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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241-264 of 1,812 Results
Carburetor Rotor: #2A Carburetor Rotor: #2A
4.1 out of 5 Customer Rating
Carburetor Rotor: #2A
$11.72
Head Gasket: 0.1, 0.15, T1201 Speed Head Gasket: 0.1, 0.15, T1201 Speed
3.6 out of 5 Customer Rating
Head Gasket: 0.1, 0.15, T1201 Speed
$9.55
Cylinder & Piston: 21XZ-B Cylinder & Piston: 21XZ-B
4.4 out of 5 Customer Rating
Cylinder & Piston: 21XZ-B
$165.99
Crankshaft: 21XR-B Version II Crankshaft: 21XR-B Version II
4.8 out of 5 Customer Rating
Crankshaft: 21XR-B Version II
$62.78
Needle 3 (21M) Needle 3 (21M)
4 out of 5 Customer Rating
Needle 3 (21M)
$15.99
Cylinder & Piston: 65AX Cylinder & Piston: 65AX
3.3 out of 5 Customer Rating
Cylinder & Piston: 65AX
$138.26
Standoff 5x25.4mm 1" (4): GT55 Standoff 5x25.4mm 1" (4): GT55
4.3 out of 5 Customer Rating
Standoff 5x25.4mm 1" (4): GT55
$36.85
Pushrod: FT-160 Pushrod: FT-160
5 out of 5 Customer Rating
Pushrod: FT-160
$9.44
Cylinder Head: 55AX Cylinder Head: 55AX
3.7 out of 5 Customer Rating
Cylinder Head: 55AX
$34.86
Throttle Lever #2F #2FB Throttle Lever #2F #2FB
4.8 out of 5 Customer Rating
Throttle Lever #2F #2FB
$7.49
Joint Spring T-2040 Joint Spring T-2040
4.1 out of 5 Customer Rating
Joint Spring T-2040
$13.78
Prop Locknut :FS40- 48Surpass Prop Locknut :FS40- 48Surpass
3.3 out of 5 Customer Rating
Prop Locknut :FS40- 48Surpass
$17.08
Connecting Rod: 91SX-H Complete Connecting Rod: 91SX-H Complete
5 out of 5 Customer Rating
Connecting Rod: 91SX-H Complete
$27.48
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
Carburetor Reducer 6.5mm, Red: B2101 Speed Carburetor Reducer 6.5mm, Red: B2101 Speed
3.7 out of 5 Customer Rating
Carburetor Reducer 6.5mm, Red: B2101 Speed
$21.10
Mid Needle Valve Assebly: 61ER, 941HZ-R Mid Needle Valve Assebly: 61ER, 941HZ-R
3.6 out of 5 Customer Rating
Mid Needle Valve Assebly: 61ER, 941HZ-R
$22.30
Head Gasket: B2101 Speed Head Gasket: B2101 Speed
4.7 out of 5 Customer Rating
Head Gasket: B2101 Speed
$12.04
O-Ring Metal Valve: 120Surpass O-Ring Metal Valve: 120Surpass
5 out of 5 Customer Rating
O-Ring Metal Valve: 120Surpass
$6.49
Prop Washer: 40-61 Prop Washer: 40-61
3.7 out of 5 Customer Rating
Prop Washer: 40-61
$6.49
Speed P3 Gold Ultra Hot Plug Speed P3 Gold Ultra Hot Plug
5 out of 5 Customer Rating
Speed P3 Gold Ultra Hot Plug
$16.99
Cylinder and Piston Assembly: O.S. Speed B2104 Cylinder and Piston Assembly: O.S. Speed B2104
4.5 out of 5 Customer Rating
Cylinder and Piston Assembly: O.S. Speed B2104
$193.70
Carburetor Complete #61N: FS72 Alpha Carburetor Complete #61N: FS72 Alpha
5 out of 5 Customer Rating
Carburetor Complete #61N: FS72 Alpha
$102.96
Cylinder Head: GGT15 Cylinder Head: GGT15
4.1 out of 5 Customer Rating
Cylinder Head: GGT15
$52.69
Throttle Lever #1A-#3A Throttle Lever #1A-#3A
4.2 out of 5 Customer Rating
Throttle Lever #1A-#3A
$6.49
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