Brian Crower Crankshaft - 2016+ Yamaha YXZ/Textron XX 66.2mm Stroke 4340 Billet

What you get with this Brian Crower crankshaft is a solid billet piece ready to handle serious power. This crankshaft is specifically made for 2016 and newer Yamaha YXZ and Textron XX models, featuring a 66.2mm stroke. It’s built from 4340 billet steel, a material known for its exceptional strength and durability, making it a smart choice when you’re pushing your engine beyond stock limits.

Brian Crower is well-known for making strong engine components, and this crankshaft is no exception. The 4340 billet construction means it’s forged from a single piece of steel, which significantly increases its resistance to fatigue and fracture compared to cast cranks. This is crucial for high-performance applications where cylinder pressures and rotational forces are much higher than stock. The 66.2mm stroke is an increase over the factory stroke, which will change the engine’s displacement and can help improve torque and overall power output when paired with other modifications.

When you’re rebuilding or upgrading the heart of your Yamaha YXZ or Textron XX, a robust crankshaft like this Brian Crower unit is a foundational piece. It’s designed to be a direct replacement for the stock crankshaft, meaning it should fit into your existing engine block with the proper machine work and assembly procedures. Because this is a performance-oriented part, it’s always a good idea to consult with a professional engine builder or refer to Brian Crower’s specific installation guidelines to ensure everything is torqued correctly and balanced for optimal performance and longevity.