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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121-144 of 1,808 Results
Pushrod: 120-240 Pushrod: 120-240
5 out of 5 Customer Rating
Pushrod: 120-240
$9.44
Carburetor Dust Covers: #12FB, 12XZ Speed Carburetor Dust Covers: #12FB, 12XZ Speed
5 out of 5 Customer Rating
Carburetor Dust Covers: #12FB, 12XZ Speed
$7.46
Cylinder & Piston: B21 Speed Adam Drake Cylinder & Piston: B21 Speed Adam Drake
4.1 out of 5 Customer Rating
Cylinder & Piston: B21 Speed Adam Drake
$65.91 Price reduced from $188.33 to
Clearance Sale! ⓘ
Carburetor 21J3-B: Speed B21 Adam Drake Carburetor 21J3-B: Speed B21 Adam Drake
4 out of 5 Customer Rating
Carburetor 21J3-B: Speed B21 Adam Drake
$162.92
Valve Spring: FS-70 91SII Valve Spring: FS-70 91SII
5 out of 5 Customer Rating
Valve Spring: FS-70 91SII
$6.49
Crankcase: 65AX Crankcase: 65AX
5 out of 5 Customer Rating
Crankcase: 65AX
$114.52
Gasket Set: 50SX-H Gasket Set: 50SX-H
3.7 out of 5 Customer Rating
Gasket Set: 50SX-H
$8.43
Cylinder Head: FS-62V Cylinder Head: FS-62V
5 out of 5 Customer Rating
Cylinder Head: FS-62V
$76.88
Carburetor 61H: GT15 Carburetor 61H: GT15
3.7 out of 5 Customer Rating
Carburetor 61H: GT15
$147.01
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
FILTER OIL 20ML INS FILTER OIL 20ML INS
5 out of 5 Customer Rating
FILTER OIL 20ML INS
$15.99
Cover Plate: FS-62V Cover Plate: FS-62V
4.5 out of 5 Customer Rating
Cover Plate: FS-62V
$15.76
Super Can Filter, Small Super Can Filter, Small
4.4 out of 5 Customer Rating
Super Can Filter, Small
$11.80
Type F Glow Plug Medium: Four Stroke Type F Glow Plug Medium: Four Stroke
5 out of 5 Customer Rating
Type F Glow Plug Medium: Four Stroke
$13.99
Muffler Screws #744B Muffler Screws #744B
5 out of 5 Customer Rating
Muffler Screws #744B
$6.49
Rear Bearing: 50SX-H, 55HZ, 55AX Rear Bearing: 50SX-H, 55HZ, 55AX
5 out of 5 Customer Rating
Rear Bearing: 50SX-H, 55HZ, 55AX
$34.76
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
55HZ-R DRS Ringed .55 Helicopter Engine 55HZ-R DRS Ringed .55 Helicopter Engine
5 out of 5 Customer Rating
55HZ-R DRS Ringed .55 Helicopter Engine
$510.44
Connecting Rod: Speed B2101, B2102 Connecting Rod: Speed B2101, B2102
4 out of 5 Customer Rating
Connecting Rod: Speed B2101, B2102
$52.58
Cylinder Rebuild Kit: B21 Speed Adam Drake Cylinder Rebuild Kit: B21 Speed Adam Drake
3.6 out of 5 Customer Rating
Cylinder Rebuild Kit: B21 Speed Adam Drake
$232.25
Dust Cover: 30VG Dust Cover: 30VG
4.4 out of 5 Customer Rating
Dust Cover: 30VG
$11.91
Front Bearing: 40-240 Front Bearing: 40-240
4.2 out of 5 Customer Rating
Front Bearing: 40-240
$21.17
Muffler Extension Adapter E-3070: 873 Muffler Extension Adapter E-3070: 873
5 out of 5 Customer Rating
Muffler Extension Adapter E-3070: 873
$19.05
Exhaust Gasket: 55HZ Exhaust Gasket: 55HZ
3.7 out of 5 Customer Rating
Exhaust Gasket: 55HZ
$17.16
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