Cylinder Works Standard Bore Cylinder 20001 — Yamaha YFZ450 / WR450F / YZ450F 2003-2013

Product Description

Restore your machine's peak power with the Cylinder Works Standard Bore Cylinder. Engineered as a high-quality, ready-to-install replacement, this cylinder is the ideal solution for riders looking to restore their engine to factory performance without the downtime of machine shop labor or re-plating services.

Precision-manufactured in the U.S.A., this cylinder features a durable nickel silicon carbide (NSC) plating, providing excellent heat dissipation and reduced friction for an extended service life. It is designed to look and perform virtually identical to the original OEM cylinder, ensuring a seamless, direct bolt-on fitment for your Yamaha 450 engine.

Top Features: Cylinder Works Standard Bore Cylinder

• Direct bolt-on, ready-to-install design requires no modifications or re-plating
• Features a high-performance Nickel Silicon Carbide (NSC) cylinder bore coating
• Durable cast aluminum construction ensures OEM-level structural integrity
• Standard 95.00 mm bore size specifically engineered for the 450cc 4-cycle engine

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 cylinder come with a piston?
A: No, this is for the cylinder body only. We always suggest pairing this with a fresh piston kit and top-end gaskets for your engine rebuild.

Q: Is this for the YFZ450 or the YZ450F?
A: This part is compatible with both! It fits the YFZ450 ATV as well as the WR450F and YZ450F dirt bikes from the listed years.

Expert Pro-Tip: Since these 450 engines have tight tolerances, ensure you clean the cylinder surface of all old gasket material perfectly before installation. Even a small amount of leftover paper gasket can cause a vacuum or coolant leak. Also, verify your water pump seals while you have the system drained; it is a common maintenance item that is easily reached during a top-end overhaul.

Recommended Pairings:
o Yamaha 4-Stroke Performance Parts
o Premium Motorcycle Chemicals
o All Quads & ATV Performance Parts

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.

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