O.S. Engines

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Quality and performance has made O.S. the standard in RC engines for over 80 years.
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189-212 of 1,605 Results
Gasket Set: 46AX Gasket Set: 46AX
3.1 out of 5 Customer Rating
Gasket Set: 46AX
$11.80
Cover Plate Gasket: 35AX Cover Plate Gasket: 35AX
3.7 out of 5 Customer Rating
Cover Plate Gasket: 35AX
$10.94
Gasket Carburetor: 120-240 Gasket Carburetor: 120-240
5 out of 5 Customer Rating
Gasket Carburetor: 120-240
$6.49
Piston Pin Retainer: 40PS Piston Pin Retainer: 40PS
5 out of 5 Customer Rating
Piston Pin Retainer: 40PS
$6.49
Piston Pin: FS-120 Piston Pin: FS-120
3.9 out of 5 Customer Rating
Piston Pin: FS-120
$14.73
Piston Pin: 55HZ Hyper Piston Pin: 55HZ Hyper
4.7 out of 5 Customer Rating
Piston Pin: 55HZ Hyper
$10.94
Prop Nut: 61-120 Prop Nut: 61-120
3.9 out of 5 Customer Rating
Prop Nut: 61-120
$6.49
Pushrod: FS-62V Pushrod: FS-62V
5 out of 5 Customer Rating
Pushrod: FS-62V
$11.99
Needle Assembly Screw: 65LA Needle Assembly Screw: 65LA
5 out of 5 Customer Rating
Needle Assembly Screw: 65LA
$1.95 Price reduced from $6.49 to
Clearance Sale! ⓘ
Cover Plate: 15CV-A Cover Plate: 15CV-A
5 out of 5 Customer Rating
Cover Plate: 15CV-A
$10.99
Crankcase: 35AX Crankcase: 35AX
3.3 out of 5 Customer Rating
Crankcase: 35AX
$48.51
Cylinder Head: GF40 Cylinder Head: GF40
3.7 out of 5 Customer Rating
Cylinder Head: GF40
$48.90 Price reduced from $163.01 to
Clearance Sale! ⓘ
Cylinder Head: GGT15 Cylinder Head: GGT15
4.1 out of 5 Customer Rating
Cylinder Head: GGT15
$52.69
Front Plate: Sirius 7 Front Plate: Sirius 7
5 out of 5 Customer Rating
Front Plate: Sirius 7
$140.04 Price reduced from $346.53 to
Clearance Sale! ⓘ
Cylinder Head Gasket, .2mm: 91HZ Cylinder Head Gasket, .2mm: 91HZ
3.7 out of 5 Customer Rating
Cylinder Head Gasket, .2mm: 91HZ
$7.46
Mixture Control Valve 80T: Sirius 7 Mixture Control Valve 80T: Sirius 7
3.3 out of 5 Customer Rating
Mixture Control Valve 80T: Sirius 7
$6.33 Price reduced from $21.12 to
Clearance Sale! ⓘ
Muffler Screws L (2): 120AX Muffler Screws L (2): 120AX
3.9 out of 5 Customer Rating
Muffler Screws L (2): 120AX
$6.49
O-Ring Small: 120Surpass O-Ring Small: 120Surpass
3.9 out of 5 Customer Rating
O-Ring Small: 120Surpass
$6.49
Pushrod Cover: FT-120-240 Pushrod Cover: FT-120-240
3.7 out of 5 Customer Rating
Pushrod Cover: FT-120-240
$4.58 Price reduced from $9.44 to
Clearance Sale! ⓘ
Piston Pin Retainer P: 40-46 Piston Pin Retainer P: 40-46
3.9 out of 5 Customer Rating
Piston Pin Retainer P: 40-46
$6.49
Piston Pin: FS-91 Surpass Piston Pin: FS-91 Surpass
3.3 out of 5 Customer Rating
Piston Pin: FS-91 Surpass
$10.86
Reed Valve Assembly: GT33 Reed Valve Assembly: GT33
5 out of 5 Customer Rating
Reed Valve Assembly: GT33
$26.99
Screw Set (8): 15LA Screw Set (8): 15LA
3.9 out of 5 Customer Rating
Screw Set (8): 15LA
$8.46
Valve Throttle WLA-2: GT55 Valve Throttle WLA-2: GT55
4.1 out of 5 Customer Rating
Valve Throttle WLA-2: GT55
$15.76
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