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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385-408 of 1,605 Results
Intake Pipe AS-R: FT-120 160 Intake Pipe AS-R: FT-120 160
4.1 out of 5 Customer Rating
Intake Pipe AS-R: FT-120 160
$22.30
Mixture Control Valve: 61ER Mixture Control Valve: 61ER
5 out of 5 Customer Rating
Mixture Control Valve: 61ER
$8.84 Price reduced from $29.49 to
Clearance Sale! ⓘ
Exhaust Header Pipe Assembly: 200 Surpass Exhaust Header Pipe Assembly: 200 Surpass
5 out of 5 Customer Rating
Exhaust Header Pipe Assembly: 200 Surpass
$22.26
Exhaust Header Pipe Assembly F-4050: FS-62V Exhaust Header Pipe Assembly F-4050: FS-62V
4.3 out of 5 Customer Rating
Exhaust Header Pipe Assembly F-4050: FS-62V
$14.84
Muffler Extension Screws 120AX (2) Muffler Extension Screws 120AX (2)
5 out of 5 Customer Rating
Muffler Extension Screws 120AX (2)
$6.49
O-Ring P3-FKM 61H: GT15 O-Ring P3-FKM 61H: GT15
3.3 out of 5 Customer Rating
O-Ring P3-FKM 61H: GT15
$10.94
Piston: FS155A-P Piston: FS155A-P
4.1 out of 5 Customer Rating
Piston: FS155A-P
$17.39 Price reduced from $57.96 to
Clearance Sale! ⓘ
Rocker Arm: FS95V Rocker Arm: FS95V
3.7 out of 5 Customer Rating
Rocker Arm: FS95V
$28.45
Rocker Arm Shaft: Sirius 7 Rocker Arm Shaft: Sirius 7
3.3 out of 5 Customer Rating
Rocker Arm Shaft: Sirius 7
$9.44
Cap Screw 5x15mm (10): GT55 Cap Screw 5x15mm (10): GT55
4.7 out of 5 Customer Rating
Cap Screw 5x15mm (10): GT55
$13.78
Screw Set: FS-48 Surpass Screw Set: FS-48 Surpass
4.7 out of 5 Customer Rating
Screw Set: FS-48 Surpass
$10.90
Allen Head Screws M3.5x12 (10) Allen Head Screws M3.5x12 (10)
5 out of 5 Customer Rating
Allen Head Screws M3.5x12 (10)
$9.85
Throttle Lever #2CK Throttle Lever #2CK
4.5 out of 5 Customer Rating
Throttle Lever #2CK
$6.49
Exhaust Valve Assembly: 200 Surpass Exhaust Valve Assembly: 200 Surpass
5 out of 5 Customer Rating
Exhaust Valve Assembly: 200 Surpass
$44.22
Intake Valve: 56 FS Intake Valve: 56 FS
3.7 out of 5 Customer Rating
Intake Valve: 56 FS
$5.72 Price reduced from $19.05 to
Clearance Sale! ⓘ
Valve Spring: 20-300 Valve Spring: 20-300
5 out of 5 Customer Rating
Valve Spring: 20-300
$6.49
Prop Shaft: OMA-50 Series Prop Shaft: OMA-50 Series
3.3 out of 5 Customer Rating
Prop Shaft: OMA-50 Series
$10.49 Price reduced from $34.99 to
Clearance Sale! ⓘ
Cover Plate with BPS-1 Mount: 55HZ-R Cover Plate with BPS-1 Mount: 55HZ-R
5 out of 5 Customer Rating
Cover Plate with BPS-1 Mount: 55HZ-R
$11.72
Crankcase: FS155A-P Crankcase: FS155A-P
4.5 out of 5 Customer Rating
Crankcase: FS155A-P
$174.52
Crankshaft: FS-62V Crankshaft: FS-62V
4.7 out of 5 Customer Rating
Crankshaft: FS-62V
$66.17
Crankshaft: GF40 Crankshaft: GF40
3.3 out of 5 Customer Rating
Crankshaft: GF40
$193.59
Cylinder Head: FS-120 Surpass III Cylinder Head: FS-120 Surpass III
4.1 out of 5 Customer Rating
Cylinder Head: FS-120 Surpass III
$97.80
Cylinder Jacket: Sirius 7 Cylinder Jacket: Sirius 7
5 out of 5 Customer Rating
Cylinder Jacket: Sirius 7
$35.01 Price reduced from $97.71 to
Clearance Sale! ⓘ
Cylinder Liner: 61SX WX Cylinder Liner: 61SX WX
4.5 out of 5 Customer Rating
Cylinder Liner: 61SX WX
$80.99
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