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K&N Air filter RK-3921
No stock, ask for availibility
Fast delivery
14 day return policy
Secure Payment
Responsive Customer Service
€575.81
Fast delivery
Fast and reliable shipping across the World
14 day return policy
Changed your mind? You can return your order within 14 days (EU/EEA customers).
Secure Payment
All payments are encrypted and processed securely through a trusted provider.
Responsive Customer Service
We always respond quickly – wherever you're contacting us from.
Air filter - cartridge
RK-3921
Data sheet
- Harley-Davidson
- FLHR Road King 1994
FLHR Road King 1995
FLHR Road King 1996
FLHR Road King 1997
FLHS Electra Glide Sport 1992
FLHS Electra Glide Sport 1993
FLHTC Electra Glide Classic 1992
FLHTC Electra Glide Classic 1993
FLHTC Electra Glide Classic 1994
FLHTC Electra Glide Classic 1995
FLHTC Electra Glide Classic 1996
FLHTC Electra Glide Classic 1997
FLHTCU Electra Glide Ultra Classic 1992
FLHTCU Electra Glide Ultra Classic 1993
FLHTCU Electra Glide Ultra Classic 1994
FLHTCU Electra Glide Ultra Classic 1995
FLHTCU Electra Glide Ultra Classic 1996
FLHTCU Electra Glide Ultra Classic 1997
FLHTCU Electra Glide Ultra Classic Annv. 1993
FLHTCUI Electra Glide Ultra Classic F/I 1992
FLHTCUI Electra Glide Ultra Classic F/I 1994
FLHTCUI Electra Glide Ultra Classic F/I 1996
FLHT Electra Glide Standard 1995
FLHT Electra Glide Standard 1996
FLHT Electra Glide Standard 1997
FLSTC Heritage Softail Classic 1992
FLSTC Heritage Softail Classic 1993
FLSTC Heritage Softail Classic 1994
FLSTC Heritage Softail Classic 1995
FLSTC Heritage Softail Classic 1996
FLSTC Heritage Softail Classic 1997
FLSTF Fat Boy 1992
FLSTF Fat Boy 1993
FLSTF Fat Boy 1994
FLSTF Fat Boy 1995
FLSTF Fat Boy 1996
FLSTF Fat Boy 1997
FLSTN Heritage Softail Nostalgia 1993
FLSTN Heritage Softail Special 1994
FLSTN Heritage Softail Special 1995
FLSTN Heritage Softail Special 1996
FLSTS Heritage Springer 1997
FLTC Tour Glide Classic 1992
FLTC Tour Glide Classic 1993
FLTCU Ultra Tour Glide Annv. 1993
FLTCU Ultra Tour Glide Classic 1992
FLTCU Ultra Tour Glide Classic 1993
FLTCU Ultra Tour Glide Classic 1994
FLTCU Ultra Tour Glide Classic 1995
FXDB Dyna Glide Daytona 1992
FXDC Dyna Glide Custom 1992
FXD Dyna Super Glide 1995
FXD Dyna Super Glide 1996
FXD Dyna Super Glide 1997
FXDL Dyna Low Rider 1994
FXDL Dyna Low Rider 1995
FXDL Dyna Low Rider 1996
FXDL Dyna Low Rider 1997
FXDS Dyna Convertible 1996
FXDS Dyna Convertible 1997
FXDS Dyna Low Rider Conv. 1994
FXDS Dyna Low Rider Conv. 1995
FXDWG Dyna Wide Glide 1993
FXDWG Dyna Wide Glide 1994
FXDWG Dyna Wide Glide 1995
FXDWG Dyna Wide Glide 1996
FXDWG Dyna Wide Glide 1997
FXLR Low Rider Custom 1992
FXLR Low Rider Custom 1993
FXLR Low Rider Custom 1994
FXLR Low Rider Custom Annv. 1993
FXRS-SP Low Rider Sport 1992
FXRS-SP Low Rider Sport 1993
FXRS Low Rider 1992
FXRS Low Rider 1993
FXRS Low Rider Conv. 1992
FXRS Low Rider Conv. 1993
FXR Super Glide 1992
FXR Super Glide 1993
FXR Super Glide 1994
FXRT Sport Glide 1992
FXSTC Softail Custom 1992
FXSTC Softail Custom 1993
FXSTC Softail Custom 1994
FXSTC Softail Custom 1995
FXSTC Softail Custom 1996
FXSTC Softail Custom 1997
FXSTSB Bad Boy 1995
FXSTSB Bad Boy 1996
FXSTSB Bad Boy 1997
FXSTS Springer Softail 1992
FXSTS Springer Softail 1993
FXSTS Springer Softail 1994
FXSTS Springer Softail 1995
FXSTS Springer Softail 1996
FXSTS Springer Softail 1997 - Delivery
- No stock, ask for availibility
Returns Policy
EU/EEA customers have a 14-day right of return from the day the goods are received. The goods must be unused, with tags attached and in the original packaging.
All returns must be pre-approved: e-mail info@mrttech.ee within 14 days of receiving the goods, stating the order number, and wait for our written confirmation before sending anything back. Return shipping is arranged and paid for by the customer.
Once we have received and inspected the returned goods, we issue the refund within 14 days. Where possible we refund using the original payment method (for example PayPal or Stripe), otherwise by bank transfer.
Shipping
Parcel machine (Estonia, Latvia, Lithuania, Finland) – €9.90. Courier (non-express) – from €19.00, within the EU and internationally, with the exact cost calculated at checkout. Collection in store at Taevakivi 1, Tallinn – free. Free delivery on orders of €500 or more. Prices include VAT where applicable.
In-stock items are normally dispatched within 1–3 working days from release from our warehouse. Delivery times are estimates, not guarantees — some items may take longer, for example when ordered in specially or during stock or supplier delays. We are not liable for delays beyond our reasonable control, but we always make reasonable efforts to deliver at the earliest opportunity. This does not affect any statutory rights the customer may have as a consumer.
See our full delivery and return terms: shop.mrttech.ee/en/content/1-delivery
Do you have questions about this product: K&N Air filter RK-3921?
If you encounter problems or need additional help, contact our customer support. We’ll be happy to assist you.