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Performance Engine Oils
K&N Universal Clamp-On - RU-2805XD - 5"FLG. 6-1/2"B, 4-1/4"T, 8"H

K&N Universal Clamp-On - RU-2805XD - 5"FLG. 6-1/2"B, 4-1/4"T, 8"H


K&N RU-2805XD - Single



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  • Description
  • Benefits
  • Technical Info
  • Shipping Explained

K&N Universal Clamp-On - RU-2805XD - 5"FLG. 6-1/2"B, 4-1/4"T, 8"H

K&N XD air filters use a Deep Pile Design Extra Fine Weave Grade Cotton and alternate geometries for added efficiency and capacity for off-road conditions. This extra thick filtering medium provides the increased protection demanded by high dust conditions while continuing to provide the performance necessary to stay in the front of the pack. 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 in conformity with the ISO 5011 test protocol. XD Cotton Air filters can be cleaned in the same way as K&N's original cotton air filters.

Please use our online lookup to find the correct air filter for your vehicle or contact us for more help.


  • Outstanding protection in harsh dusty conditions
  • Washable and reusable
  • Long service life
  • Low restriction

Technical Information:

  • Air Filter Shape: Round Tapered
  • Base Inside Diameter: 5 in (127 mm)
  • Base Outside Diameter: 6.5 in (165 mm)
  • Filter Material: Cotton Gauze
  • Filter Re-Oiling Amount: 2.41 oz (71 ml)
  • Flange Inside Diameter: 5 in (127 mm)
  • Flange Length: 1 in (25 mm)
  • Flanges: 1
  • Height: 8 in (203 mm)
  • Inner Wire: No
  • Package Contents: 1 Air Filter
  • Package Quantity: 1
  • Product Box Height: 11 in (279 mm)
  • Product Box Length: 6.38 in (162 mm)
  • Product Box Width: 6.38 in (162 mm)
  • Product Style: Tapered Conical Air Filter
  • Top Material/Finish: None
  • Top Outside Diameter: 4.25 in (108 mm)
  • Top Style: Rubber
  • Weight: 1.4 lb (0.7 kg)


SHIPPING IS FREE* for orders of £75 and over , regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.

Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).

  • *Free shipping is available for UK Royal Mail, UPS Access Point™ (click & collect) and standard UK courier services (not express / priority / islands).
  • Courier surcharges mean we are unable to offer free "to the door" courier shipping from us in Cornwall up to Highlands / Grampian in Scotland - and because we send a lot of liquids, not every courier option is available to us. UPS Access Point™ (click & collect) is available as a free shipping option across Scotland, Wales and England, wherever there is a UPS Access Point™ Location.
  • Carriage charges are based on weight - please see our table of carriage costs for full details (although adding an item to your cart and viewing the calculated carriage is often easier!).
  • Priority shipping is also available.

How long will it take to get my order?

We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.

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