Vertex Complete Engine Rebuild Kit WR101-211 (Includes +0.5mm Piston) — Yamaha Grizzly/Rhino 660

Vertex Complete Engine Rebuild Kit WR101-211 — Yamaha Grizzly & Rhino 660 (Includes +0.5mm Piston)

Product Description

When your Yamaha 660 engine requires an overbore, the Vertex Complete Engine Rebuild Kit (WR101-211) is the ultimate professional solution. This master kit features all the components found in our standard rebuild set, with the addition of a +0.5mm overbore piston kit, making it the perfect choice for refreshing a worn cylinder that requires boring and honing to return to factory-fresh tolerances.

Every component is manufactured to meet or exceed OEM specifications, providing the reliability you need for high-demand utility or trail riding. By choosing this comprehensive bundle, you save time and ensure that all your internal engine components are perfectly matched for a professional, durable overhaul.

What’s Inside the Box?

• +0.5mm Overbore Piston Kit: Oversized piston, rings, pin, and clips for refreshed cylinder performance.
• Crankshaft: Heavy-duty replacement engineered for smooth, reliable bottom-end power.
• Gaskets & Seals: A complete engine gasket set featuring all necessary high-quality oil seals.
• Bearing Kits: Contains all essential main bearings and seals, transmission bearings, counter balancer bearings, and a water pump rebuild kit.
• Additional Components: Cam chain and countershaft bushing/seal kit included where applicable to ensure a full system refresh.

Fitment List

Year Range	Vehicle Model Series
2004-2007	Yamaha YXR66F Rhino 660
2002-2008	Yamaha YFM660F Grizzly 4x4

Important Note on Installation:

Because this kit includes a +0.5mm piston, your cylinder must be professionally bored and honed to the correct specification before installation. We highly recommend having a machine shop perform this work to ensure proper piston-to-wall clearance, which is critical for engine longevity.

Recommended Pairings

• Essential Off-Road Mechanics Tools
• High-Performance Engine Oils & Coolants

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