Top 10 Best Air Filter For 400ex [2022]

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NoProductScoreAction
1K&N Engine Air Filter: High Performance9.6Buy On Amazon
2AloneGoer 17254-HN1-000 400EX Air Filter Compatible with Pioneer 500 Air Filter Foreman TRX400EX TRX400X TRX420FA TRX420FE TRX420FM TRX420TE TRX420TM TRX500FA TRX500FE TRX500FM SXS500M9.6Buy On Amazon
3HIFROM ATV Air Filter Element Cleaner Replacement for Honda TRX400EX TRX400X TRX420FA1 TRX420FA2 TRX420FE TRX420FM TRX420TM TRX420TE TRX500FM TRX500FE TRX500FM Replace 17254-HN1-000 (Pack of 1)9.6Buy On Amazon
4Physeed 17254-HN1-000 TRX 400EX Air Filter Oil Spark Plug Replacement for Sportrax 400 Rubicon Pioneer 500 TRX500FM TRX500FE TRX500FPE TRX500FPM TRX400X TRX420FA ATV9.2Buy On Amazon
5Uni Dual Stage Air Filter for Honda Foreman 450 Fourtrax 300 Rancher 350 400 TRX3009.2Buy On Amazon
6400EX Air Filter for Compatible with Foreman Dual Stage 17254-HN1-000 500 4x4 (TRX500FM9Buy On Amazon
7TOP NOTCH PARTS PISTON CYLINDER GASKET RINGS AIR FILTER TOP END KIT SET FITS HONDA TRX400EX TRX 400EX 1999 2000 2001 2002 2003 2004 2005 2006 2007 20089Buy On Amazon
8Tvent 17254-HN1-000 Air Filter TRX400 Replacement for TRX400X TRX420FA TRX420FE TRX420FM TRX420TE TRX420TM TRX400EX TRX500 TRX500FA TRX500FM TRX500FE TRX500FPE (Pack of 2)9Buy On Amazon
9Uni Filter NU-4119ST 2-Stage Air Filter8.8Buy On Amazon
10Uni Filter NU-4126ST 2-Stage Air Filter8.2Buy On Amazon
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1. K&N Engine Air Filter: High Performance

  • ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle
  • ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%.
  • EASY INSTALLATION: Pre-oiled and ready to install One of the easiest and most cost-effective upgrades for your motorcycle or ATV for quick performance gains.
  • SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
  • ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste A K&N filter will last longer than 10 disposable filters.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
  • HIGH QUALITY: Made in America

2. AloneGoer 17254-HN1-000 400EX Air Filter Compatible with Pioneer 500 Air Filter Foreman TRX400EX TRX400X TRX420FA TRX420FE TRX420FM TRX420TE TRX420TM TRX500FA TRX500FE TRX500FM SXS500M

  • Replace number: 17254-HN1-000
  • Replace TRX400EX TRX400X 1999-2014; TRX420FA TRX420FE TRX420FM TRX420TE TRX420TM 2014-2020
  • Replace TRX500FA TRX500FE TRX500FM TRX500FPE TRX500FPM 2012-2019; TRX520FA TRX520FE TRX520FM 2020
  • Replace TRX650FA TRX650FGA 2004-2005; SXS500M 2015-2020
  • Package include: 2x air filter

3. HIFROM ATV Air Filter Element Cleaner Replacement for Honda TRX400EX TRX400X TRX420FA1 TRX420FA2 TRX420FE TRX420FM TRX420TM TRX420TE TRX500FM TRX500FE TRX500FM Replace 17254-HN1-000 (Pack of 1)

  • High quality replacement air filter element parts replacement for honda engine.
  • Air filter replacement for Honda TRX400EX,TRX400X,TRX420FA1,TRX420FA2,TRX420FE,TRX420FM,TRX420TM,TRX420TE,TRX500FM,TRX500FE,TRX500FPE,TRX500FPM,SXS500M,TRX500FA,TRX500FGA,TRX500FA,TRX500FM,TRX650FA & TRX650FGA,mmore details please see below.
  • 3. ATV Element Air Filter replace replacement for honda parts # 17254-HN1-000
  • 4. Package included: 1 x air filter
  • HIFROM focus on provide high quality products at fair price: Professional factory,Professional technical support; 3 Months warranty; if you unsatisfy with our product,you can return to our USA warehouse,no risk.

4. Physeed 17254-HN1-000 TRX 400EX Air Filter Oil Spark Plug Replacement for Sportrax 400 Rubicon Pioneer 500 TRX500FM TRX500FE TRX500FPE TRX500FPM TRX400X TRX420FA ATV

  • Replace # : 17254-HN1-000
  • For TRX400EX Sportrax 1999-2008; TRX400X Sportrax 2009 / 2012-2014; ; Rincon 650 4×4 (TRX650FA & TRX650FGA) 2003-2005.
  • For Rancher 420 (TRX420FA1, TRX420FA2, TRX420FE, TRX420FM, TRX420TM & TRX420TE) 2014-2016; Rubicon 500 4×4 Auto (TRX500FM) 2016.
  • For Foreman 500 4×4 (TRX500FM, TRX500FE, TRX500FPE & TRX500FPM) 2012-2016; Rubicon 500 4×4 (TRX500FA) 2015-2016.
  • For Pioneer 500 (SXS500M) 2015-2016; Rubicon 500 4×4 (TRX500FA & TRX500FGA) 2001-2004

5. Uni Dual Stage Air Filter for Honda Foreman 450 Fourtrax 300 Rancher 350 400 TRX300

6. 400EX Air Filter for Compatible with Foreman Dual Stage 17254-HN1-000 500 4×4 (TRX500FM

  • UNIVERSAL FIT:400EX Air Filter for Compatible with Foreman 17254-HN1-000
  • WORKS FOR BRANDS: Fits Compatible with : TRX400EX (98-08) TRX400X (09-14) TRX420FA (14-16) TRX420FE (14-16) TRX420FM (14-16) TRX420TE/TM (14-16) TRX500FA Compatible with Rubicon (01-04, 15 & 16) TRX500FE Compatible with Foreman 4×4 ES (12-16) TRX500FGA Compatible with Foreman Rubicon/GPScape (04) TRX500FM Compatible with Foreman 4×4 (12-16) TRX500FPE Compatible with FourTrax Foreman 4×4 (12 & 13) TRX500FPM.
  • Replacement For: Compatible with 17254-HN1-000 NU4126ST320-20 Parts NU-4126ST 14-9003
  • Fits the Compatible with Models listed below: 1999 – 2008 Compatible with Sportrax TRX400EX 2009 / 2012 – 2014 Compatible with Sportrax TRX400X 2014 – 2016 Compatible with Rancher 420 (TRX420FA1, TRX420FA2, TRX420FE, TRX420FM, TRX420TM & TRX420TE).
  • PACKAGE INCLUDES1pc Air Filter,Non original aftermarket part,The part/product is not sponsored or endorsed by,or affiliated with the brands it fit.

7. TOP NOTCH PARTS PISTON CYLINDER GASKET RINGS AIR FILTER TOP END KIT SET FITS HONDA TRX400EX TRX 400EX 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

  • REPLACES OEM NUMBER: 12100-KCY-670 12191-KCY-672 13011-KCY-670 13101-KCY-670 90601-KA5-000 13111-KCY-670 12251-HN1-003 12391-KCY-671 14560-KCW-851.
  • AFTERMARKET REPLACEMENT HONDA TRX400EX CYLINDER PISTON TOP END KIT
  • PURCHASE INCLUDES: 1X CYLINDER 1X PISTON.
  • PARTS FIT: 1999 – 2008 HONDA TRX400EX.

8. Tvent 17254-HN1-000 Air Filter TRX400 Replacement for TRX400X TRX420FA TRX420FE TRX420FM TRX420TE TRX420TM TRX400EX TRX500 TRX500FA TRX500FM TRX500FE TRX500FPE (Pack of 2)

  • Air Filter Replacement for Foreman 17254-HN1-000
  • Replacement for Foreman Rubicon 500,TRX500FA Rubicon (01-04, 15-16),TRX500FE Foreman 4×4 ES (12-16),TRX500FGA Foreman Rubicon/GPScape (04),TRX500FM Foreman 4×4 (12-16),TRX500FPE FourTrax Foreman 4×4 (12-13),TRX500FPM Foreman 4×4 EPS (12-13),TRX650FA/FGA Fourtrax Rincon (03-05).
  • Package include: 2 x air filter
  • We provide 180 days money back guarrantee! Lifetime warranty against manufacturer defect!

9. Uni Filter NU-4119ST 2-Stage Air Filter

  • 2-stage filtration increases performance and engine life
  • Dual filters trap dirt, keep motors running clean even under the most severe conditions
  • Completely washable
  • Fit type: Vehicle Specific

10. Uni Filter NU-4126ST 2-Stage Air Filter

  • Manufactured by Uni Designed to fit in the factory air box exactly like the original filter Uni filter’s unique two stage design allows for easy & complete cleaning.
  • UNI Brand Established in 1971
  • Race proven technologies
  • Durable long lasting filters