Vertex WR101-115 Complete Engine Rebuild Kit - 2004 Kawasaki KX250

Product Description

When it's time to restore the hard-hitting power of your legendary 2-stroke, a piecemeal repair just won't cut it. The Vertex Complete Engine Rebuild Kit delivers a comprehensive, premium-tier solution to fully revitalize your machine's power plant from the deep bottom-end up to the top-end. Moto-House MX provides this all-in-one, high-performance package to ensure absolute mechanical reliability, optimal crankcase compression, and factory-fresh performance during rigorous track or trail riding.

Manufactured to strict precision tolerances, this complete rebuild setup eliminates the guesswork of sourcing individual components. Featuring a heavy-duty crankshaft assembly and a world-class Vertex standard compression piston kit, every component is engineered to handle high-RPM stress. Secure this ultimate engine overhaul package today and rebuild with total confidence!

Top Features: VERTEX Complete 2-Stroke Engine Rebuild Kit

• All-In-One Solution: Includes everything required for a total top and bottom overhaul—crankshaft, piston kit, all critical bearings, and complete sealing infrastructure.
• Premium Vertex Piston: Standard compression piston kit engineered for maximum durability, heat dissipation, and crisp throttle response.
• Heavy-Duty Crankshaft Assembly: Precision-balanced crankshaft built to meet or exceed OEM specifications for reduced vibration and prolonged bearing life.
• Comprehensive Bearing & Seal Sets: Includes transmission bearings, main bearings, water pump rebuild components, countershaft bushing/seal kit, and a complete engine gasket kit for a leak-free seal.

Don't risk a catastrophic engine failure on a tired bottom end—verify your fitment below and track-prep your machine today!

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2004	Kawasaki	KX 250 (2-Stroke)

Frequently Asked Questions

Q: Does this kit include the transmission bearings?
A: Yes, unlike basic rebuild kits, this Vertex complete package explicitly includes a full transmission bearing kit alongside the main crank bearings.

Q: Is the piston in this kit a standard bore and standard compression?
A: Yes, this kit features a standard compression piston setup designed to match stock factory specifications for reliable, predictable 2-stroke power.

Q: Does it come with the water pump seals?
A: Absolutely. It features both a complete oil seal kit and a dedicated water pump rebuild kit to completely refresh your engine's cooling and lubrication pathways.

Expert Pro-Tip: When splitting the cases for a full rebuild on a '04 KX250, never force the case halves apart with a screwdriver or pry bar, which can easily gouge the aluminum sealing surfaces. Always use a proper crankcase separator tool, and heat the bearing bosses slightly to ensure the new premium bearings drop smoothly into place without binding.

Recommended Pairings:

• Shop Kawasaki KX250 Engine Parts & Performance Upgrades
• Browse Premium 2-Stroke Premix & Trans Oils
• Browse All Vertex Engine Components

Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida.