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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121-144 of 1,755 Results
Cam Cover: FS155A-P Cam Cover: FS155A-P
5 out of 5 Customer Rating
Cam Cover: FS155A-P
$11.91
Carburetor Rotor: 61H, GT15 Carburetor Rotor: 61H, GT15
4.1 out of 5 Customer Rating
Carburetor Rotor: 61H, GT15
$26.24
Crankcase: 75AX Crankcase: 75AX
3.3 out of 5 Customer Rating
Crankcase: 75AX
$119.78
Crankshaft: 50SX-H Crankshaft: 50SX-H
4.1 out of 5 Customer Rating
Crankshaft: 50SX-H
$55.12
Cylinder Liner: FS-40 Cylinder Liner: FS-40
4.1 out of 5 Customer Rating
Cylinder Liner: FS-40
$25.94
Drive Washer: 91FX Drive Washer: 91FX
5 out of 5 Customer Rating
Drive Washer: 91FX
$16.09
Intake Manifold Assembly: FS-91 Surpass II Intake Manifold Assembly: FS-91 Surpass II
5 out of 5 Customer Rating
Intake Manifold Assembly: FS-91 Surpass II
$29.49
Piston Pin: FS-90 160 Piston Pin: FS-90 160
4.1 out of 5 Customer Rating
Piston Pin: FS-90 160
$10.86
Piston Ring: FS30S Piston Ring: FS30S
3.9 out of 5 Customer Rating
Piston Ring: FS30S
$26.24
Rotor Stop #3A #2A Rotor Stop #3A #2A
5 out of 5 Customer Rating
Rotor Stop #3A #2A
$6.49
Rocker Arm Support Assembly: FS-20 Rocker Arm Support Assembly: FS-20
5 out of 5 Customer Rating
Rocker Arm Support Assembly: FS-20
$10.90
Cylinder Liner: 200 Surpass Cylinder Liner: 200 Surpass
5 out of 5 Customer Rating
Cylinder Liner: 200 Surpass
$17.70 Price reduced from $59.03 to
Clearance Sale! ⓘ
Silencer Body Gasket: 200 Surpass Silencer Body Gasket: 200 Surpass
3.3 out of 5 Customer Rating
Silencer Body Gasket: 200 Surpass
$7.46
Piston: 200 Surpass Piston: 200 Surpass
5 out of 5 Customer Rating
Piston: 200 Surpass
$57.96
Pushrod: FS-40 Surpass Pushrod: FS-40 Surpass
3.3 out of 5 Customer Rating
Pushrod: FS-40 Surpass
$8.49
Pushrod: FR5 Pushrod: FR5
5 out of 5 Customer Rating
Pushrod: FR5
$10.86
Valve Spring Retainer: FS-70SII Valve Spring Retainer: FS-70SII
3.3 out of 5 Customer Rating
Valve Spring Retainer: FS-70SII
$6.49
Carburetor 61H: GT15 Carburetor 61H: GT15
3.7 out of 5 Customer Rating
Carburetor 61H: GT15
$147.01
Cylinder Head Screws: 56 FS Cylinder Head Screws: 56 FS
3.3 out of 5 Customer Rating
Cylinder Head Screws: 56 FS
$9.85
Front Ball Bearing: 40, 46, 48 Front Ball Bearing: 40, 46, 48
3.7 out of 5 Customer Rating
Front Ball Bearing: 40, 46, 48
$21.17
Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4 Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4
4.9 out of 5 Customer Rating
Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4
$111.36
Carburetor Reducer 6.5mm, Red: B2101 Speed Carburetor Reducer 6.5mm, Red: B2101 Speed
3.7 out of 5 Customer Rating
Carburetor Reducer 6.5mm, Red: B2101 Speed
$21.10
T-1070SC L52 Pipe T-1070SC L52 Pipe
5 out of 5 Customer Rating
T-1070SC L52 Pipe
$135.44
TR02 Tuned Silencer Set EFRA2165 TR02 Tuned Silencer Set EFRA2165
4.7 out of 5 Customer Rating
TR02 Tuned Silencer Set EFRA2165
$227.84
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