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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1,753-1,776 of 1,808 Results
Cylinder/Piston/Rod: B2101 Speed Cylinder/Piston/Rod: B2101 Speed
3.2 out of 5 Customer Rating
Cylinder/Piston/Rod: B2101 Speed
$242.95
Inner Head: 21XZ-R Speed Inner Head: 21XZ-R Speed
3.6 out of 5 Customer Rating
Inner Head: 21XZ-R Speed
$57.96
Carburetor Reducer 8mm, Red: Speed 21 V-Spec Carburetor Reducer 8mm, Red: Speed 21 V-Spec
4 out of 5 Customer Rating
Carburetor Reducer 8mm, Red: Speed 21 V-Spec
$21.10
Carburetor Reducer 8mm, Blue Carburetor Reducer 8mm, Blue
4.2 out of 5 Customer Rating
Carburetor Reducer 8mm, Blue
$21.10
RP8 Turbo Glow Plug, On-Road, Cold RP8 Turbo Glow Plug, On-Road, Cold
4.8 out of 5 Customer Rating
RP8 Turbo Glow Plug, On-Road, Cold
$15.99
M1006SC Manifold M1006SC Manifold
3.6 out of 5 Customer Rating
M1006SC Manifold
$71.60
TR02 Tuned Silencer EFRA2165 TR02 Tuned Silencer EFRA2165
5 out of 5 Customer Rating
TR02 Tuned Silencer EFRA2165
$184.82
Rear Bearing: 12TR Rear Bearing: 12TR
5 out of 5 Customer Rating
Rear Bearing: 12TR
$61.99
Carburetor Retainer: 12CV Carburetor Retainer: 12CV
4.8 out of 5 Customer Rating
Carburetor Retainer: 12CV
$11.87
Crankshaft: 21XZ-R Crankshaft: 21XZ-R
4.2 out of 5 Customer Rating
Crankshaft: 21XZ-R
$144.99
Crankshaft: 21XZ-B Speed Crankshaft: 21XZ-B Speed
5 out of 5 Customer Rating
Crankshaft: 21XZ-B Speed
$174.99
S. Cylinder & Piston Assembly: 12XZ Speed Spec 3 S. Cylinder & Piston Assembly: 12XZ Speed Spec 3
5 out of 5 Customer Rating
S. Cylinder & Piston Assembly: 12XZ Speed Spec 3
$127.39
Cylinder & Piston Assembly: 21TM Cylinder & Piston Assembly: 21TM
5 out of 5 Customer Rating
Cylinder & Piston Assembly: 21TM
$122.17
Inner Head: 12XZ Speed Spec 3 Inner Head: 12XZ Speed Spec 3
5 out of 5 Customer Rating
Inner Head: 12XZ Speed Spec 3
$31.99
Outer Head: Speed 21 V-Spec Outer Head: Speed 21 V-Spec
3.4 out of 5 Customer Rating
Outer Head: Speed 21 V-Spec
$139.99
Head Gasket: 30VG Head Gasket: 30VG
4.4 out of 5 Customer Rating
Head Gasket: 30VG
$7.46
Mixture Control Valve #10A Mixture Control Valve #10A
3.6 out of 5 Customer Rating
Mixture Control Valve #10A
$13.67
Metering Needle Assembly: 30VG Metering Needle Assembly: 30VG
5 out of 5 Customer Rating
Metering Needle Assembly: 30VG
$19.14
O.S. Metering Needle Assembly 22D Speed B2103 O.S. Metering Needle Assembly 22D Speed B2103
3.4 out of 5 Customer Rating
O.S. Metering Needle Assembly 22D Speed B2103
$19.14
Metering Needle Assembly 22C(B): Speed B2102 Metering Needle Assembly 22C(B): Speed B2102
5 out of 5 Customer Rating
Metering Needle Assembly 22C(B): Speed B2102
$19.14
Crankshaft Clamp: 32-46 Crankshaft Clamp: 32-46
5 out of 5 Customer Rating
Crankshaft Clamp: 32-46
$25.44
Metering Needle Assembly 18TM Metering Needle Assembly 18TM
3.6 out of 5 Customer Rating
Metering Needle Assembly 18TM
$16.09
Piston: 55HZ Hyper Piston: 55HZ Hyper
3.6 out of 5 Customer Rating
Piston: 55HZ Hyper
$44.22
Pump Governor Cover 60N 70N Pump Governor Cover 60N 70N
3.1 out of 5 Customer Rating
Pump Governor Cover 60N 70N
$6.49
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