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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289-312 of 1,755 Results
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
Heat Sink Head: 37SZ-H Heat Sink Head: 37SZ-H
4 out of 5 Customer Rating
Heat Sink Head: 37SZ-H
$50.72
Silencer: F-6010, 200 Surpass Silencer: F-6010, 200 Surpass
4 out of 5 Customer Rating
Silencer: F-6010, 200 Surpass
$87.15
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
Cover Plate: 75AX Cover Plate: 75AX
4.2 out of 5 Customer Rating
Cover Plate: 75AX
$17.16
Connecting Rod: FS-61, 91 Connecting Rod: FS-61, 91
5 out of 5 Customer Rating
Connecting Rod: FS-61, 91
$26.24
Crankshaft: FS81 Alpha Crankshaft: FS81 Alpha
5 out of 5 Customer Rating
Crankshaft: FS81 Alpha
$73.87
Cylinder Head: FSa-56II Cylinder Head: FSa-56II
4.8 out of 5 Customer Rating
Cylinder Head: FSa-56II
$70.43
Cylinder Head: FS-62V Cylinder Head: FS-62V
5 out of 5 Customer Rating
Cylinder Head: FS-62V
$76.88
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
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
Piston: GT60 Piston: GT60
4.8 out of 5 Customer Rating
Piston: GT60
$152.45
Cap Screw 5x50mm (10): GT55 Cap Screw 5x50mm (10): GT55
5 out of 5 Customer Rating
Cap Screw 5x50mm (10): GT55
$13.78
Woodruff Key: 120-240 Woodruff Key: 120-240
4.4 out of 5 Customer Rating
Woodruff Key: 120-240
$6.45
Lock Washer 4mm Lock Washer 4mm
4.8 out of 5 Customer Rating
Lock Washer 4mm
$5.74 Price reduced from $19.14 to
Clearance Sale! ⓘ
Bearing L-1040X2ZZ Bearing L-1040X2ZZ
5 out of 5 Customer Rating
Bearing L-1040X2ZZ
$14.99
Main Shaft: OMA3825-750W Main Shaft: OMA3825-750W
4.6 out of 5 Customer Rating
Main Shaft: OMA3825-750W
$8.49
Slide Valve Stop Screw #21J Slide Valve Stop Screw #21J
5 out of 5 Customer Rating
Slide Valve Stop Screw #21J
$11.87
Ball Link No.5 18TM Ball Link No.5 18TM
4.4 out of 5 Customer Rating
Ball Link No.5 18TM
$16.09
Inner Head With O-Ring: O.S. Speed B2104 Inner Head With O-Ring: O.S. Speed B2104
3.8 out of 5 Customer Rating
Inner Head With O-Ring: O.S. Speed B2104
$59.01
Carburetor Body: 21M(B), 21XZ-R Speed Carburetor Body: 21M(B), 21XZ-R Speed
4 out of 5 Customer Rating
Carburetor Body: 21M(B), 21XZ-R Speed
$97.81
Carburetor Washe:r #20A, B Carburetor Washe:r #20A, B
4 out of 5 Customer Rating
Carburetor Washe:r #20A, B
$6.49
Crankshaft: R2103 Speed Crankshaft: R2103 Speed
3.6 out of 5 Customer Rating
Crankshaft: R2103 Speed
$215.83
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