🛠️ Raptor / Warrior 350 Stock Bore Cylinder Complete Engine Rebuild Kit

A full rebuild kit for the Yamaha 350 engine—everything you need to get back on the trail or track with confidence. This bolt-on kit includes high-quality internals from trusted brands and fits all Yamaha Raptor and Warrior 350 models and years.

✅ What’s Included:

• New 83mm aftermarket stock bore cylinder

• Wiseco or JE forged piston**

• Nitrite-coated high-temp piston rings

• Chrome wrist pin & circlips

• Hotrods or Wiseco heavy-duty crankshaft with rod**

• Complete engine gasket kit

• MLS (Multi-Layer Steel) head gasket

• Complete seal kit

• Crank bearings (one pre-installed on crank)

• Counterbalancer bearings

• Transmission bearings

• Shift cam bearing

• Clutch roller bearing

• Head stud kit

• HD timing chain

• Stickers

Piston uses pump or race gas. Bolt-on with no machining required.

📦 Fitment:

Fits all years and models of:

• Yamaha Raptor 350

• Yamaha Warrior 350

🛡️ Warranty Info:

All parts are brand new in original packaging and backed by their original manufacturer’s warranty.
We strongly recommend installation by a professional engine builder. Warranty does not cover failures due to improper assembly, break-in, or tuning.