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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261-284 of 1,605 Results
Standoff 5x50.8mm 2" (4):   GT55 Standoff 5x50.8mm 2" (4):   GT55
5 out of 5 Customer Rating
$48.51
Cover Plate: 105HX-R Cover Plate: 105HX-R
5 out of 5 Customer Rating
$28.45
O.S. Carburetor Body 22E (B) Speed B2103 Type R O.S. Carburetor Body 22E (B) Speed B2103 Type R
5 out of 5 Customer Rating
$26.16 Price reduced from $87.19 to
Clearance Sale!
O-Ring Needle: FS/FX/LA O-Ring Needle: FS/FX/LA
3.9 out of 5 Customer Rating
$8.49
Motor Mount: 46, 55AX Motor Mount: 46, 55AX
3.3 out of 5 Customer Rating
$34.86
Intake Manifold Assembly: FS-91 Surpass II Intake Manifold Assembly: FS-91 Surpass II
5 out of 5 Customer Rating
$29.49
Needle Valve Holder Assembly: 91SZ-H Hyper Needle Valve Holder Assembly: 91SZ-H Hyper
3.7 out of 5 Customer Rating
$19.05
Pushrod Cover Set: Sirius 7 Pushrod Cover Set: Sirius 7
5 out of 5 Customer Rating
$8.87 Price reduced from $29.55 to
Clearance Sale!
Piston: 70SZ-H Piston: 70SZ-H
4.1 out of 5 Customer Rating
$48.51
Piston Pin; FS-62V Piston Pin; FS-62V
4.7 out of 5 Customer Rating
$3.57 Price reduced from $11.91 to
Clearance Sale!
Piston Ring: FS30S Piston Ring: FS30S
3.9 out of 5 Customer Rating
$7.87 Price reduced from $26.24 to
Clearance Sale!
Piston Ring: FS-70 SII Piston Ring: FS-70 SII
4.7 out of 5 Customer Rating
$29.49
Cover Plate Screws (10): 120AX Cover Plate Screws (10): 120AX
3.9 out of 5 Customer Rating
$9.85
Standoff 5x25.4mm 1" (4): GT55 Standoff 5x25.4mm 1" (4): GT55
4.3 out of 5 Customer Rating
$36.85
Woodruff Key: 61-91 Woodruff Key: 61-91
4.1 out of 5 Customer Rating
$6.45
Crankcase: 46AXII Crankcase: 46AXII
3.7 out of 5 Customer Rating
$52.73
Crankshaft: 15CV-A Crankshaft: 15CV-A
4.7 out of 5 Customer Rating
$30.89
Cylinder Liner: FS-95V Cylinder Liner: FS-95V
4.1 out of 5 Customer Rating
$45.01
Cylinder Liner: 200 Surpass Cylinder Liner: 200 Surpass
5 out of 5 Customer Rating
$17.70 Price reduced from $59.03 to
Clearance Sale!
Gasket Exhaust: GT55 Gasket Exhaust: GT55
5 out of 5 Customer Rating
$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
$6.49
Silencer Body Gasket: 200 Surpass Silencer Body Gasket: 200 Surpass
3.3 out of 5 Customer Rating
$2.24 Price reduced from $7.46 to
Clearance Sale!
Muffler Mounting Screws #873 (2) Muffler Mounting Screws #873 (2)
3.3 out of 5 Customer Rating
$6.49
Needle Valve Holder Assembly #61B: 91HZ Needle Valve Holder Assembly #61B: 91HZ
5 out of 5 Customer Rating
$11.80