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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913-960 of 1,758 Results
O.S. Carburetor 12F5(B) Speed: T1203 O.S. Carburetor 12F5(B) Speed: T1203
4.2 out of 5 Customer Rating
$125.13
Carburetor 22B2: 21XZ-B V2 Carburetor 22B2: 21XZ-B V2
5 out of 5 Customer Rating
$129.99
O.S. Carburetor 22D (B) Without Reducer B2103 O.S. Carburetor 22D (B) Without Reducer B2103
4 out of 5 Customer Rating
$48.85 Price reduced from $162.83 to
Clearance Sale!
Carburetor #20M: 37SZ-H Carburetor #20M: 37SZ-H
5 out of 5 Customer Rating
$35.01 Price reduced from $87.21 to
Clearance Sale!
Carburetor #60LH: 50SX-H Hyper Carburetor #60LH: 50SX-H Hyper
4.4 out of 5 Customer Rating
$97.88
Rear Bearing: Sirius 7 Rear Bearing: Sirius 7
3.4 out of 5 Customer Rating
$12.28 Price reduced from $40.94 to
Clearance Sale!
Carburetor Rotor: 56 FS Carburetor Rotor: 56 FS
4.4 out of 5 Customer Rating
$8.88 Price reduced from $29.60 to
Clearance Sale!
Crankcase: O.S. Speed B2104 Crankcase: O.S. Speed B2104
4.2 out of 5 Customer Rating
$176.99
Carb Reducer 5.5mm: #11H, #11HB, 12TZ Carb Reducer 5.5mm: #11H, #11HB, 12TZ
5 out of 5 Customer Rating
$11.80
Carburetor Reducer 6.5mm: Speed 21 V-SpecII Carburetor Reducer 6.5mm: Speed 21 V-SpecII
4.4 out of 5 Customer Rating
$20.05
Carburetor 61G: 91HZ-R Speed 3D 3C Carburetor 61G: 91HZ-R Speed 3D 3C
5 out of 5 Customer Rating
$303.60
Carburetor 61D: 65AX Carburetor 61D: 65AX
3.4 out of 5 Customer Rating
$97.71
Carburetor 40K: 46AXII Carburetor 40K: 46AXII
4.8 out of 5 Customer Rating
$97.72
Carburetor Rotor: 40L-R, 55HZ-R Carburetor Rotor: 40L-R, 55HZ-R
4.8 out of 5 Customer Rating
$39.91
Outer Head O.S. Speed T1204 Outer Head O.S. Speed T1204
3.8 out of 5 Customer Rating
$89.99
Carburetor 70R: FS155A-P Carburetor 70R: FS155A-P
5 out of 5 Customer Rating
$157.70
Carburetor: GT33 Carburetor: GT33
4.8 out of 5 Customer Rating
$105.03 Price reduced from $190.20 to
Clearance Sale!
M11 In-Cowl Exhaust Header Pipe Inverted 80D: FS72A M11 In-Cowl Exhaust Header Pipe Inverted 80D: FS72A
4.4 out of 5 Customer Rating
$36.85
M10 In-Cowl Exhaust Header Pipe Side 60D: FS56A M10 In-Cowl Exhaust Header Pipe Side 60D: FS56A
4 out of 5 Customer Rating
$42.23
Extension Adapter E-4011 Extension Adapter E-4011
5 out of 5 Customer Rating
$10.42 Price reduced from $34.76 to
Clearance Sale!
Muffler Extension: #744B Muffler Extension: #744B
4 out of 5 Customer Rating
$19.05
Muffler Extension 35mm: E-402 Muffler Extension 35mm: E-402
4.4 out of 5 Customer Rating
$22.26
Muffler Extension: #842 Muffler Extension: #842
3.4 out of 5 Customer Rating
$11.72
Carburetor Body: 22B2, 21XZ-B Ver2 Carburetor Body: 22B2, 21XZ-B Ver2
5 out of 5 Customer Rating
$23.99 Price reduced from $79.99 to
Clearance Sale!
Carburetor Body: 21J3 Carburetor Body: 21J3
4 out of 5 Customer Rating
$29.31 Price reduced from $97.70 to
Clearance Sale!
Carburetor WT: GF40 Carburetor WT: GF40
4 out of 5 Customer Rating
$190.20
RP8 Turbo Glow Plug, On-Road, Cold RP8 Turbo Glow Plug, On-Road, Cold
4.8 out of 5 Customer Rating
$15.99
Radial Mount Standoffs: Sirius 7 Radial Mount Standoffs: Sirius 7
3.4 out of 5 Customer Rating
$2.80 Price reduced from $9.44 to
Clearance Sale!
Cam Cover: GF40 Cam Cover: GF40
4.8 out of 5 Customer Rating
$5.76 Price reduced from $19.22 to
Clearance Sale!
Carburetor Rotor: #75AX Carburetor Rotor: #75AX
4 out of 5 Customer Rating
$11.34 Price reduced from $37.80 to
Clearance Sale!
Carburetor Body: 61D, 65AX Carburetor Body: 61D, 65AX
4 out of 5 Customer Rating
$48.41
Crankcase: GGT15 Crankcase: GGT15
5 out of 5 Customer Rating
$37.51 Price reduced from $125.03 to
Clearance Sale!
Crankshaft: FS81 Alpha Crankshaft: FS81 Alpha
5 out of 5 Customer Rating
$73.87
Cylinder Rebuild Kit: B21 Speed Adam Drake Cylinder Rebuild Kit: B21 Speed Adam Drake
3.6 out of 5 Customer Rating
$232.25
Cylinder Rebuild Kit: 21XZ-B Spec 2 Cylinder Rebuild Kit: 21XZ-B Spec 2
4 out of 5 Customer Rating
$254.73
Inner Head: 12XZ Speed Spec 3 Inner Head: 12XZ Speed Spec 3
5 out of 5 Customer Rating
$9.59 Price reduced from $31.99 to
Clearance Sale!
Screw Set 21-32 (10) Screw Set 21-32 (10)
3.6 out of 5 Customer Rating
$9.85
Screw Set(10): 160FX Screw Set(10): 160FX
5 out of 5 Customer Rating
$17.16
Cover Fitting Screw (4) FL-70 Cover Fitting Screw (4) FL-70
5 out of 5 Customer Rating
$4.99
O-Ring Small #2K #2SB O-Ring Small #2K #2SB
4.4 out of 5 Customer Rating
$6.49
Cap Screw 5x25mm (10): GT55 Cap Screw 5x25mm (10): GT55
5 out of 5 Customer Rating
$13.78
Piston Pin: 91RZ-H Ring Heli Piston Pin: 91RZ-H Ring Heli
5 out of 5 Customer Rating
$11.99
Piston: FS72 Alpha Piston: FS72 Alpha
5 out of 5 Customer Rating
$12.63 Price reduced from $42.11 to
Clearance Sale!
Piston: FS-40 Surpass Piston: FS-40 Surpass
5 out of 5 Customer Rating
$25.29
Piston: GT33 Piston: GT33
3.2 out of 5 Customer Rating
$68.27
Piston: GT60 Piston: GT60
4.8 out of 5 Customer Rating
$45.74 Price reduced from $152.45 to
Clearance Sale!
Piston: GGT10 Piston: GGT10
5 out of 5 Customer Rating
$52.58
Piston Pin: FS-95V Piston Pin: FS-95V
5 out of 5 Customer Rating
$11.95