WISECO - PWR131A-860 - Engine Rebuild Kit - 86.00 mm - Honda TRX400EX
A complete engine rebuild requires every component to work together — and sourcing gaskets, seals, bearings, and internal parts individually from different suppliers is a recipe for compatibility surprises on the bench. The WISECO PWR131A-860 gives you a comprehensive rebuild solution for 86.00 mm / Honda TRX400EX engines with matched components engineered to work together from day one. Kit includes a premium forged piston kit with stock compression ratio and a high-quality cam chain. Top and bottom end components are included for a complete engine rebuild. Bore - Oversize: +1.00 mm. Build it right with the PWR131A-860 and put the engine back in service with confidence.
Features
- Kit includes a premium forged piston kit with stock compression ratio and a high-quality cam chain
- Top and bottom end components are included for a complete engine rebuild
- Crankshaft and rod assembly designed and inspected to assure durability
- Main bearings, seals, gaskets, a Wiseco hour meter and bracket are also included in the kit
Specifications
- Bore - Oversize: +1.00 mm
- Piston Diameter: 85.95 mm
- Skirt Coating: Non-Coated
- Engine Type: 4-Stroke
- Bore Size: 86.00 mm
- Displacement: 400 cc
- Riding Style: ATV
- Style: Forged Series Piston
- Product Name: Rebuild Kit
- Type: Engine
- Bore - Oversize: +1,00 mm
- Model: Garage Buddy
- Units: Kit
- Compression Ratio: 10.0:1
- Piston Material: 2618 Aluminum Alloy
Frequently Asked Questions - WISECO - PWR131A-860 - Engine Rebuild Kit - 86.00 mm - Honda TRX400EX
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
