🔧 Hot Rods Stroker Crankshaft (421-4180) – Yamaha Grizzly 660 & Rhino 660 (2002–2008)

🛠️ Take your Grizzly or Rhino 660 to the next level with this drop-in Hot Rods Stroker Crankshaft. Designed for riders who want more torque and horsepower without complicated engine mods, this stroker crank gives you the boost you need while using your stock piston in most cases.

✅ What’s Included

• Complete stroker crankshaft assembly (Hot Rods 421-4180)

• Hot Rods connecting rods

• Top end bearings

• Crankshaft webs (factory assembled and trued)

📦 Fitment
Fits the following Yamaha models:

• 2008 YFM660FG Grizzly 4WD [IRS]

• 2007 YFM660FG Grizzly 4WD [IRS]

• 2007 YXR660F Rhino 660

• 2006 YFM660FG Grizzly 4WD [IRS]

• 2006 YXR660F Rhino 660

• 2005 YFM660FG Grizzly 4WD [IRS]

• 2005 YXR660F Rhino 660

• 2004 YFM660FG Grizzly 4WD [IRS]

• 2004 YXR660F Rhino 660

• 2003 YFM660FG Grizzly 4WD [IRS]

• 2002 YFM660FG Grizzly 4WD [IRS]

🛡️ Warranty Info
Hot Rods crankshafts are backed by manufacturer warranty against defects in materials and workmanship. Installation by a professional is recommended to ensure longevity and performance.

🔑 Key Features

• CNC machined and dynamically balanced

• +4mm stroke for increased displacement & torque

• Uses stock piston in most applications

• No case mods needed

• Compatible with Cylinder Works Big Bore kits

• Rebuildable with genuine Hot Rods rods and bearings

• DIN Class 9+ gear quality