HOTRODS CRANKSHAFT ASSY +4mm YAM YFM350 WARRIOR 87-04, Use Vertex Piston 23616A

The Hot Rods Heavy-Duty (+4mm Stroke) Crankshaft Assembly 4143 is a performance-oriented replacement for Yamaha YFM350R Raptor and YFM350X Warrior models. With a +4mm stroke, it increases displacement to 379cc, providing enhanced power and torque. This crankshaft is factory-assembled, trued, and ready for installation, ensuring precision and reliability. It requires the use of the Vertex Stroker piston (23616A) for proper compatibility.

Features:

• Heavy-duty crankshaft assembly with a +4mm stroke for increased displacement (379cc).
• Factory-assembled and trued to within .001 inches for accuracy and balance.
• Includes Hot Rods connecting rod, MAG (LH) crank bearing, and inner crankshaft webs.
• Completely rebuildable for extended service life.
• Ready for installation, delivering hours of dependable performance.
• Requires Vertex Stroker piston (23616A) for compatibility.

Compatible Models:

Yamaha YFM350R Raptor (2004–2013):

• 2004 Yamaha YFM350 Raptor
• 2005–2013 Yamaha YFM350R Raptor
• 2005–2007 Yamaha YFM350RSE Raptor Special Edition
• 2007 Yamaha YFM350RSE2 Raptor Special Edition 2

Yamaha YFM350X Warrior (1987–2004):

• 1987–2004 Yamaha YFM350X Warrior

Part Number: 56-208.HR.4mm

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.