TRX400EX / TRX400X 87mm Big Bore Rebuild Kit | WR101-198 (2005-2014)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
🛠️ 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:
-
Complete Crankshaft Assembly
-
+2.00mm Oversize (87mm) Piston Kit
-
Complete Engine Gasket Kit w/ Oil Seals
-
Main Bearing and Seal Kit
-
Water Pump Rebuild Kit
-
Transmission Bearing Kit
-
Countershaft Bushing and Seal Kit
-
Cam Chain
📦 Fitment:
-
2005–2008 Honda TRX400EX
-
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 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.
