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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97-120 of 1,812 Results
Front Bearing: 21XZ-B Front Bearing: 21XZ-B
5 out of 5 Customer Rating
Front Bearing: 21XZ-B
$30.44
Crankshaft: B2101 Speed Crankshaft: B2101 Speed
4.5 out of 5 Customer Rating
Crankshaft: B2101 Speed
$205.99
Rear Cover Plate: GT33 Rear Cover Plate: GT33
3.7 out of 5 Customer Rating
Rear Cover Plate: GT33
$34.76
O-Ring Small #2K #2SB O-Ring Small #2K #2SB
4.4 out of 5 Customer Rating
O-Ring Small #2K #2SB
$6.49
Carburetor Screw: #103A2A Carburetor Screw: #103A2A
3.3 out of 5 Customer Rating
Carburetor Screw: #103A2A
$6.49
Throttle Lever #1A-#3A Throttle Lever #1A-#3A
4.2 out of 5 Customer Rating
Throttle Lever #1A-#3A
$6.49
#7 Glow Plug, Medium Hot Air #7 Glow Plug, Medium Hot Air
5 out of 5 Customer Rating
#7 Glow Plug, Medium Hot Air
$11.99
Long Spinner Nut 1/4"-28 Long Spinner Nut 1/4"-28
4.1 out of 5 Customer Rating
Long Spinner Nut 1/4"-28
$11.80
Nipple #7: FS-52 Supass Nipple #7: FS-52 Supass
5 out of 5 Customer Rating
Nipple #7: FS-52 Supass
$6.49
Connecting Rod: Speed B2101, B2102 Connecting Rod: Speed B2101, B2102
4 out of 5 Customer Rating
Connecting Rod: Speed B2101, B2102
$52.58
Muffler Extension: 120AX Muffler Extension: 120AX
3.2 out of 5 Customer Rating
Muffler Extension: 120AX
$26.24
O-Ring Needle: FS/FX/LA O-Ring Needle: FS/FX/LA
3.9 out of 5 Customer Rating
O-Ring Needle: FS/FX/LA
$8.49
High Pressure Check Valve: 91HZ-R High Pressure Check Valve: 91HZ-R
5 out of 5 Customer Rating
High Pressure Check Valve: 91HZ-R
$21.10
Booster Cable: Single Booster Cable: Single
5 out of 5 Customer Rating
Booster Cable: Single
$21.04
Carburetor Reducer, 7.0mm: OS Speed B21 Pink Rhonda Drake Edition Carburetor Reducer, 7.0mm: OS Speed B21 Pink Rhonda Drake Edition
3.4 out of 5 Customer Rating
Carburetor Reducer, 7.0mm: OS Speed B21 Pink Rhonda Drake Edition
$22.11
Gasket Carburetor: 40-61, FT-300 Gasket Carburetor: 40-61, FT-300
3.3 out of 5 Customer Rating
Gasket Carburetor: 40-61, FT-300
$6.49
Thrust Washer: BGX-3500 Thrust Washer: BGX-3500
4.8 out of 5 Customer Rating
Thrust Washer: BGX-3500
$6.49
Thrust Washer: 21-32 Thrust Washer: 21-32
3.3 out of 5 Customer Rating
Thrust Washer: 21-32
$6.49
Exhaust Gasket: GT33 Exhaust Gasket: GT33
5 out of 5 Customer Rating
Exhaust Gasket: GT33
$7.46
Carburetor Reducer 7.0MM AL2, Blue Carburetor Reducer 7.0MM AL2, Blue
5 out of 5 Customer Rating
Carburetor Reducer 7.0MM AL2, Blue
$20.05
Assembly Screw: 55AX Assembly Screw: 55AX
5 out of 5 Customer Rating
Assembly Screw: 55AX
$9.85
Connecting Rod O.S. Speed R21 Connecting Rod O.S. Speed R21
4.1 out of 5 Customer Rating
Connecting Rod O.S. Speed R21
$59.99
Motor Mount: 46, 55AX Motor Mount: 46, 55AX
3.3 out of 5 Customer Rating
Motor Mount: 46, 55AX
$34.86
Rocker Cover: Sirius 7 Rocker Cover: Sirius 7
4.7 out of 5 Customer Rating
Rocker Cover: Sirius 7
$14.77
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