O.S. Engines

Crankcase: O.S. Max .12 TG Version 4

Cylinder Head Gasket: 35AX

Needle Assembly: FT-120-300

O-Ring Metal Valve: 120Surpass

Pushrod Cover Assembly: 120Surpass

Drive Shaft Bearing: Sirius 7

Spark Plug 1 4-32 RCE: GF30

Valve Exhaust: FS-120 Surpass

Inner Head: O.S.SPEED R21GT2

O.S. Pistion Pin: .12XZ

Screw Set (10): 46AX 55AX

Carburetor Body: 21M

O.S. Cylinder Piston Rod Set Speed: T1203

Piston: FS-120

Piston: 37SZ-H

Connecting Rod: Speed B2101, B2102

Silencer F-5030: FS81 Alpha

Assembly Screw: 55AX

Crankshaft: GF30

Cylinder Liner: GF30

Carburetor Body: 61ER

Drive Shaft Fixing Screw: Sirius 7

Prop Nut 10453 10-12

Screw Set 12 (8)