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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97-120 of 1,755 Results
Speed P3 Gold Ultra Hot Plug Speed P3 Gold Ultra Hot Plug
5 out of 5 Customer Rating
Speed P3 Gold Ultra Hot Plug
$16.99
Venturi: 15FP S Venturi: 15FP S
4 out of 5 Customer Rating
Venturi: 15FP S
$9.85
Gasket Head, .2mm: 105HZ Gasket Head, .2mm: 105HZ
4.1 out of 5 Customer Rating
Gasket Head, .2mm: 105HZ
$7.46
Piston Pin Retainer: 61RX SX Piston Pin Retainer: 61RX SX
3.2 out of 5 Customer Rating
Piston Pin Retainer: 61RX SX
$6.45
Rocker Arm Assembly: F61-300 Rocker Arm Assembly: F61-300
4 out of 5 Customer Rating
Rocker Arm Assembly: F61-300
$29.49
Muffler Extension: 120AX Muffler Extension: 120AX
3.2 out of 5 Customer Rating
Muffler Extension: 120AX
$26.24
Carburetor #10G: 15LA Carburetor #10G: 15LA
5 out of 5 Customer Rating
Carburetor #10G: 15LA
$25.29
Motor Mount: 25FX, 32SX, 35AX Motor Mount: 25FX, 32SX, 35AX
3.7 out of 5 Customer Rating
Motor Mount: 25FX, 32SX, 35AX
$25.29
Motor Mount: 15LA Motor Mount: 15LA
4.1 out of 5 Customer Rating
Motor Mount: 15LA
$22.26
Heat Sink Head: 91SX-H Heat Sink Head: 91SX-H
5 out of 5 Customer Rating
Heat Sink Head: 91SX-H
$17.39 Price reduced from $57.99 to
Clearance Sale! ⓘ
Control Arm: #9B Control Arm: #9B
4.5 out of 5 Customer Rating
Control Arm: #9B
$14.73
Manifold Seal: FT-120-300 Manifold Seal: FT-120-300
3.6 out of 5 Customer Rating
Manifold Seal: FT-120-300
$11.84
Screw Set: FS-48 Surpass Screw Set: FS-48 Surpass
4.7 out of 5 Customer Rating
Screw Set: FS-48 Surpass
$10.90
Dust Cover: #2BK Dust Cover: #2BK
4 out of 5 Customer Rating
Dust Cover: #2BK
$10.86
Piston Pin Retainer: 50SX-H Piston Pin Retainer: 50SX-H
4.4 out of 5 Customer Rating
Piston Pin Retainer: 50SX-H
$7.46
M11 Header Pipe Nut: FS070S and FS91S II M11 Header Pipe Nut: FS070S and FS91S II
3.7 out of 5 Customer Rating
M11 Header Pipe Nut: FS070S and FS91S II
$6.49
Fuel Inlet Nipple: 12-240 Fuel Inlet Nipple: 12-240
4.9 out of 5 Customer Rating
Fuel Inlet Nipple: 12-240
$6.49
Rotor Spring #2CK #2B Rotor Spring #2CK #2B
5 out of 5 Customer Rating
Rotor Spring #2CK #2B
$6.49
Muffler Screws L (2): 120AX Muffler Screws L (2): 120AX
3.9 out of 5 Customer Rating
Muffler Screws L (2): 120AX
$6.49
Prop Washer: 20-40 Prop Washer: 20-40
5 out of 5 Customer Rating
Prop Washer: 20-40
$6.49
Security Ring: OMA-2810 OMA-2815 Security Ring: OMA-2810 OMA-2815
5 out of 5 Customer Rating
Security Ring: OMA-2810 OMA-2815
$5.99
Security Ring: OMA-2820-950 Security Ring: OMA-2820-950
3.9 out of 5 Customer Rating
Security Ring: OMA-2820-950
$5.99
Type F Glow Plug Medium: Four Stroke Type F Glow Plug Medium: Four Stroke
5 out of 5 Customer Rating
Type F Glow Plug Medium: Four Stroke
$13.99
Cam Cover: FS155A-P Cam Cover: FS155A-P
5 out of 5 Customer Rating
Cam Cover: FS155A-P
$11.91
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