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Over 185,000 Parts and accessories in stock

Free Same-Day Shipping on orders over $89 Tech Support Backed by Years of Riding Experience

2018 Yamaha YZ250 Engine Cylinders & Heads

2018 Yamaha

YZ250

Drive Type: Chain
Type - Drive Chain: Drive Chain - O-Ring
Front Tire Size: 80/100-21
Rear Tire Size: 110/90-19
Spark Plug: BR8EG
Chain Size: 520
Chain Links: 114
Front Sprocket/Pulley Teeth: 14
Rear Sprocket/Pulley Teeth: 50

For reference only, please consult your owner’s manual to confirm your sizes

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Cylinder Works Cylinder Head Kit for 1999-2027 Yamaha YZ Dirt Bikes
$249.80

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Part #: 1400261 Mfg Part #: CH2001-K01

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Cylinder Works 66.4mm Cylinder for 1999-2027 Yamaha YZ Dirt Bikes
$613.65

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Part #: 1404876 Mfg Part #: 20009

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Moose Offroad Cylinder for 1999-2027 Yamaha YZ Dirt Bikes
$597.95

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Part #: 1404539 Mfg Part #: MSE20009

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