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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985-1,008 of 1,755 Results
Piston Ring: 120AX Piston Ring: 120AX
4.4 out of 5 Customer Rating
Piston Ring: 120AX
$33.61
Prop Washer: GT55 Prop Washer: GT55
4.8 out of 5 Customer Rating
Prop Washer: GT55
$9.85
Regulator Assembly: 91HZR Regulator Assembly: 91HZR
5 out of 5 Customer Rating
Regulator Assembly: 91HZR
$124.95
Set Screw #2D #4BK-#5B Set Screw #2D #4BK-#5B
3.6 out of 5 Customer Rating
Set Screw #2D #4BK-#5B
$6.49
Tappet Screw: F40-300 Tappet Screw: F40-300
4.6 out of 5 Customer Rating
Tappet Screw: F40-300
$9.99
Cylinder Head: O.S. FS-64V Cylinder Head: O.S. FS-64V
5 out of 5 Customer Rating
Cylinder Head: O.S. FS-64V
$76.99
Mixture Control Screw #10ER Mixture Control Screw #10ER
5 out of 5 Customer Rating
Mixture Control Screw #10ER
$9.85
T-2060 WN Tuned Pipe T-2060 WN Tuned Pipe
4.8 out of 5 Customer Rating
T-2060 WN Tuned Pipe
$142.48
Crankshaft: T1202 Speed Crankshaft: T1202 Speed
4.8 out of 5 Customer Rating
Crankshaft: T1202 Speed
$125.42
O.S. Crankshaft OS Speed R21GT O.S. Crankshaft OS Speed R21GT
4.8 out of 5 Customer Rating
O.S. Crankshaft OS Speed R21GT
$238.82
Outer Head: B21 Speed Adam Drake Outer Head: B21 Speed Adam Drake
4.4 out of 5 Customer Rating
Outer Head: B21 Speed Adam Drake
$108.03
Outer Head: 21XZ-R VII Outer Head: 21XZ-R VII
5 out of 5 Customer Rating
Outer Head: 21XZ-R VII
$27.39 Price reduced from $91.32 to
Clearance Sale! ⓘ
Inner Head: 21XZ-B Inner Head: 21XZ-B
3.4 out of 5 Customer Rating
Inner Head: 21XZ-B
$52.99
202 Super Air Cleaner 202 Super Air Cleaner
4 out of 5 Customer Rating
202 Super Air Cleaner
$22.26
Dust Cap Set, 16mm (3) Dust Cap Set, 16mm (3)
5 out of 5 Customer Rating
Dust Cap Set, 16mm (3)
$11.91
Motor Mount: 46, 55AX Motor Mount: 46, 55AX
3.3 out of 5 Customer Rating
Motor Mount: 46, 55AX
$34.86
Locknut Set: FS-120 Surpass Locknut Set: FS-120 Surpass
5 out of 5 Customer Rating
Locknut Set: FS-120 Surpass
$26.24
Silencer Set: F6040, GF40 Silencer Set: F6040, GF40
5 out of 5 Customer Rating
Silencer Set: F6040, GF40
$97.82
Silencer: F-4020, 56FS Silencer: F-4020, 56FS
5 out of 5 Customer Rating
Silencer: F-4020, 56FS
$48.51
Breather Nipple: 120-300 Breather Nipple: 120-300
5 out of 5 Customer Rating
Breather Nipple: 120-300
$6.49
Camshaft Gear: FR5-300 Camshaft Gear: FR5-300
3.7 out of 5 Customer Rating
Camshaft Gear: FR5-300
$44.13
Carburetor Body: 75AX Carburetor Body: 75AX
5 out of 5 Customer Rating
Carburetor Body: 75AX
$48.51
Carburetor Insert: 80T, Sirius 7 Carburetor Insert: 80T, Sirius 7
3.3 out of 5 Customer Rating
Carburetor Insert: 80T, Sirius 7
$13.83
Starting Shaft: 18TM Starting Shaft: 18TM
3.9 out of 5 Customer Rating
Starting Shaft: 18TM
$17.01
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