This 6B4-15100-00-1S Crankcase Assy For Yamaha Outboard 6B3/6B4 D series 9.9D 15D Enduro Engine,  is used on these models and components. 

Gasket: 63V-41112x2,63V-11181, 6B4-11351

Spark Plug: EB7HS-10

Compatibility models:

·         9.9HP    15HP

Brand Name: OVERSEE

Manufacturer Part Number: 6B4-15100-00-1S

Other Part Number: 6B4-15100-00

Country/Region of Manufacture: China

Placement on Vehicle: Rear