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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1,513-1,536 of 1,812 Results
Cylinder Head: 105HZ Cylinder Head: 105HZ
5 out of 5 Customer Rating
Cylinder Head: 105HZ
$130.89
Cylinder Head: 91SX-H Cylinder Head: 91SX-H
3.1 out of 5 Customer Rating
Cylinder Head: 91SX-H
$99.99
Exhaust Pipe: 40-300 Exhaust Pipe: 40-300
5 out of 5 Customer Rating
Exhaust Pipe: 40-300
$11.84
Intake Manifold Assembly: FT-240/300 Intake Manifold Assembly: FT-240/300
5 out of 5 Customer Rating
Intake Manifold Assembly: FT-240/300
$54.99
Head Gasket: GT33 Head Gasket: GT33
3.3 out of 5 Customer Rating
Head Gasket: GT33
$14.84
Locknut Set 3/8M5S Locknut Set 3/8M5S
3.9 out of 5 Customer Rating
Locknut Set 3/8M5S
$26.24
Silencer F-5030: FS81 Alpha Silencer F-5030: FS81 Alpha
5 out of 5 Customer Rating
Silencer F-5030: FS81 Alpha
$57.78
90 Degree Muffler Extension: 120AX 90 Degree Muffler Extension: 120AX
4.3 out of 5 Customer Rating
90 Degree Muffler Extension: 120AX
$34.86
Muffler Screws 10FP FSR (2) Muffler Screws 10FP FSR (2)
5 out of 5 Customer Rating
Muffler Screws 10FP FSR (2)
$6.49
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
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
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
Carburetor Rotor: 61E New 91HZ Carburetor Rotor: 61E New 91HZ
4.7 out of 5 Customer Rating
Carburetor Rotor: 61E New 91HZ
$48.32
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
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