OS Engines

Piston: FS-91 Surpass FT-160

Muffler Extension: #762

Inner Head: O.S. Speed R2104

Cylinder Liner: F91, 160, 320

42mm Carbon Fiber Propeller: 21XM

Needle #20E

Carburetor Retainer: 12TZ Spec II

Carburetor Dust Covers: #12FB, 12XZ Speed

O.S. Cover Plate Speed: T1203

GT15 15cc Gas 2-Cycle Airplane Engine with Muffler

Metering Needle 12F2: 12XZ Speed Spec

Crankcase: 46AXII

Outer Head: O.S. Speed T1205

Drive Shaft Nut: 21XM

Inner Head O-Ring O.S. T1204 (S30-FKM)

O-Ring IV PRC #6H Rubber

O.S. Carburetor Complete 22E(B)GT w o Reducer

Speed Flywheel Puller

Screw Set (12): FS-40 Surpass

Built-Up Parts Set (C&P) O.S. Speed T1204

Carburetor 21J4 (B) B21 Adam Drake II without Reducer

Dust Cover: #2BK

Cylinder Head Gasket, .2mm: 91HZ

91HZ-R 3D Speed Helicopter Engine, Black