O.S. Engines

Main Shaft: 3805-1200

Piston Ring: 70SZ-H

Cylinder Head: GT15

Crankcase: 46AXII

Front Bearing: 90-300

Rear Bearing: 108-160

Valve Collet: FS-91 Surpass

Carburetor 40K: 46AXII

Propeller Shaft Set: 3805 3810

Front Bearing: 21-61

Connecting Rod: GF30

Piston Pin: FS-91 Surpass

Gasket Carburetor: 40-61, FT-300

Woodruff Key: 61-91

PCV Valve Set: GF40

Cylinder Liner: GT55

Crankcase: FS72 Alpha

Screw Set (12): FS-26 Surpass

Cam Cover: 56 FS

Piston: 105HZ

Piston Pin Retainer: 50SX-H

Needle Metering 21M: 21XZ-R VII

O.S. Crankcase OS Speed R21GT

Cam Assembly Screw Set: SIrius 7