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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93-116 of 1,605 Results
Intake Pipe AS-R: FT-240 Intake Pipe AS-R: FT-240
4.8 out of 5 Customer Rating
Intake Pipe AS-R: FT-240
$22.16
Hex Head Screw 5x55mm (10) Hex Head Screw 5x55mm (10)
3.2 out of 5 Customer Rating
Hex Head Screw 5x55mm (10)
$13.78
Pushrod Cover Assembly: 200 Surpass Pushrod Cover Assembly: 200 Surpass
5 out of 5 Customer Rating
Pushrod Cover Assembly: 200 Surpass
$11.84
Air Bleed Screw: FS-20, FS-40 Air Bleed Screw: FS-20, FS-40
3.4 out of 5 Customer Rating
Air Bleed Screw: FS-20, FS-40
$6.49
Drive Washer: GT22 Drive Washer: GT22
4 out of 5 Customer Rating
Drive Washer: GT22
$39.91
Locknut Nozzle #2BK Locknut Nozzle #2BK
5 out of 5 Customer Rating
Locknut Nozzle #2BK
$2.59 Price reduced from $8.66 to
Clearance Sale! ⓘ
Spring Needle Adjust WLA-2: GT55 Spring Needle Adjust WLA-2: GT55
5 out of 5 Customer Rating
Spring Needle Adjust WLA-2: GT55
$10.99
Crankshaft: O.S. FS-64V Crankshaft: O.S. FS-64V
4.7 out of 5 Customer Rating
Crankshaft: O.S. FS-64V
$66.99
Prop Shaft: OMA-38 Series Prop Shaft: OMA-38 Series
5 out of 5 Customer Rating
Prop Shaft: OMA-38 Series
$27.99
Crankshaft: 20-25FP Crankshaft: 20-25FP
5 out of 5 Customer Rating
Crankshaft: 20-25FP
$28.59
Needle Holder FT-120-300 Needle Holder FT-120-300
4 out of 5 Customer Rating
Needle Holder FT-120-300
$3.54 Price reduced from $11.80 to
Clearance Sale! ⓘ
Throttle Arm Assembly WLA-2: GT55 Throttle Arm Assembly WLA-2: GT55
4 out of 5 Customer Rating
Throttle Arm Assembly WLA-2: GT55
$7.46
Carburetor Reducer 8mm, Red: Speed 21 V-Spec Carburetor Reducer 8mm, Red: Speed 21 V-Spec
4 out of 5 Customer Rating
Carburetor Reducer 8mm, Red: Speed 21 V-Spec
$21.10
Rear Bearing: 12TR Rear Bearing: 12TR
5 out of 5 Customer Rating
Rear Bearing: 12TR
$61.99
Carburetor Rotor: #60W, FL70 Carburetor Rotor: #60W, FL70
4.1 out of 5 Customer Rating
Carburetor Rotor: #60W, FL70
$15.99
Piston Pin: 15RX Piston Pin: 15RX
4.1 out of 5 Customer Rating
Piston Pin: 15RX
$6.29
Cylinder Head: .25AX Cylinder Head: .25AX
5 out of 5 Customer Rating
Cylinder Head: .25AX
$19.99
Screw Set (12): FS-91 Surpass Screw Set (12): FS-91 Surpass
4.4 out of 5 Customer Rating
Screw Set (12): FS-91 Surpass
$17.08
Valve Spring Intake: FS-120 Surpass Valve Spring Intake: FS-120 Surpass
4.4 out of 5 Customer Rating
Valve Spring Intake: FS-120 Surpass
$6.49
Cylinder Liner: GT15HZ Cylinder Liner: GT15HZ
5 out of 5 Customer Rating
Cylinder Liner: GT15HZ
$105.05
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
Rocker Arm Shaft: FS-95V Rocker Arm Shaft: FS-95V
4.8 out of 5 Customer Rating
Rocker Arm Shaft: FS-95V
$6.49
Rear Bearing: 108-160 Rear Bearing: 108-160
4.9 out of 5 Customer Rating
Rear Bearing: 108-160
$26.34
Connecting Rod Plate: GGT10 Connecting Rod Plate: GGT10
3.1 out of 5 Customer Rating
Connecting Rod Plate: GGT10
$6.68 Price reduced from $22.26 to
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