20 Best 400ex Rings [2024]

Are you looking for the best 400ex rings? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 400ex rings.

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1 NAMURA NA-10003R Standard Piston Ring for TRX 400EX NAMURA NA-10003R Standard Piston Ring for TRX 400EX
2 NAMURA NA-10003 Standard Piston Kit for 400EX NAMURA NA-10003 Standard Piston Kit for 400EX
3 TOP NOTCH PARTS PISTON CYLINDER GASKET RINGS AIR FILTER TOP END KIT SET FITS HONDA TRX400EX TRX... TOP NOTCH PARTS PISTON CYLINDER GASKET RINGS AIR FILTER TOP END KIT SET FITS HONDA TRX400EX TRX...
4 Wiseco 3347XC Ring Set for 85.00mm Cylinder Bore Wiseco 3347XC Ring Set for 85.00mm Cylinder Bore
5 TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX 99 00... TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX 99...
6 NewJ's 85mm 397cc Big Bore Cylinder Piston Rings Top End Kit fit for Honda TRX400EX TRX 400EX 440cc... NewJ's 85mm 397cc Big Bore Cylinder Piston Rings Top End Kit fit for Honda TRX400EX TRX 400EX...
7 NICHE Gasket Piston Ring Spark Plug Kit Combo for Honda 1996-2014 TRX400EX TRX400X XR400R... NICHE Gasket Piston Ring Spark Plug Kit Combo for Honda 1996-2014 TRX400EX TRX400X XR400R...
8 PAVOI 14K Gold Plated X Ring CZ Simulated Diamond Criss Cross Ring (9, White) PAVOI 14K Gold Plated X Ring CZ Simulated Diamond Criss Cross Ring (9, White)
9 TOP NOTCH PARTS CYLINDER PISTON HEAD POLISHED PORT COVER CAM SHAFT CAMSHAFT FITS HONDA TRX400EX TRX... TOP NOTCH PARTS CYLINDER PISTON HEAD POLISHED PORT COVER CAM SHAFT CAMSHAFT FITS HONDA TRX400EX...
10 NICHE 97cc Cylinder Piston Gasket Top End Kit for Honda Sportrax XR400R TRX400X TRX400EX... NICHE 97cc Cylinder Piston Gasket Top End Kit for Honda Sportrax XR400R TRX400X TRX400EX...
11 NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670... NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670...
12 TOP NOTCH PARTS CYLINDER PISTON GASKET OIL AIR FILTER TOP END KIT SET FITS YAMAHA RAPTOR 350 2004... TOP NOTCH PARTS CYLINDER PISTON GASKET OIL AIR FILTER TOP END KIT SET FITS YAMAHA RAPTOR 350 2004...
13 89mm 440cc Big Bore Cylinder Piston Gasket Kit for Honda Sportrax TRX400EX 99-08 89mm 440cc Big Bore Cylinder Piston Gasket Kit for Honda Sportrax TRX400EX 99-08
14 Honda 13010-ZH7-004 Ring Set (Std) Honda 13010-ZH7-004 Ring Set (Std)
15 WFLNHB New Big Bore Cylinder Piston Rings Top End Kit for 1999-2008 Honda Trx400ex 440cc WFLNHB New Big Bore Cylinder Piston Rings Top End Kit for 1999-2008 Honda Trx400ex 440cc
16 Top End Piston Gasket Kit Fit For Honda TRX400EX TRX400X Standard Bore 85mm Top End Piston Gasket Kit Fit For Honda TRX400EX TRX400X Standard Bore 85mm
17 NICHE Gold 520 X-Ring Chain 120 Links With Connecting Master Link NICHE Gold 520 X-Ring Chain 120 Links With Connecting Master Link
18 Chain fits Honda Sportrax 400EX TRX400EX 1999-2008 Non O-Ring Red 520-94L Chain fits Honda Sportrax 400EX TRX400EX 1999-2008 Non O-Ring Red 520-94L
19 WFLNHB 85mm Cylinder Piston Gasket Rebuild Kit Replacement for 1999-2008 Honda Sportrax TRX400EX TRX... WFLNHB 85mm Cylinder Piston Gasket Rebuild Kit Replacement for 1999-2008 Honda Sportrax TRX400EX...
20 Im Enough Themb Ring Adjustable Stainless Steel Silver Inspirational Opening Cute Stacking Hiphop... Im Enough Themb Ring Adjustable Stainless Steel Silver Inspirational Opening Cute Stacking Hiphop...
SaleBestseller No. 1
NAMURA NA-10003R Standard Piston Ring for TRX 400EX
  • Fits Namura Pistons: NA-10003 for: Honda XR400R 1996-2004, TRX400EX 1999-08, TRX400X 2009-14
  • Namura uses the best materials matching the ring design to its application
  • Often overlooked and unglamorous, they are an essential part of an engine's efficiency and durability
  • The materials used in the manufacturing of piston rings are one of the most critical factors in their performance
  • Meets or exceeds OEM specification, only use with Namura Pistons
Bestseller No. 2
NAMURA NA-10003 Standard Piston Kit for 400EX
  • Namura pistons are made to exact OEM specifications and are direct replacements for OEM pistons with no modifications or dimensional adjustments...
  • Piston kits come with the piston(s) individually wrapped, a set of OEM quality rings packed in their own box, wrist pin(s), and circlips
  • Namura pistons have MOS2 (Molybdenum/Teflon) skirt coatings, high-silicon aluminum and anodized domes
  • A, B and C pistons are available to help extend the life of expensive Nikasil, SCEM, Boron Composite and Ceramic Cylinders
  • Namura rings are made by Riken, the world's largest OEM manufacturer and are the same OEM rings used on more motorcycles and ATV's than any other...
Bestseller No. 3
TOP NOTCH PARTS PISTON CYLINDER GASKET RINGS AIR FILTER TOP END KIT SET FITS HONDA TRX400EX TRX...
  • 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. 1X PISTON PIN. 2X CIRCLIPS. 1X COMPLETE SET OF RINGS. 1X HEAD GASKET. 1X BASE GASKET. 1X HEAD COVER GASKET....
  • PARTS FIT: 1999 - 2008 HONDA TRX400EX.
  • ADULT SIGNATURE REQUIRED FOR DELIVERY
SaleBestseller No. 4
Wiseco 3347XC Ring Set for 85.00mm Cylinder Bore
  • 85.00 millimeter cylinder bore ring set
Bestseller No. 5
TOP NOTCH PARTS 440cc BIG BORE CYLINDER PISTON RINGS TOP END KIT FITS HONDA TRX400EX TRX 400EX 99 00...
  • 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
  • HONDA TRX 400EX 440cc BIG BORE CYLINDER PISTON TOP END KIT
  • PISTON TOP HAS A CERAMIC COATING PROVIDING SUPERIOR HEAT RESISTANCE WHICH WILL EXTEND THE LIFE SPAN OF THE PISTON. * THIS IS THE BEST QUALITY KIT ON...
  • PURCHASE INCLUDES: 1X CYLINDER 1X PISTON. 1X PISTON PIN. 2X CIRCLIPS. 1X COMPLETE SET OF RINGS. 1X HEAD GASKET. 1X BASE GASKET. 1X HEAD COVER GASKET....
  • PARTS FIT: 1999 - 2008 HONDA TRX 400EX.
Bestseller No. 6
NewJ's 85mm 397cc Big Bore Cylinder Piston Rings Top End Kit fit for Honda TRX400EX TRX 400EX 440cc...
  • 🚩 Aftermarket Replacement Cylinder Piston Big Bore Kit
  • 🚩 Cylinder Piston Gasket Rings Top End Kit Set Fit for Honda TRX400EX 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
  • 🚩 Replace Cylinder Piston Kit Compatible with Part Number(s): 12100-KCY-670, 12191-KCY-672, 13011-KCY-670, 13101-KCY-670, 90601-KA5-000,...
  • 🚩 Cylinder Bore and Stroke 85mm x 70mm;397cc Displacement;9.1:1 Compression .Direct replacement part fit for the old or broken one
  • 🚩 Please make sure this part fits before purchase
Bestseller No. 7
NICHE Gasket Piston Ring Spark Plug Kit Combo for Honda 1996-2014 TRX400EX TRX400X XR400R...
  • Replaces OEM Part Numbers: Honda 13011-KCY-670, 13101-KCY-670,13111-KCY-670, 90601-KA5-000 98061-59616, 12251-HN1-A41,12391-KCY-671
  • Compatible with the 1996-2004 Honda XR400R, 1999-2008 Honda Sportrax TRX400EX, 2009, 2012-2014 Honda TRX400X
  • Includes Piston 85mm Std, Piston Rings, Piston Pin, Circlips, Head Gasket, Base Gasket
  • 85mm Standard Bore Piston made from the Strongest Materials to keep it in your Vehicle Longer
  • Quality and Performance Guaranteed
Bestseller No. 8
PAVOI 14K Gold Plated X Ring CZ Simulated Diamond Criss Cross Ring (9, White)
  • Criss Cross Ring with AAAAA+ Quality Cubic Zirconia plated in Rhodium
  • Beautiful X Ring is Nickel Free and Guaranteed to be Hypoallergenic
  • ✦ MADE WITH LOVE ✦ This unique and heartfelt product is beautifully packaged and ready for giving. Makes a sentimental surprise for any...
  • ✦ 90 DAY GUARANTEE ✦ To Ensure Your Complete Satisfaction, We Offer a 90 Day No-Questions-Asked Money Back Guarantee. All the metals we...
  • ✦ PROUDLY AMERICAN OWNED ✦ We are an American owned and operated company! Please search PAVOI on Amazon for more of our designs!
Bestseller No. 9
TOP NOTCH PARTS CYLINDER PISTON HEAD POLISHED PORT COVER CAM SHAFT CAMSHAFT FITS HONDA TRX400EX TRX...
  • Replaces OEM Part # 14000-HN1-000, 13011-KCY-670, 13101-KCY-670, 12100-KCY-670, 12200-KCY-670, 12310-HN1-010
  • FITS HONDA TRX 400EX CYLINDER BLOCK, CYLINDER HEAD POLISHED INTAKE AND EXHAUST PORT, VALVE COVER & PERFORMANCE CAMSHAFT
  • CAMSHAFTDOES NOT USE THE AUTO-DECOMPRESSION MECHANISM
  • PURCHASE INCLUDES: 1X CYLINDER HEAD. 1X VALVE COVER. 1X CYLINDER. 1X CAMSHAFT. 1X PISTON. 1X PISTON PIN. 2X CIRCLIPS. 1X COMPLETE SET OF RINGS. 1X...
  • PARTS FIT: 1999 - 2008 HONDA TRX 400EX
Bestseller No. 10
NICHE 97cc Cylinder Piston Gasket Top End Kit for Honda Sportrax XR400R TRX400X TRX400EX...
  • Replaces OEM Part Numbers: Honda 12100-KCY-670, 12100-HN1-A70,13101-KCY-670, 13011-KCY-670,13111-KCY-670, 90601-KA5-000,12251-HN1-003,...
  • Compatible with Honda 1996-2004 XR400R, 1999-2008 Sportrax TRX400EX, 2009, 2012-2014 TRX400X
  • Includes Cylinder, Cylinder Head, Cylinder Head Cover, Piston, Piston Rings, Wristpin, Circlips
  • Head Gasket, Base Gasket, Head Cover Gasket, Chain Tension Gasket, O-Ring and Spark Plug
  • 85mm x 70mm Bore and Stroke, 9.1:1 Compression, 397cc Displacement
Bestseller No. 11
NICHE 440cc Big Bore Cylinder Piston Kit for Honda Sportrax TRX400EX TRX400X XR400R 13111-KCY-670...
  • Replaces OEM Part Numbers: Honda 12100-HN1-A70, 12191-KCY-672,13011-KCY-670, 90601-KA5-000,13101-KCY-670, 13111-KCY-670,91301-428-003,...
  • Compatible with Honda 1996-2004 XR400R, 1999-2008 Sportrax TRX400EX, 2009, 2012-2014 TRX400X
  • Includes Cylinder (89mm), Piston, Piston Rings, O-Rings (2), Wristpin and Circlips (2)
  • Also Includes Base Gasket and Head Gasket
  • Cylinder Bore and Stroke 89.00mm x 70.00mm
Bestseller No. 12
TOP NOTCH PARTS CYLINDER PISTON GASKET OIL AIR FILTER TOP END KIT SET FITS YAMAHA RAPTOR 350 2004...
  • Replaces OEM Part # 1UY-11310-03-00, 1UY-11631-Y0
  • CYLINDER PISTON GASKET OIL AIR FILTER TOP END KIT SET FITS YAMAHA RAPTOR 350 2004 2005 2006 2007 2008 2009 2010 2011
  • PURCHASE INCLUDES: CYLINDER BLOCK. PISTON. PISTON RING KIT. PISTON PIN. CIRCLIPS. CYLINDER HEAD GASKET. PAPER CYLINDER BLOCK GASKET CHAIN TENSIONER,...
Bestseller No. 13
89mm 440cc Big Bore Cylinder Piston Gasket Kit for Honda Sportrax TRX400EX 99-08
  • The cylinder Bore and Stroke is 89 mm x 70 mm
  • The cylinder Displacement 440cc / Compression 10:1
  • This product is tested to Exceed Original Equipment Standards and Performance
  • This product includes Piston Kit, Gasket Kit, OE Type Cylinder
  • The products are direct Replacement Parts for Hassle-Free Installation
Bestseller No. 14
Honda 13010-ZH7-004 Ring Set (Std)
  • Honda 13010-ZH7-004 Ring Set (Std)
Bestseller No. 15
WFLNHB New Big Bore Cylinder Piston Rings Top End Kit for 1999-2008 Honda Trx400ex 440cc
  • Big Bore Cylinder Piston Rings Top End Kit for 1999-2008 Honda Trx400ex 440cc
  • Replaces Part :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
  • Package Including:1x Cylinder 1x Piston. 1x Piston Pin. 2x Circlips. 1x Complete Set of Rings.
  • 1x Head Gasket. 1x Base Gasket. 1x Head Cover Gasket. 1x Chain Tensioner Gasket.
  • 1x Gasket Maker. 1x Thread Lock. 1x Fuel Filter. 1x Oil Filter. 1x Free Ngk Spark Plug.
Bestseller No. 16
Top End Piston Gasket Kit Fit For Honda TRX400EX TRX400X Standard Bore 85mm
  • Kit includes piston, rings, pin, clips, & top end gasket kit (you get exactly what is pictured)
  • Kit is for standard bore size - 85.00mm
  • Piston is 84.97mm
  • 11:1 Compression ratio
  • For Honda TRX400EX TRX400X Standard Bore 85mm
Bestseller No. 17
NICHE Gold 520 X-Ring Chain 120 Links With Connecting Master Link
  • Ultra-High-Performance X-Ring Drive Chain | 520 Pitch |120 Links| Premium X-Rings | Master Connecting Link Type - Clip for Easy Install | Tensile...
  • Niche X-Ring Drive Chain Reduces Chain Friction, Extends Seal Life, Improves Seal Performance in Comparison to O-Ring Alternatives. Manufactured for...
  • Expertly Crafted with Quad-Riveted Pins, Hardened Steel Components and Premium NBR X-Rings, Niche X-Ring Drive Chains are Ultra-High-Performance...
  • Replaces OEM: Honda : 40540-K87-A02, 40540-K95-A21, 40540-K95-A41, 40540-K95-A51, 40540-KCN-306, 40540-KCR-306, 40540-KPM-305, 40540-KRN-A31,...
  • Product Disclaimer: Always refer to and verify recommended manufacturer specifications including required tensile strength for your application prior...
Bestseller No. 18
Chain fits Honda Sportrax 400EX TRX400EX 1999-2008 Non O-Ring Red 520-94L
  • 520-94L Red Non O-Ring Chain
  • Race-Driven Non-O-Ring Chain's tensile strength = 7600+ lbs. All chains include masterlink.
  • Non-O-Ring chain doesn't have o-rings between the links so it is lighter, thinner and has less drag.
  • Fits: 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 Honda TRX400EX
SaleBestseller No. 19
WFLNHB 85mm Cylinder Piston Gasket Rebuild Kit Replacement for 1999-2008 Honda Sportrax TRX400EX TRX...
  • Replacement for: 1999-2008 Honda Sportrax TRX400EX
  • Part Number: 12100-HN1-A70, 12191-KCY-672, 13011-KCY-670
  • The kit includes brand new cylinder, piston, piston pin, circlips, complete set of rings, head gasket and base gasket as pictured shown, this is a...
  • Product Specification: 85 mm x 70 mm bore and stroke, 397cc displacement, 9.1:1 compression
  • We guarantee a great fit and this kit includes the best warranty. Quality and performance is guaranteed
Bestseller No. 20
Im Enough Themb Ring Adjustable Stainless Steel Silver Inspirational Opening Cute Stacking Hiphop...
  • The ring design is simple but rich in connotation.
  • Inspirational text reminds people not to give up all the time, encourage people to overcome the disease, emotional, career is not smooth...
  • Material: environmentally friendly steel and titanium; hypoallergenic, sturdy, non-fading, comfortable to wear.
  • Size: 0.79in in diameter, can be adjusted according to your own fingers, suitable for most people to wear.
  • The perfect gift: Valentine's Day, Thanksgiving Day, Father's Day, Mother's Day, birthday present, Christmas. Sending a family, sending a friend,...

Having trouble finding a great 400ex rings?

This problem is well understood by us because we have gone through the entire 400ex rings research process ourselves, which is why we have put together a comprehensive list of the best 400ex ringss available in the market today.

After hours of searching and using all the models on the market, we have found the best 400ex rings for 2023. See our ranking below!

How Do You Buy The Best 400ex Rings?

Do you get stressed out thinking about shopping for a great 400ex rings? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 400ex rings, which is why we have assembled a comprehensive list of the greatest 400ex rings available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 400ex rings that you consider buying. Your questions might include the following:

  • Is it worth buying an 400ex rings?
  • What benefits are there with buying an 400ex rings?
  • What factors deserve consideration when shopping for an effective 400ex rings?
  • Why is it crucial to invest in any 400ex rings, much less the best one?
  • Which 400ex rings are good in the current market?
  • Where can you find information like this about 400ex rings?

We’re convinced that you likely have far more questions than just these regarding 400ex rings, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 400ex rings, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 400ex rings. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 400ex rings buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 400ex rings currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 400ex rings has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 400ex rings?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 400ex rings.
  5. Customer Ratings: Number ratings grade 400ex rings objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 400ex rings.
  7. Product Quality: You don’t always get what you pay for with an 400ex rings, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 400ex rings is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 400ex rings information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 400ex rings is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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