TRX400EX / TRX400X 87mm Big Bore Rebuild Kit | WR101-198
🛠️ Honda TRX400EX / TRX400X 87mm Big Bore Engine Rebuild Kit (Wrench Rabbit WR101-198)
Upgrade your 400EX or TRX400X to a true big bore with this complete Wrench Rabbit engine rebuild kit featuring an 87mm (+2.00mm) piston. More power, more torque, and a fresh bottom end—all in one box.
✅ What’s Included:
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Complete Crankshaft Assembly
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+2.00mm Oversize (87mm) Piston Kit
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Complete Engine Gasket Kit w/ Oil Seals
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Main Bearing and Seal Kit
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Water Pump Rebuild Kit
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Transmission Bearing Kit
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Countershaft Bushing and Seal Kit
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Cam Chain
📦 Fitment:
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2005–2008 Honda TRX400EX
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2009, 2012–2014 Honda TRX400X
Compatible with all 4-stroke 400cc Honda Sport ATV models listed above. This is a big bore kit (87mm) for increased displacement.
🛡️ Warranty Info:
Wrench Rabbit kits are built by Vertex and include only high-quality internal components that meet or exceed OEM specs. Professional installation and proper break-in recommended.
Price & SKU
💲 Retail Price: $803.95
SKU: 0903-1449 / WR101-198
Estimated Shipping Weight: 17.55 lbs
Handling: Ships next business day
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
