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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1,352-1,375 of 1,808 Results
Gasket Carburetor: 120-240 Gasket Carburetor: 120-240
5 out of 5 Customer Rating
Gasket Carburetor: 120-240
$6.49
Head Gasket: 10LA Head Gasket: 10LA
3.3 out of 5 Customer Rating
Head Gasket: 10LA
$6.49
Needle Adj Screw New: #60B Needle Adj Screw New: #60B
3.3 out of 5 Customer Rating
Needle Adj Screw New: #60B
$7.57
Piston Pin Retainer: 40PS Piston Pin Retainer: 40PS
5 out of 5 Customer Rating
Piston Pin Retainer: 40PS
$6.49
Piston Pin: 55HZ Hyper Piston Pin: 55HZ Hyper
4.7 out of 5 Customer Rating
Piston Pin: 55HZ Hyper
$10.94
Piston Pin: FS-120 Piston Pin: FS-120
3.9 out of 5 Customer Rating
Piston Pin: FS-120
$14.73
Prop Nut: 61-120 Prop Nut: 61-120
3.9 out of 5 Customer Rating
Prop Nut: 61-120
$6.49
Prop Washer 10-12 Prop Washer 10-12
5 out of 5 Customer Rating
Prop Washer 10-12
$6.49
Pushrod: FS-62V Pushrod: FS-62V
5 out of 5 Customer Rating
Pushrod: FS-62V
$9.49
Needle Assembly Screw: 65LA Needle Assembly Screw: 65LA
5 out of 5 Customer Rating
Needle Assembly Screw: 65LA
$6.49
Valve Spring Retainer: GF40 Valve Spring Retainer: GF40
4.1 out of 5 Customer Rating
Valve Spring Retainer: GF40
$13.83
Main Shaft Stopper SET: OMA-50 Main Shaft Stopper SET: OMA-50
4.7 out of 5 Customer Rating
Main Shaft Stopper SET: OMA-50
$7.99
Bearing Rear: 65AX Bearing Rear: 65AX
5 out of 5 Customer Rating
Bearing Rear: 65AX
$22.16
Cam Holder: Sirius 7 Cam Holder: Sirius 7
5 out of 5 Customer Rating
Cam Holder: Sirius 7
$48.41
Cam Cover: FS-40 Surpass Cam Cover: FS-40 Surpass
5 out of 5 Customer Rating
Cam Cover: FS-40 Surpass
$9.44
Carburetor Screw: #103A2A Carburetor Screw: #103A2A
3.3 out of 5 Customer Rating
Carburetor Screw: #103A2A
$6.49
Connecting Rod Plate: GGT10 Connecting Rod Plate: GGT10
3.1 out of 5 Customer Rating
Connecting Rod Plate: GGT10
$22.26
Cover Plate: 56 FS Cover Plate: 56 FS
3.7 out of 5 Customer Rating
Cover Plate: 56 FS
$15.76
Back Plate Parallel Pin: Sirius 7 Back Plate Parallel Pin: Sirius 7
4.5 out of 5 Customer Rating
Back Plate Parallel Pin: Sirius 7
$6.49
Cover Plate: FS72 Alpha Cover Plate: FS72 Alpha
4.5 out of 5 Customer Rating
Cover Plate: FS72 Alpha
$17.16
Cover Plate: 91SZ-H Cover Plate: 91SZ-H
5 out of 5 Customer Rating
Cover Plate: 91SZ-H
$20.99
Crankcase: GGT10 Crankcase: GGT10
4.1 out of 5 Customer Rating
Crankcase: GGT10
$104.09
Crankshaft: 25AX Crankshaft: 25AX
3.3 out of 5 Customer Rating
Crankshaft: 25AX
$43.99
Cylinder Head: FS81 Alpha Cylinder Head: FS81 Alpha
5 out of 5 Customer Rating
Cylinder Head: FS81 Alpha
$76.86
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