Recharger kit as standard K&N cotton gauze filters
• Not a direct OEM replacement for a specific vehicle - confirm fitment by measuring your intake tube diameter

Features

• K&N XD Series - Deep Pile Design with extra-fine weave grade cotton developed for Baja 1000 extreme off-road race conditions
• Extra-thick filtering medium provides superior protection and dust-holding capacity in high-dust environments
• Large round tapered (cone) design provides exceptional filter surface area for high-CFM airflow performance
• Ultra-strong molded pliable rubber flange absorbs vibration and provides a secure, leak-free attachment
• Washable and reusable - cleans the same way as standard K&N cotton filters
• Pre-oiled and ready to install straight out of the box
• Made in the USA
• Backed by K&N's 10-Year/Million Mile Limited Warranty

Specifications

• Series: K&N XD (Extreme Duty)
• Shape: Round Tapered (Cone)
• Flange Inside Diameter: 5.00 in. (127 mm)
• Flange Length: 1.00 in. (25 mm)
• Flange Type: Centered (Single)
• Base Outside Diameter: 6.50 in. (165 mm)
• Top Outside Diameter: 4.25 in. (108 mm)
• Height: 8.00 in. (203 mm)
• Filter Material: Deep pile extra-fine weave grade cotton gauze
• Filter Re-Oiling Amount: 2.41 oz (71 ml)
• Filter Color: Red
• Top Style: Rubber End Cap
• Inner Wire: No
• Weight: 1.40 lb (0.7 kg)

Included Components

• 1x K&N RU-2805XD XD Series Universal Clamp-On Round Tapered Air Filter

Product Description

The K&N RU-2805XD is part of K&N's XD (Extreme Duty) Series - a line of clamp-on filters engineered specifically for off-road racing and high-dust environments. Developed from real-world testing at the Baja 1000 and validated against the ISO 5011 test protocol at K&N's own Dust Retention Laboratory, the XD Series uses a deep pile design and extra-fine weave grade cotton that delivers increased dust-holding capacity and filtration efficiency compared to standard cotton gauze filters. At 8 inches tall with a 6.50-inch base OD and a 5-inch flange, this large-format cone filter supports serious high-CFM intake flows while keeping contaminants out in the harshest conditions.

Despite its extreme-duty construction, the RU-2805XD can be cleaned using the same K&N Recharger service kit as any standard K&N filter - simply wash, dry, and re-oil. The centered 5.00 in. rubber flange mounts securely onto matching intake tubes, absorbs vibration, and can be stretched slightly to fit in-between sizes. Washable and reusable, it arrives pre-oiled and is ready to install out of the box. Made in the USA and backed by K&N's 10-Year/Million Mile Limited Warranty, the RU-2805XD is the go-to choice for any off-road or high-performance application demanding maximum protection in demanding environments.