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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176-199 of 1,808 Results
Locknut Set 3/8M5S Locknut Set 3/8M5S
3.9 out of 5 Customer Rating
Locknut Set 3/8M5S
$26.24
90 Degree Muffler Extension: 120AX 90 Degree Muffler Extension: 120AX
4.3 out of 5 Customer Rating
90 Degree Muffler Extension: 120AX
$34.86
Silencer F-5030: FS81 Alpha Silencer F-5030: FS81 Alpha
5 out of 5 Customer Rating
Silencer F-5030: FS81 Alpha
$57.78
Muffler Screws 10FP FSR (2) Muffler Screws 10FP FSR (2)
5 out of 5 Customer Rating
Muffler Screws 10FP FSR (2)
$6.49
Assembly Screw: 55AX Assembly Screw: 55AX
5 out of 5 Customer Rating
Assembly Screw: 55AX
$9.85
Back Plate Gasket O-Ring: FL70 Back Plate Gasket O-Ring: FL70
3.3 out of 5 Customer Rating
Back Plate Gasket O-Ring: FL70
$6.49
Pushrod Cover: FS-40 Surpass Pushrod Cover: FS-40 Surpass
4.5 out of 5 Customer Rating
Pushrod Cover: FS-40 Surpass
$6.99
PCV Valve Set: GF40 PCV Valve Set: GF40
5 out of 5 Customer Rating
PCV Valve Set: GF40
$14.84
Piston: 120AX Piston: 120AX
3.9 out of 5 Customer Rating
Piston: 120AX
$57.78
Rocker Arm Support Assembly: FS-40-48S Rocker Arm Support Assembly: FS-40-48S
3.7 out of 5 Customer Rating
Rocker Arm Support Assembly: FS-40-48S
$11.72
Rocker Cover: Sirius 7 Rocker Cover: Sirius 7
4.7 out of 5 Customer Rating
Rocker Cover: Sirius 7
$14.77
Rotor Stop Screw #40B Rotor Stop Screw #40B
3.9 out of 5 Customer Rating
Rotor Stop Screw #40B
$7.46
Screw Set (8): 37SZ-H Screw Set (8): 37SZ-H
5 out of 5 Customer Rating
Screw Set (8): 37SZ-H
$9.85
Screw Set (12): FS-120 Surpass Screw Set (12): FS-120 Surpass
4.7 out of 5 Customer Rating
Screw Set (12): FS-120 Surpass
$17.08
Bearing R-1350ZZ Bearing R-1350ZZ
5 out of 5 Customer Rating
Bearing R-1350ZZ
$14.99
Main Shaft :3820-1200 .25 Main Shaft :3820-1200 .25
5 out of 5 Customer Rating
Main Shaft :3820-1200 .25
$8.99
Security Ring: OMA-38 Series Security Ring: OMA-38 Series
3.3 out of 5 Customer Rating
Security Ring: OMA-38 Series
$5.99
Crankshaft Clamp: GT15, 105, 91 Heli Crankshaft Clamp: GT15, 105, 91 Heli
3.3 out of 5 Customer Rating
Crankshaft Clamp: GT15, 105, 91 Heli
$25.44
Pump Governor Cover 60N 70N Pump Governor Cover 60N 70N
3.1 out of 5 Customer Rating
Pump Governor Cover 60N 70N
$6.49
M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A
4.1 out of 5 Customer Rating
M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A
$36.85
Booster Cable: Single Booster Cable: Single
5 out of 5 Customer Rating
Booster Cable: Single
$21.04
Carburetor Rotor: 61ER Carburetor Rotor: 61ER
4.1 out of 5 Customer Rating
Carburetor Rotor: 61ER
$45.99
Spring Choke Friction: WLA-2, GT55 Spring Choke Friction: WLA-2, GT55
4.1 out of 5 Customer Rating
Spring Choke Friction: WLA-2, GT55
$5.99
Carburetor Rotor: 61E New 91HZ Carburetor Rotor: 61E New 91HZ
4.7 out of 5 Customer Rating
Carburetor Rotor: 61E New 91HZ
$48.32
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