Hot Rods Crankshaft Assembly 4419 — Kawasaki KX85 / KX100 2014-2025

Product Description

The Hot Rods Crankshaft Assembly (4419) is the industry standard for riders who demand reliability and performance without the hassle of a manual build. This crankshaft is sold as a complete assembly, including the proven Hot Rods connecting rod and top-end bearings, ensuring that you have everything you need for a professional-grade installation right out of the box.

Each assembly is factory-trued to precise OEM specifications, with gears manufactured to DIN class 9 or higher for maximum precision and durability. Constructed from high-strength 4140 steel, these crankshafts are built to meet or exceed OEM performance. Because they are fully rebuildable using genuine Hot Rods components, this crankshaft is an investment in your bike’s long-term performance.

Top Features: Hot Rods Crankshaft Assembly

• Factory Ready: Fully assembled and trued to OEM specs; ready for immediate installation.
• Premium Materials: Precision-forged from high-strength 4140 steel for superior fatigue resistance.
• High-Precision Gears: Gear sets meet or exceed DIN class 9 quality standards for smooth power transfer.
• Fully Rebuildable: Designed to be serviced with genuine Hot Rods connecting rods and bearings when the time comes.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Is this crankshaft ready to install without further truing?
A: Yes. Hot Rods crankshaft assemblies are factory-trued to exceed OEM specifications, meaning they are ready for immediate installation into your engine cases.

Q: Can I rebuild this crankshaft in the future?
A: Absolutely. One of the main advantages of a Hot Rods assembly is that it is fully rebuildable using genuine Hot Rods replacement connecting rods and bearing kits, saving you money on future maintenance.

Expert Pro-Tip: When installing a new crankshaft, never force it into the cases. Use a crankshaft installation tool to pull the crank into the main bearings. If you try to hammer it in, you risk misaligning the webs, which will cause excessive vibration and premature bearing failure.

Recommended Pairings:
o Kawasaki KX85 Performance Parts
o Kawasaki KX100 Performance Parts
o High-Temp Assembly Lube

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

Moto-House MX – Choice of Champions – Clermont / Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.