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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1,278-1,325 of 1,758 Results
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
Reduction Gear Bearing: FR5 Reduction Gear Bearing: FR5
4 out of 5 Customer Rating
Reduction Gear Bearing: FR5
$8.90 Price reduced from $29.68 to
Clearance Sale! ⓘ
Screw Fixing 4x40mm WLA-2 (1): GT55 Screw Fixing 4x40mm WLA-2 (1): GT55
5 out of 5 Customer Rating
Screw Fixing 4x40mm WLA-2 (1): GT55
$6.49
Throttle Link WLA-2: GT55 Throttle Link WLA-2: GT55
4.8 out of 5 Customer Rating
Throttle Link WLA-2: GT55
$10.99
Stator Assembly: 3820-1200 .25 Stator Assembly: 3820-1200 .25
4.4 out of 5 Customer Rating
Stator Assembly: 3820-1200 .25
$13.79 Price reduced from $45.99 to
Clearance Sale! ⓘ
Carburetor #20M: 37SZ-H Carburetor #20M: 37SZ-H
5 out of 5 Customer Rating
Carburetor #20M: 37SZ-H
$35.01 Price reduced from $87.21 to
Clearance Sale! ⓘ
Carburetor 61D: 65AX Carburetor 61D: 65AX
3.4 out of 5 Customer Rating
Carburetor 61D: 65AX
$97.71
Muffler Extension: #842 Muffler Extension: #842
3.4 out of 5 Customer Rating
Muffler Extension: #842
$11.72
Motor Mount: 65LA, 61-91FX, 75AX Motor Mount: 65LA, 61-91FX, 75AX
4 out of 5 Customer Rating
Motor Mount: 65LA, 61-91FX, 75AX
$40.12
Piston Ring: 70SZ-H Piston Ring: 70SZ-H
5 out of 5 Customer Rating
Piston Ring: 70SZ-H
$26.24
Radial Mount Standoffs: Sirius 7 Radial Mount Standoffs: Sirius 7
3.4 out of 5 Customer Rating
Radial Mount Standoffs: Sirius 7
$2.80 Price reduced from $9.44 to
Clearance Sale! ⓘ
Powerboost Pipe: GT15HZ Powerboost Pipe: GT15HZ
5 out of 5 Customer Rating
Powerboost Pipe: GT15HZ
$281.62
Carburetor Body: 70T, GF30 Carburetor Body: 70T, GF30
5 out of 5 Customer Rating
Carburetor Body: 70T, GF30
$97.90
Carburetor Rotor: #60M Carburetor Rotor: #60M
4.8 out of 5 Customer Rating
Carburetor Rotor: #60M
$10.49 Price reduced from $34.99 to
Clearance Sale! ⓘ
70T Carburetor: GF30 Gasoline Engine 70T Carburetor: GF30 Gasoline Engine
3.6 out of 5 Customer Rating
70T Carburetor: GF30 Gasoline Engine
$174.34
Carburetor Screw: #4D4C2H Carburetor Screw: #4D4C2H
4.8 out of 5 Customer Rating
Carburetor Screw: #4D4C2H
$6.49
Connecting Rod: 12Z CV Connecting Rod: 12Z CV
5 out of 5 Customer Rating
Connecting Rod: 12Z CV
$17.01
Pushrod Cover O-Ring: 56 FS Pushrod Cover O-Ring: 56 FS
4.8 out of 5 Customer Rating
Pushrod Cover O-Ring: 56 FS
$6.49
Cover Plate: 55AX Cover Plate: 55AX
3.4 out of 5 Customer Rating
Cover Plate: 55AX
$17.16
Cover Plate: 120AX Cover Plate: 120AX
4 out of 5 Customer Rating
Cover Plate: 120AX
$17.16
Crankcase: FS110A Crankcase: FS110A
5 out of 5 Customer Rating
Crankcase: FS110A
$119.86
Cylinder & Piston Assembly: 75AX Cylinder & Piston Assembly: 75AX
4.4 out of 5 Customer Rating
Cylinder & Piston Assembly: 75AX
$138.19
Cylinder Head: FS72 Alpha Cylinder Head: FS72 Alpha
4.2 out of 5 Customer Rating
Cylinder Head: FS72 Alpha
$76.70
Cylinder Liner: GT33 Cylinder Liner: GT33
3.6 out of 5 Customer Rating
Cylinder Liner: GT33
$23.48 Price reduced from $78.25 to
Clearance Sale! ⓘ
Drive Shaft Bearing: Sirius 7 Drive Shaft Bearing: Sirius 7
5 out of 5 Customer Rating
Drive Shaft Bearing: Sirius 7
$7.30 Price reduced from $24.36 to
Clearance Sale! ⓘ
Drive Washer: 46AXII Drive Washer: 46AXII
3.6 out of 5 Customer Rating
Drive Washer: 46AXII
$13.83
Drive Washer: FS72 Alpha Drive Washer: FS72 Alpha
4 out of 5 Customer Rating
Drive Washer: FS72 Alpha
$19.05
Link Pin E-Ring: Sirius 7 Link Pin E-Ring: Sirius 7
4.4 out of 5 Customer Rating
Link Pin E-Ring: Sirius 7
$6.49
Locknut Set: BGX 3500 Locknut Set: BGX 3500
3.2 out of 5 Customer Rating
Locknut Set: BGX 3500
$26.24
Needle Valve Assembly: 91SZ-H Hyper Needle Valve Assembly: 91SZ-H Hyper
5 out of 5 Customer Rating
Needle Valve Assembly: 91SZ-H Hyper
$29.60
O-Ring Small #2K #2SB O-Ring Small #2K #2SB
4.4 out of 5 Customer Rating
O-Ring Small #2K #2SB
$6.49
Piston: GGT10 Piston: GGT10
5 out of 5 Customer Rating
Piston: GGT10
$52.58
Valve Collet: FS-120 Surpass Valve Collet: FS-120 Surpass
5 out of 5 Customer Rating
Valve Collet: FS-120 Surpass
$10.86
Venturi: 15FP S Venturi: 15FP S
4 out of 5 Customer Rating
Venturi: 15FP S
$9.85
Venturi: 55HZ, 105HZ Venturi: 55HZ, 105HZ
4 out of 5 Customer Rating
Venturi: 55HZ, 105HZ
$22.04
Front Bearing: 40-240 Front Bearing: 40-240
4.2 out of 5 Customer Rating
Front Bearing: 40-240
$21.17
Carburetor Body: 80T, Sirius 7 Carburetor Body: 80T, Sirius 7
4.2 out of 5 Customer Rating
Carburetor Body: 80T, Sirius 7
$58.00
Carburetor Rotor: #60L, 91SX-H Carburetor Rotor: #60L, 91SX-H
4 out of 5 Customer Rating
Carburetor Rotor: #60L, 91SX-H
$29.49
Carburetor: #60RA, FS81A Carburetor: #60RA, FS81A
4.8 out of 5 Customer Rating
Carburetor: #60RA, FS81A
$102.96
Crankcase: 32SX-H Crankcase: 32SX-H
4.8 out of 5 Customer Rating
Crankcase: 32SX-H
$48.41
Thermo Insulator: 21B, 40E, 70C Carb Thermo Insulator: 21B, 40E, 70C Carb
5 out of 5 Customer Rating
Thermo Insulator: 21B, 40E, 70C Carb
$17.99
Link Rod: FR5 Link Rod: FR5
3.6 out of 5 Customer Rating
Link Rod: FR5
$9.81 Price reduced from $27.56 to
Clearance Sale! ⓘ
Mixture Control Vavle Assembly 70T: GF30 Mixture Control Vavle Assembly 70T: GF30
5 out of 5 Customer Rating
Mixture Control Vavle Assembly 70T: GF30
$27.29
Nipple #7: FS-52 Supass Nipple #7: FS-52 Supass
5 out of 5 Customer Rating
Nipple #7: FS-52 Supass
$6.49
Needle #40N Needle #40N
5 out of 5 Customer Rating
Needle #40N
$13.78
Needle Assembly #7H #7F Needle Assembly #7H #7F
4.4 out of 5 Customer Rating
Needle Assembly #7H #7F
$22.04
Standoff 5x19.1mm 3/4" (4): GT55 Standoff 5x19.1mm 3/4" (4): GT55
3.2 out of 5 Customer Rating
Standoff 5x19.1mm 3/4" (4): GT55
$31.50
Venturi #61N: FS72A Venturi #61N: FS72A
4.4 out of 5 Customer Rating
Venturi #61N: FS72A
$5.74 Price reduced from $19.14 to
Clearance Sale! ⓘ
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