Vertex Wrench Rabbit Engine Rebuild Kit – TRX400X/EX (2005–2014) +3.00mm
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Vertex Wrench Rabbit Complete Engine Rebuild Kit – Honda TRX400X / TRX400EX (2005–2014)
Description
🛠️ Rebuild your Honda TRX400X or TRX400EX engine with confidence using the Vertex / Wrench Rabbit Complete Engine Rebuild Kit (WR101-199). This comprehensive kit is built for riders who demand factory-level precision and durability with added power from a +3.00 mm oversize piston. 88mm
Each kit includes everything required to rebuild both the top and bottom end of your motor—featuring Hot Rods crank components, Vertex forged pistons, and Cometic gaskets for a complete professional-grade overhaul in one box.
What’s Included
✅ Hot Rods Crankshaft Assembly – trued and balanced for smooth operation
✅ Vertex +3.00 mm Oversize Piston Kit – piston, rings, wrist pin, and clips
✅ Complete Engine Gasket Kit – covers both top and bottom ends
✅ Oil Seal Kit – major seals and O-rings included
✅ Main Bearing & Seal Kit – OEM-spec crank bearings
✅ Water Pump Rebuild Kit – seals, bearings, and gaskets
✅ Transmission Bearing Kit – includes all gearbox bearings
✅ Countershaft Bushing & Seal Kit
✅ Cam Chain – heavy-duty replacement for long service life
Everything you need for a full, high-performance rebuild — no guesswork, no missing parts.
Fitment
📦 Fits the following models:
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Honda TRX400X (2009, 2012–2014)
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Honda TRX400EX Sportrax (2005–2008)
Key Features
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Complete top & bottom end rebuild kit
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Includes +3.00 mm oversize Vertex piston for increased displacement and torque
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Premium OEM-quality components from Vertex and Hot Rods
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100% bolt-on installation; no machine work required
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Ideal for full rebuilds, engine refreshes, or performance upgrades
Displacement: 400 cc
Engine Type: 4-Stroke
Weight: 17.55 lb
Warranty Info
🛡️ Vertex / Wrench Rabbit Limited Manufacturer Warranty
All components meet or exceed OEM quality. Professional installation is recommended.
Price & SKU
💲 Retail Price: $725.95
SKU: 0903-1450 / WR101-199
Estimated Shipping Weight: 17.55 lb
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.
