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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193-216 of 1,814 Results
Crank Pin Stop Screw: Sirius 7 Crank Pin Stop Screw: Sirius 7
4.4 out of 5 Customer Rating
Crank Pin Stop Screw: Sirius 7
$22.24
Cylinder Head: FS110A Cylinder Head: FS110A
3.4 out of 5 Customer Rating
Cylinder Head: FS110A
$87.19
Drive Washer: GGT10 Drive Washer: GGT10
4.4 out of 5 Customer Rating
Drive Washer: GGT10
$17.16
Drive Washer: GT15 Drive Washer: GT15
4.8 out of 5 Customer Rating
Drive Washer: GT15
$39.91
Cylinder Head Gasket: 35AX Cylinder Head Gasket: 35AX
3.6 out of 5 Customer Rating
Cylinder Head Gasket: 35AX
$6.49
Mixture Control Valve 61H: GT15 Mixture Control Valve 61H: GT15
4.4 out of 5 Customer Rating
Mixture Control Valve 61H: GT15
$26.24
Needle: 15LA Needle: 15LA
3.4 out of 5 Customer Rating
Needle: 15LA
$9.85
Needle 61H: GT15 Needle 61H: GT15
5 out of 5 Customer Rating
Needle 61H: GT15
$13.78
Ratchet Spring #1A #10 Ratchet Spring #1A #10
4.8 out of 5 Customer Rating
Ratchet Spring #1A #10
$5.99
Piston Ring: 56 FS Piston Ring: 56 FS
3.6 out of 5 Customer Rating
Piston Ring: 56 FS
$29.49
Return Spring: #6H, #7H, #8H Return Spring: #6H, #7H, #8H
5 out of 5 Customer Rating
Return Spring: #6H, #7H, #8H
$4.99
Slide Valve #60U Slide Valve #60U
5 out of 5 Customer Rating
Slide Valve #60U
$29.60
Crankcase: O.S. FS-64V Crankcase: O.S. FS-64V
3.6 out of 5 Customer Rating
Crankcase: O.S. FS-64V
$69.99
Pump Plate 1 (PD-09): GF30 II Pump Plate 1 (PD-09): GF30 II
5 out of 5 Customer Rating
Pump Plate 1 (PD-09): GF30 II
$44.30
Carburetor Body: 61R, FS81 Alpha Pump Carburetor Body: 61R, FS81 Alpha Pump
5 out of 5 Customer Rating
Carburetor Body: 61R, FS81 Alpha Pump
$87.39
Drive Shaft: Sirius 7 Drive Shaft: Sirius 7
4.4 out of 5 Customer Rating
Drive Shaft: Sirius 7
$34.86
Head Gasket: 15LA Head Gasket: 15LA
4 out of 5 Customer Rating
Head Gasket: 15LA
$6.49
Piston Pin: 91RZ-H Ring Heli Piston Pin: 91RZ-H Ring Heli
5 out of 5 Customer Rating
Piston Pin: 91RZ-H Ring Heli
$11.99
Muffler Assembly Screw E2050-2: 21XM V2 Outboard Muffler Assembly Screw E2050-2: 21XM V2 Outboard
4 out of 5 Customer Rating
Muffler Assembly Screw E2050-2: 21XM V2 Outboard
$9.44
Rocker Arm: FS115A-P Rocker Arm: FS115A-P
4.4 out of 5 Customer Rating
Rocker Arm: FS115A-P
$33.71
Reed Valve Assembly: GT22 Reed Valve Assembly: GT22
5 out of 5 Customer Rating
Reed Valve Assembly: GT22
$26.99
Screw Set(10): 160FX Screw Set(10): 160FX
5 out of 5 Customer Rating
Screw Set(10): 160FX
$17.16
Main Shaft: OMA-2810-1250 Main Shaft: OMA-2810-1250
5 out of 5 Customer Rating
Main Shaft: OMA-2810-1250
$6.99
Main Shaft: OMA3825-750W Main Shaft: OMA3825-750W
4.6 out of 5 Customer Rating
Main Shaft: OMA3825-750W
$8.49
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