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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1,273-1,296 of 1,755 Results
Connecting Rod: Speed B2101, B2102 Connecting Rod: Speed B2101, B2102
4 out of 5 Customer Rating
$52.58
Crankcase: 21XZ-B Ver2 Crankcase: 21XZ-B Ver2
4.2 out of 5 Customer Rating
$124.95
Cylinder Piston Assembly: 21XZ-B Spec 2 Cylinder Piston Assembly: 21XZ-B Spec 2
4 out of 5 Customer Rating
$204.38
Inner Head: 21XZ-B Spec 2 Inner Head: 21XZ-B Spec 2
4.8 out of 5 Customer Rating
$57.96
Gasket Head Aluminum, .2mm: 19XZ-B Speed Gasket Head Aluminum, .2mm: 19XZ-B Speed
5 out of 5 Customer Rating
$5.31
Thermo Insulator, 11K: 18TM Thermo Insulator, 11K: 18TM
4 out of 5 Customer Rating
$19.14
Cover Plate Assembly: GGT10 Cover Plate Assembly: GGT10
5 out of 5 Customer Rating
$54.63
Cylinder Liner: FS155A-P Cylinder Liner: FS155A-P
5 out of 5 Customer Rating
$58.85
Cylinder Liner: 120AX Cylinder Liner: 120AX
4.1 out of 5 Customer Rating
$99.65
Rocker Cover Gasket: GF40 Rocker Cover Gasket: GF40
3.7 out of 5 Customer Rating
$10.94
Head Gasket: 56 FS Head Gasket: 56 FS
5 out of 5 Customer Rating
$6.49
Ignition Module IG-02: GT33 Ignition Module IG-02: GT33
5 out of 5 Customer Rating
$104.01
Cover Plate: 200 Surpass Cover Plate: 200 Surpass
5 out of 5 Customer Rating
$22.30
Nozzle: 15FP-S RN Nozzle: 15FP-S RN
5 out of 5 Customer Rating
$9.85
Pushrod Cover Assembly: 120Surpass Pushrod Cover Assembly: 120Surpass
4.7 out of 5 Customer Rating
$22.04
Piston: GF40 Piston: GF40
3.9 out of 5 Customer Rating
$68.27
Piston Pin: 160FX Piston Pin: 160FX
5 out of 5 Customer Rating
$19.14
Screw Set (10): 46AX 55AX Screw Set (10): 46AX 55AX
5 out of 5 Customer Rating
$10.86
Throttle Arm Assembly: 40L, 55HZ Hyper Throttle Arm Assembly: 40L, 55HZ Hyper
5 out of 5 Customer Rating
$7.46
Valve Spring: FS-70 91SII Valve Spring: FS-70 91SII
5 out of 5 Customer Rating
$6.49
M16 In-Cowl Exhaust Header Pipe Side 60D: FS20S M16 In-Cowl Exhaust Header Pipe Side 60D: FS20S
5 out of 5 Customer Rating
$14.55 Price reduced from $48.51 to
Clearance Sale!
Motor Mount: FS91SII, FS110 Pump Motor Mount: FS91SII, FS110 Pump
4.1 out of 5 Customer Rating
$44.22
Cam Cover: FS-62V Cam Cover: FS-62V
4.5 out of 5 Customer Rating
$11.91
Carburetor Body: 61C, 95AX Carburetor Body: 61C, 95AX
5 out of 5 Customer Rating
$48.51