The Best 400ex big bore kit of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 400ex big bore kit of 2022. Check our ranking below.
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- 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, 12251-HN1-003,12100-KCY-670, 12100-KCY-670, 12191-KCY-672
- 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; Cylinder Material: Aluminum; Cylinder Sleeve Coating: None
- Compatible With: Honda 1999-2008 TRX400EX Sportrax 2009 TRX400X 2012-2014 TRX400X 1999-2004 XR400R
- Content: Cylinder (89mm), Piston, Piston Rings, 2* O-Rings (2), Wristpin and 2* Circlips, Gasket, Spark Plug
- Replace Part Number: 12100-HN1-A70, 12191-KCY-672,13011-KCY-670, 90601-KA5-000, 13101-KCY-670, 13111-KCY-670, 91301-428-003, 12251-HN1-003,12100-KCY-670, 12191-KCY-672
- Feature: We adopt the highest grade materials to make our product. It bring durable and reliable feature under extreme conditions.
- Warranty: For any reason, if you are not satisfied with your purchase, contact us directly. We offer a one-year warranty, 100% satisfaction guarantee.
- Increased Performance at all RPM's, Faster Throttle Response, & Stops Lean Exhaust Popping that Damages Engines.
- The kit comes with complete instructions for installation. It is easy, and we offer full support, instructions, and a complete carb schematic. Only basic hand tools are required.
- Kit Includes: Main Jets, Needle Adjusters, Nylon Spacers, Drill Bits, Slide Hole mod (with CV carb), Idle Mixture mod, Slide Spring Mod (with CV carb), Carb Schematic, Specifications, Carb Sync Tool build, Carb Cleaning Procedure, Proper Tuning Techniques, and step by step instructions with photos.
- We give a 100% Satisfaction Guarantee. Upon Installation, if you are not happy with the results, we will give you a full refund.
- Fits: Honda XR400 440 Overbore 1996-04, XR400 (87-88mm bore) 1996-05, TRX400EX (87-88mm bore) 1999-08, TRX400X (87-88mm bore) 2009-12
- Fits: Honda Sportrax TRX400 EX (1999-2008)
- STD Bore 85mm / Displacement 397cc
- This product is tested to Exceed Original Equipment Standards and Performance
- This product includes Piston Kit, Gasket Kit, OE Type Cylinder
- THIS ITEM HAS TO BE INSTALLED BY PROFESSIONAL MECHANICS SPECIALIZED IN ATV AND UTVs
- Replaces OEM part numbers 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
- for 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! equal to or better than OEM
- 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. 1x chain tensioner gasket. 1x gasket maker. 1x thread lock. 1x fuel filter. 1x oil filter. 1x free NGK spark plug
- for 1999 - 2008 Honda TRX 400ex.
![50 Caliber Racing 440cc 89mm Big Bore Kit - Fits 1996-2016 Honda XR400R, TRX400X, TRX400EX Models [4449A13]](https://m.media-amazon.com/images/I/41fD4D7LwRL._SL160_.jpg)
- 50 Caliber Racing Big Bore Top End Kit
- Fits Honda XR400R & TRX400ex from 1996 - 2016
- 10:1 Piston with Anodized Dome - 89mm Cylinder - 440cc
- Cylinder - Piston - Rings - Clips - Wrist Pin - Gasket Set - Spark Plug
- Fitment: Top End Kit Fit for Compatible with Honda Trx400ex TRX 400EX 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008.
- Replacement 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 Included: 1 set complete cylinder piston rebulid kit.
- Condition: Brand New.
- Replacement for Honda Sportrax 400 TRX400EX
- Rebuild it right the first time with this quality kit and get your old atv screaming again
- Easy to install, manual is not included
- Exact items you will receive are pictured
- If you have any problems with the products you received, please contact us in time
- Fit for Models:
- Part fit for 96-08 honda trx400ex big bore up to 89mm
- Good quality, good operation.
- Comes in a sealed package, ready to install.
Last update on 2023-06-14 / Affiliate links / Images from Amazon Product Advertising API
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