Wiseco Garage Buddy Complete 4-Stroke Engine Rebuild Kit – Honda TRX400EX / TRX400X (2005, 2009, 2012-2014) – 86.00mm Bore (+1.00mm)

Wiseco Garage Buddy Complete 4-Stroke Engine Rebuild Kit – Honda TRX400EX / TRX400X

The Wiseco Garage Buddy kit is the ultimate complete engine rebuild solution featuring premium forged pistons and everything you need in one box. This professional-grade kit includes top and bottom end components, plus a Wiseco hour meter to track your next rebuild interval!

Important: Oversize Piston

This kit includes a +1.00mm oversize piston (86.00mm bore). Your cylinder must be bored to 86.00mm to use this kit. If you need a standard bore kit, please verify the correct part number for your application.

Kit Includes

• Crankshaft Assembly – Designed and inspected to assure durability
• Wiseco Forged Piston Kit (#4606M08600) – Premium 2618 aluminum alloy, +1.00mm oversize
• Top End Gasket Set (#W5514)
• Bottom End Gasket Set (#WB1172)
• Main Bearing (#B5047)
• Cam Chain (#CC004)
• Wiseco Hour Meter with Mount (#W8063/W8062) – Track your engine hours!
• Maxima Assembly Lube – Premium assembly lubricant included

Key Features

• Premium forged piston kit with stock compression ratio
• High-quality cam chain included
• Top and bottom end components for a complete engine rebuild
• Crankshaft and rod assembly designed and inspected for durability
• Main bearings, seals, and gaskets included
• Wiseco hour meter and bracket included – know when your next rebuild is due!
• Maxima assembly lube for proper break-in

Piston Specifications

• Bore Size: 86.00 mm (+1.00mm Oversize)
• Piston Diameter: 85.95 mm
• Compression Ratio: 10.1:1
• Material: 2618 Aluminum Alloy
• Skirt Coating: Non-Coated
• Style: Forged Series Piston

Engine Specifications

• Displacement: 400cc
• Engine Type: 4-Stroke
• Weight: 16.4 lbs

Fitment

Honda TRX400X:

• TRX400X: 2009, 2012-2014

Honda TRX400EX Sportrax:

• TRX400EX Sportrax: 2005

Why Wiseco Garage Buddy?

Wiseco is the gold standard in forged pistons. The Garage Buddy kit combines their legendary piston quality with all the components needed for a complete rebuild. The included hour meter is a game-changer – you’ll always know exactly when your next service is due. No more guessing!

About Wiseco Forged Pistons

Wiseco’s forged 2618 aluminum alloy pistons are designed for high-performance applications. Forged pistons are stronger and more durable than cast pistons, making them ideal for racing and aggressive riding.