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K&N HA-4517XD - Replacement Air Filter

K&N HA-4517XD - Replacement Air Filter


K&N HA-4517XD - Single



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  • Description
  • Benefits
  • Technical Info
  • Cross References
  • Fitment / Compatibility
  • Shipping Explained

K&N HA-4517XD - Replacement Air Filter

General Details:

Length [mm]219
Width [mm]133
Height [mm]100
Filter typeLong-life Filter

Additional Images:

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The K&N HA-4517XD fits some Honda CRF450R, Honda CRF450RWE, and Honda CRF450RX models. K&N XStream Series Motocross Air Filters take performance to the next level with the addition of a filter within the filter's top in order to add even more filtration area for high air-flow and capacity. Each filter piece has pleated media which creates a large surface area that provides high airflow and great dirt holding capacity for extreme conditions. The two-piece design eases installation and removal on modern narrow-framed MX bikes. The epoxy-coated aluminium wire mesh, incorporated into a backfire screen, protects the filter element from harmful debris. A custom base seal ensures a precise and secure fit. K&N air filters are washable and re-usable and they come pre-oiled and ready to use!

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

PDF Downloads:

Download the Technical PDF


  • Large surface area for long service life
  • Low restriction
  • Washable and reusable
  • Outstanding filtration

Technical Information:

  • Air Filter Shape: Unique
  • Filter Material: Cotton Gauze
  • Flanges: None
  • Height: 2.375 in (60 mm)
  • Package Contents: 1 Air Filter, 1 K&N 1oz Sealing Grease, 2 Washers
  • Package Quantity: 1
  • Washable: Yes
  • Product Style: Unique Air Filters
  • Base Outside Length: 8.625 in (219 mm)
  • Top Outside Length: 5.25 in (133 mm)
  • Weight: 1.6 lb (0.7 kg)
  • Product Box Height: 9 in (229 mm)
  • Product Box Length: 9 in (229 mm)
  • Product Box Width: 4.63 in (117 mm)
  • Warranty: 1 Year Limited

Fitment / Compatibility:

  • 2019 Honda CRF450RX 449
    All Models
  • 2019 Honda CRF450RWE 449
    All Models
  • 2019 Honda CRF450R 449
    All Models
  • 2018 Honda CRF450RX 449
    All Models
  • 2018 Honda CRF450R 449
    All Models
  • 2017 Honda CRF450RX 449
    All Models
  • 2017 Honda CRF450R 449
    All Models

Cross Reference:

  • Honda 17213MKEA00
  • UNI NU4148ST


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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