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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1,153-1,176 of 1,755 Results
Crank Pin Stop Screw: GF40 Crank Pin Stop Screw: GF40
5 out of 5 Customer Rating
Crank Pin Stop Screw: GF40
$13.83
Cylinder Head: FT-160 Cylinder Head: FT-160
4.5 out of 5 Customer Rating
Cylinder Head: FT-160
$87.19
Cylinder Head: FF-320 Cylinder Head: FF-320
5 out of 5 Customer Rating
Cylinder Head: FF-320
$76.85
Cylinder Liner: FS-62V Cylinder Liner: FS-62V
5 out of 5 Customer Rating
Cylinder Liner: FS-62V
$35.47
Bubbleless Clunk Bubbleless Clunk
3.3 out of 5 Customer Rating
Bubbleless Clunk
$21.04
Carburetor Gasket: 200 Surpass Carburetor Gasket: 200 Surpass
4.1 out of 5 Customer Rating
Carburetor Gasket: 200 Surpass
$7.46
Carburetor Reed Valve Gasket: GT33 Carburetor Reed Valve Gasket: GT33
4.1 out of 5 Customer Rating
Carburetor Reed Valve Gasket: GT33
$10.94
Intake Manifold Set: Sirius 7 Intake Manifold Set: Sirius 7
3.9 out of 5 Customer Rating
Intake Manifold Set: Sirius 7
$29.48
Intake Manifold: FS-62V Intake Manifold: FS-62V
3.3 out of 5 Customer Rating
Intake Manifold: FS-62V
$5.74 Price reduced from $19.14 to
Clearance Sale! ⓘ
Needle Holder #7H #7M #7L Needle Holder #7H #7M #7L
4.1 out of 5 Customer Rating
Needle Holder #7H #7M #7L
$11.80
O-Ring PRC: 120Surpass O-Ring PRC: 120Surpass
4.7 out of 5 Customer Rating
O-Ring PRC: 120Surpass
$6.49
Piston Pin Retainer: 81VR-M Piston Pin Retainer: 81VR-M
3.9 out of 5 Customer Rating
Piston Pin Retainer: 81VR-M
$6.49
Piston: GT22 Piston: GT22
4.1 out of 5 Customer Rating
Piston: GT22
$63.22
Piston Pin: 32SX-H Piston Pin: 32SX-H
3.9 out of 5 Customer Rating
Piston Pin: 32SX-H
$11.91
Pushrods: 56FS-a Pushrods: 56FS-a
3.7 out of 5 Customer Rating
Pushrods: 56FS-a
$9.49
Rocker Cover, Black: FSa-56II Rocker Cover, Black: FSa-56II
3.3 out of 5 Customer Rating
Rocker Cover, Black: FSa-56II
$5.76 Price reduced from $19.22 to
Clearance Sale! ⓘ
Screw Set (12): 108FSR Screw Set (12): 108FSR
4.3 out of 5 Customer Rating
Screw Set (12): 108FSR
$17.16
Standoff 5x44.5mm 1-3/4" (4): GT55 Standoff 5x44.5mm 1-3/4" (4): GT55
4.7 out of 5 Customer Rating
Standoff 5x44.5mm 1-3/4" (4): GT55
$44.10
Valve Spring Retainer: 90-300 Valve Spring Retainer: 90-300
5 out of 5 Customer Rating
Valve Spring Retainer: 90-300
$6.49
Valve Spring Exhaust: FS-120 Surpass Valve Spring Exhaust: FS-120 Surpass
5 out of 5 Customer Rating
Valve Spring Exhaust: FS-120 Surpass
$6.49
Woodruff Key: 108-300 Woodruff Key: 108-300
5 out of 5 Customer Rating
Woodruff Key: 108-300
$8.49
Crankcase: 160FX Crankcase: 160FX
5 out of 5 Customer Rating
Crankcase: 160FX
$152.36
Crankcase: 55AX Crankcase: 55AX
3.3 out of 5 Customer Rating
Crankcase: 55AX
$67.24
Crankcase: 56 FS Crankcase: 56 FS
3.3 out of 5 Customer Rating
Crankcase: 56 FS
$57.96
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