Yamaha Raptor 660 (2001-2005) +1.00 mm Engine Rebuild Kit – 101mm 667cc
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Yamaha Raptor 660 (2001 – 2005) Complete Engine Rebuild Kit – Vertex / Wrench Rabbit (+1.00 mm Overbore)
Description
🛠️ Rebuild your Yamaha Raptor 660 to factory-fresh condition with the Vertex / Wrench Rabbit WR101-214 Complete Engine Rebuild Kit.
This +1.00 mm overbore setup boosts displacement to ~667 cc, restoring compression and improving throttle response without needing machine work beyond a simple cylinder hone.
Includes a new Hot Rods crankshaft, oversize Vertex piston kit, and all bearings, seals, and gaskets for a complete top-and-bottom-end refresh.
What’s Included
✅ Hot Rods Crankshaft Assembly (trued & balanced)
✅ Vertex +1.00 mm Oversize Piston Kit (piston, rings, 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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💪 Full OEM-Level Rebuild: All major engine components in one box
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⚙️ +1.00 mm Overbore: Increases displacement to ~667 cc for extra torque
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🧩 Vertex + Hot Rods Pairing: Precision fit and long-term durability
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🔧 Direct Fitment: No case mods required – fits stock cylinder after hone
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🏁 Trail-Proven Durability: Ideal for desert, trail, and dune riders
Fitment
📦 Fits the following Yamaha models and years:
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2001 – 2005 Yamaha YFM660R Raptor
Warranty Info
🛡️ Covered by Wrench Rabbit / Hot Rods Limited Warranty
Professional installation recommended
Price & SKU
💲 Retail Price: $1,218.95
SKU: 0903-1465 / WR101-214
Estimated Shipping Weight: 22.85 lbs
Handling: Ships next business day
Closeout Item: No returns
📦 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.
