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K&N

K&N RK-3951 Intake System (Harley Davidson)

  • Based on 26 reviews
Condition: New
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$241.36 Why this price?
Save $58.63 was $299.99

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Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 7 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Jun 4
Order within 17 hours and 48 minutes
Available payment plans shown during checkout

Features

  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Cast aluminum high-volume, performance air intake housing
  • Washable and reusable K&N high-flow cotton air filter that provides outstanding performance and protection
  • Integrated internal velocity stack

Description

K&N street metal air intake systems for Harley Davidson motorcycles increase power by replacing the restrictive stock OE air cleaner with an oversized K&N high-flow air filter and a cast aluminum high-volume aluminum housing. This K&N high-flow air intake system gives your Harley an aggressive appearance while providing a significant increase in airflow, resulting in more power. Some K&N air intakes are not legal for sale or use in California and other States adopting California emission standards while others are 50 state legal. VIEW the vehicle applications to determine the legal status for each vehicle.

Product Grade: Performance Part


Brand: K&N


OEM Part Number: RK-3951


Manufacturer: ‎K&N Engineering


Brand: ‎K&N


Model: ‎RK-3951


Item Weight: ‎4.72 pounds


Country of Origin: ‎China


Item model number: ‎RK-3951


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎RK-3951


OEM Part Number: ‎RK-3951


Date First Available: February 10, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • It works for me
Easy swap out performs great looks good excellent finish to my stage 1 on my 08 Electra Glide ultra classic it does stick out a bit further than the factory one does I'm 6 foot so it doesn't bother me but someone with shorter legs might not like it
Reviewed in the United States on April 8, 2024 by Augie Ramos

  • Air intake
Wow! Great product, amazing look, fit perfectly.
Reviewed in the United States on July 5, 2023 by Arthur,N.Rumrill Arthur,N.Rumrill

  • Pretty straight forward.
Easy to install and I’m just hoping I don’t have to “tune” my 2008 streetglide. 106”
Reviewed in the United States on May 16, 2023 by Rox Rox

  • Very easy to install
I love the added performance and the way it looks on my bike
Reviewed in the United States on July 5, 2019 by Amazon Customer

  • Love the look but for some reason it didn't fit ...
Love the look but for some reason it didn't fit my bike I ad to make spacers for it
Reviewed in the United States on November 10, 2017 by Stephane Mousse

  • Two Stars
No send it back
Reviewed in the United States on July 23, 2017 by Dnnorm

  • perfect fit
easy installation perfect fit looks awsome
Reviewed in the United States on December 28, 2021 by glenn johnson

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