Wossner 4-Stroke Crankshaft Assembly CS4072 - Yamaha YZ250F 2014-2018

Product Description

The Wossner 4-Stroke Crankshaft Assembly is engineered to restore bottom-end performance and engine reliability for high-revving 250cc 4-stroke race bikes. Built as a precision standard replacement, this heavy-duty crankshaft and connecting rod assembly ensures smooth rotational balance and maximum durability under aggressive riding and racing conditions.

Each unit comes fully assembled with the connecting rod and includes a top-end wrist pin bushing for a straightforward installation. Designed to meet strict engineering standards, this assembly provides confidence when rebuilding your engine's bottom end.

Top Features: Wossner Crankshaft Assembly

• Includes complete crankshaft and connecting rod assembly ready for installation.
• Includes top-end wrist pin bushing for a complete bottom-end overhaul.
• Standard replacement crankshaft assembly manufactured to precise performance tolerances.
• Specifically engineered for 4-stroke off-road competition engines.

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: Does this crankshaft assembly come with a top-end bushing?
A: Yes, the assembly includes both the connecting rod and the top-end wrist pin bushing.

Q: Is this a standard OEM replacement crankshaft?
A: Yes, it is a standard replacement crankshaft assembly built to match factory specifications.

Expert Pro-Tip: When installing a new 4-stroke crankshaft, always flush your engine oil lines and replace your oil filter to remove any lingering debris from a previous engine failure. Additionally, replace your main crank bearings and crank seals at the same time for maximum reliability.

Recommended Pairings:

• Yamaha YZ250F Performance Parts & Upgrades
• Piston / Top-End Kits Performance Parts
• Engine Rebuild Kits Performance Parts

About Moto-House MX

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 machines. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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