Yamaha Genuine YP250 Majesty 250 Cylinder 4HC-11311-00

Product Description

Brand new official Yamaha factory engine cylinder designed for classic 250cc four-stroke liquid-cooled maxi-scooters. Precision-machined to exact factory metallurgical and dimensional tolerances with precise bore cross-hatch finish and coolant passage configuration, engineered to restore optimal compression, thermal efficiency, and reliable long-term power delivery during a top-end engine rebuild.

Vehicle Compatibility

Engineered explicitly for Yamaha 250cc four-stroke liquid-cooled maxi-scooter platforms.

Verified catalog fitment layout:

Fitment & Technical Details

Inspect the cylinder bore, upper/lower deck faces, and cooling jacket ports for absolute cleanliness prior to installation. Ensure the crankcase mating surface is thoroughly cleared of old gasket material. Guide the cylinder carefully over the piston and ring assembly, making sure the piston ring end gaps are aligned with their locating pins, then seat it smoothly down onto the crankcase studs without applying side loads.Verification: Slides squarely down onto the crankcase block with zero binding, providing an absolute seal for high-pressure combustion and continuous coolant circulation.

Important: Please ensure the part number matches your motorbike before purchasing. If you have any questions about the part or its compatibility, feel free to contact us. We’re here to help!

At Dmmotorcycles, we’ve specialized in vintage and vintage sports motorcycles and parts directly from Japan since 1998. We stock a wide selection of rare genuine and high-quality aftermarket parts and continually update our inventory to meet growing demand.

Looking for a specific part? Don’t hesitate to ask! We may have it in stock even if it’s not listed online. If not, we’ll do our best to source it for you.

We’re also happy to provide guidance on installation and offer excellent after-sales support to ensure your satisfaction.

Shipping Information

We ship worldwide, carefully inspecting and securely packing all parts to ensure safe delivery. Your order will be insured and shipped quickly, with the best available shipping option chosen for speed and reliability.

Please note:

• All parts are shipped from Cyprus (Europe).
• Customers outside the EU may incur additional import taxes based on the value of the item.