Honda TRX400EX (1999–2004) Complete Engine Rebuild Kit +2.00mm 87mm
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Honda TRX400EX (1999–2004) Complete Engine Rebuild Kit – Vertex / Wrench Rabbit
Description
🛠️ Rebuild your Honda TRX400EX engine to better-than-stock performance with the Vertex / Wrench Rabbit Complete Engine Rebuild Kit (WR101-194).
This all-in-one rebuild solution includes a precision-balanced Hot Rods crankshaft, a +2.00 mm Vertex piston kit, and every bearing, seal, and gasket needed for a complete professional overhaul. Whether you’re restoring a trail quad or building a high-compression setup, this kit gives you OEM reliability and performance in one package.
What’s Included
✅ Hot Rods Crankshaft Assembly (trued & balanced)
✅ Vertex +2.00 mm Oversize Piston Kit (piston, rings, wrist pin, clips)
✅ Complete Engine Gasket Kit (top & bottom end)
✅ Oil Seal Kit
✅ Main Bearing & Seal Kit
✅ Transmission Bearing Kit
✅ Water Pump Rebuild Kit
✅ Countershaft Bushing & Seal Kit
✅ Cam Chain
Key Features
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💪 All-In-One Engine Solution: Complete kit for a full rebuild—no need to piece together parts separately
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🔧 Performance Upgrade: +2 mm piston increases displacement and compression for stronger torque and throttle response
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🏁 OEM-Level Quality: Vertex pistons and Hot Rods crankshaft built to factory or better tolerances
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🧰 Professional-Grade Reliability: Perfect for both stock rebuilds and mild performance builds
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⚙️ Direct Fitment: All components designed for easy installation with OEM specifications
Fitment
📦 Fits the following models:
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1999 Honda TRX400EX FourTrax
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2000–2004 Honda TRX400EX Sportrax
Direct OEM replacement for all internal engine components.
Warranty Info
🛡️ Covered under Wrench Rabbit / Hot Rods Limited Warranty.
All parts meet or exceed OEM quality standards. Professional installation recommended.
Price & SKU
💲 Retail Price: $803.95
SKU: 0903-1445 / WR101-194
Estimated Shipping Weight: 17.4 lbs
Handling: Ships next business day
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
