TRX400X TRX400EX Wiseco Complete Rebuilt Motor Engine Rebuild Top Bottom End Kit
FITS ALL '05+ 400EX AND 400X ALL YEARS ALL MODELS
- NEW stock bore after market cylinder
- CP JE Wiseco or Wossner forged piston*
- Hi temp piston rings
- Wristpin
- Circlips
- Hotrods or Wiseco crankshaft with rod*
- Crank bearings
- Transmission bearings
- Head stud kit
- Complete gasket kit - head base intake exhaust case covers pump covers o-rings
- Complete crankcase oil seal kit
- Cam chain
- Clutch kit
4606M08500, M2002 4628M08500 M2003 8604DA WPC131A CBK0016 4040 K014 808894 822139 13000-KCY-672 12100-KCY-670 13101-KCY-670 12100-HN1-A70, 12191-KCY-672,13011-KCY-670, 13101-KCY-670, 13111-KCY-670, 90601-KA5-000,98061-59616, 12251-HN1-003,12391-KCY-671, 12100-KCY-670
Complete Your Build
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Professional Installation Required
Professional installation by a qualified technician is recommended for best results.
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Notice Regarding Photos: Product photos used in our listings are for example only to show item quality, components, and visual reference. You will receive the correct quantity, size, and fitment for the specific kit listed. Exact brands, finishes, packaging, or small components may vary when equivalent-quality parts are used. Please read the full product description for exact details before purchasing.
Bearing Notice: In some cases, you may receive sealed bearings. If your application requires an open bearing, the seals can be removed when appropriate for the application.
Emissions & Race Use Only: Some products may be exempt from emission standards and requirements under 40 C.F.R. § 1051.620 and/or applicable California law. Certain parts are sold only for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing. Installation may void the vehicle manufacturer's warranty and/or may be illegal in some locations. Buyer is responsible for confirming legal use in their application and location.
Warranty & Liability: Due to the nature of high-performance and racing applications, components may be sold without express or implied warranty of merchantability or fitness for a specific purpose except where specifically stated. BPRATV LLC shall not be liable for special, incidental, or consequential damages including loss of property, equipment, profits, or revenue resulting from sale, installation, or use of these parts. High-performance parts are not DIY items; work should be performed by a qualified, experienced mechanic.
Returns: Returns are accepted within 30 days for eligible items that are 100% complete, brand new, unused, uninstalled, and in original packaging. Items that have been installed, prepped, lubricated, sealed, modified, or used are not eligible. For warranty consideration, parts must be sent back for physical inspection. We do not warranty based on photos, emails, or third-party assessments.
Specialty Warranties: Certain specialty items, such as Cub cylinders or titanium fasteners, may have separate warranty terms. Any warranty does not cover improper tuning, installation, maintenance, or misuse.
Interchangeable Parts: Some kits may include interchangeable components or equivalent-quality substitutions to prevent backorder delays. Prices, included items, and listings are subject to change without notice.
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