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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673-696 of 1,755 Results
Cover Plate: FS81 Alpha Cover Plate: FS81 Alpha
5 out of 5 Customer Rating
Cover Plate: FS81 Alpha
$17.16
Cover Plate: FS81 Alpha Pump Cover Plate: FS81 Alpha Pump
4.8 out of 5 Customer Rating
Cover Plate: FS81 Alpha Pump
$19.14
Cover Plate: FS-95V Cover Plate: FS-95V
3.4 out of 5 Customer Rating
Cover Plate: FS-95V
$21.17
Crankcase: 120AX Crankcase: 120AX
5 out of 5 Customer Rating
Crankcase: 120AX
$135.55
Crankshaft: GT22 Crankshaft: GT22
4.4 out of 5 Customer Rating
Crankshaft: GT22
$125.57
Cylinder Head: Sirius 7 Cylinder Head: Sirius 7
4.8 out of 5 Customer Rating
Cylinder Head: Sirius 7
$97.71
Cylinder Liner: 120 240 Cylinder Liner: 120 240
4 out of 5 Customer Rating
Cylinder Liner: 120 240
$52.57
Cylinder Liner: GT15HZ Cylinder Liner: GT15HZ
5 out of 5 Customer Rating
Cylinder Liner: GT15HZ
$105.05
Head Gasket .4 Aluminum: Sirius 7 Head Gasket .4 Aluminum: Sirius 7
5 out of 5 Customer Rating
Head Gasket .4 Aluminum: Sirius 7
$6.49
90 Degree Muffler Extension Screws (2): 120AX 90 Degree Muffler Extension Screws (2): 120AX
3.6 out of 5 Customer Rating
90 Degree Muffler Extension Screws (2): 120AX
$6.49
Throttle Lever Assembly #2CK Throttle Lever Assembly #2CK
3.6 out of 5 Customer Rating
Throttle Lever Assembly #2CK
$7.49
Propeller Shaft Set: 3805 3810 Propeller Shaft Set: 3805 3810
4.4 out of 5 Customer Rating
Propeller Shaft Set: 3805 3810
$8.39 Price reduced from $27.99 to
Clearance Sale! ⓘ
Speed Hex Driver Replacement Tip 2.5 Speed Hex Driver Replacement Tip 2.5
3.6 out of 5 Customer Rating
Speed Hex Driver Replacement Tip 2.5
$18.39
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
Connecting Rod Plate: GGT10 Connecting Rod Plate: GGT10
3.1 out of 5 Customer Rating
Connecting Rod Plate: GGT10
$22.26
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
Crankshaft: 25AX Crankshaft: 25AX
3.3 out of 5 Customer Rating
Crankshaft: 25AX
$43.99
Cylinder Head: FS155A-P Cylinder Head: FS155A-P
3.1 out of 5 Customer Rating
Cylinder Head: FS155A-P
$114.61
Cylinder Head: GT15 Cylinder Head: GT15
5 out of 5 Customer Rating
Cylinder Head: GT15
$52.69
Drive Spacer: GT33 Drive Spacer: GT33
4.1 out of 5 Customer Rating
Drive Spacer: GT33
$13.26 Price reduced from $44.22 to
Clearance Sale! ⓘ
Cylinder Liner: 140RX Cylinder Liner: 140RX
5 out of 5 Customer Rating
Cylinder Liner: 140RX
$106.01
Drive Spacer: GT60 Drive Spacer: GT60
5 out of 5 Customer Rating
Drive Spacer: GT60
$38.03
Gasket Set: 50SX-H Gasket Set: 50SX-H
3.7 out of 5 Customer Rating
Gasket Set: 50SX-H
$8.43
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