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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241-264 of 1,605 Results
Valve Collet: FS-91 Surpass Valve Collet: FS-91 Surpass
3.3 out of 5 Customer Rating
Valve Collet: FS-91 Surpass
$10.86
Venturi: 15FP S Venturi: 15FP S
4 out of 5 Customer Rating
Venturi: 15FP S
$9.85
Standoff 5x50.8mm 2" (4): GT55 Standoff 5x50.8mm 2" (4): GT55
5 out of 5 Customer Rating
Standoff 5x50.8mm 2" (4): GT55
$48.51
Fuel Inlet Nipple: 12-240 Fuel Inlet Nipple: 12-240
4.9 out of 5 Customer Rating
Fuel Inlet Nipple: 12-240
$6.49
Piston Ring: FS-91 FT-160 Piston Ring: FS-91 FT-160
4 out of 5 Customer Rating
Piston Ring: FS-91 FT-160
$26.24
Carburetor Screw: #4D4C2H Carburetor Screw: #4D4C2H
4.8 out of 5 Customer Rating
Carburetor Screw: #4D4C2H
$6.49
Piston Ring: 108FSR Piston Ring: 108FSR
4.1 out of 5 Customer Rating
Piston Ring: 108FSR
$29.60
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
Starting Shaft: 18TM Starting Shaft: 18TM
3.9 out of 5 Customer Rating
Starting Shaft: 18TM
$17.01
Cover Plate: 105HX-R Cover Plate: 105HX-R
5 out of 5 Customer Rating
Cover Plate: 105HX-R
$28.45
Connecting Rod: 18TM Connecting Rod: 18TM
4.8 out of 5 Customer Rating
Connecting Rod: 18TM
$48.51
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
Motor Mount: 46, 55AX Motor Mount: 46, 55AX
3.3 out of 5 Customer Rating
Motor Mount: 46, 55AX
$34.86
Speed Hex Driver Replacement Tip 1.5 Speed Hex Driver Replacement Tip 1.5
4.4 out of 5 Customer Rating
Speed Hex Driver Replacement Tip 1.5
$5.52 Price reduced from $18.39 to
Clearance Sale! ⓘ
Standoff 5x25.4mm 1" (4): GT55 Standoff 5x25.4mm 1" (4): GT55
4.3 out of 5 Customer Rating
Standoff 5x25.4mm 1" (4): GT55
$36.85
Woodruff Key: 61-91 Woodruff Key: 61-91
4.1 out of 5 Customer Rating
Woodruff Key: 61-91
$6.45
Crankcase: 46AXII Crankcase: 46AXII
3.7 out of 5 Customer Rating
Crankcase: 46AXII
$52.73
Crankshaft: 15CV-A Crankshaft: 15CV-A
4.7 out of 5 Customer Rating
Crankshaft: 15CV-A
$30.89
Cylinder Liner: FS-95V Cylinder Liner: FS-95V
4.1 out of 5 Customer Rating
Cylinder Liner: FS-95V
$45.01
Cylinder Liner: 200 Surpass Cylinder Liner: 200 Surpass
5 out of 5 Customer Rating
Cylinder Liner: 200 Surpass
$17.70 Price reduced from $59.03 to
Clearance Sale! ⓘ
Gasket Exhaust: GT55 Gasket Exhaust: GT55
5 out of 5 Customer Rating
Gasket Exhaust: GT55
$7.46
M11 Header Pipe Nut: FS070S and FS91S II M11 Header Pipe Nut: FS070S and FS91S II
3.7 out of 5 Customer Rating
M11 Header Pipe Nut: FS070S and FS91S II
$6.49
Silencer Body Gasket: 200 Surpass Silencer Body Gasket: 200 Surpass
3.3 out of 5 Customer Rating
Silencer Body Gasket: 200 Surpass
$2.24 Price reduced from $7.46 to
Clearance Sale! ⓘ
Needle Valve Holder Assembly #61B: 91HZ Needle Valve Holder Assembly #61B: 91HZ
5 out of 5 Customer Rating
Needle Valve Holder Assembly #61B: 91HZ
$11.80
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