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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1,424-1,447 of 1,808 Results
Head Gasket: GGT10 Head Gasket: GGT10
5 out of 5 Customer Rating
Head Gasket: GGT10
$11.87
Idle Needle: WLA-2 GT55 Idle Needle: WLA-2 GT55
5 out of 5 Customer Rating
Idle Needle: WLA-2 GT55
$15.76
Mixture Control Valve: 200 Surpass Mixture Control Valve: 200 Surpass
3.7 out of 5 Customer Rating
Mixture Control Valve: 200 Surpass
$17.16
Mixture Control Valve #61B: 91HZ Mixture Control Valve #61B: 91HZ
4.7 out of 5 Customer Rating
Mixture Control Valve #61B: 91HZ
$29.49
Needle A IFNVA Needle A IFNVA
3.1 out of 5 Customer Rating
Needle A IFNVA
$11.80
Needle Valve Assembly 61H: GT15 Needle Valve Assembly 61H: GT15
3.7 out of 5 Customer Rating
Needle Valve Assembly 61H: GT15
$22.04
Cover Assembly Metering WLA-2: GT55 Cover Assembly Metering WLA-2: GT55
4.5 out of 5 Customer Rating
Cover Assembly Metering WLA-2: GT55
$14.99
O-Ring Silencer #E3080: 35AX O-Ring Silencer #E3080: 35AX
4.1 out of 5 Customer Rating
O-Ring Silencer #E3080: 35AX
$10.94
Piston: 95AX Piston: 95AX
5 out of 5 Customer Rating
Piston: 95AX
$48.41
Piston: FS-120 Piston: FS-120
3.3 out of 5 Customer Rating
Piston: FS-120
$51.47
Piston: 61-300 Piston: 61-300
4.7 out of 5 Customer Rating
Piston: 61-300
$38.84
Piston Pin with Pads: FS30S Piston Pin with Pads: FS30S
3.9 out of 5 Customer Rating
Piston Pin with Pads: FS30S
$9.85
Piston Ring: FS155A-P Piston Ring: FS155A-P
5 out of 5 Customer Rating
Piston Ring: FS155A-P
$38.03
Piston Ring: GT60 Piston Ring: GT60
4.7 out of 5 Customer Rating
Piston Ring: GT60
$30.44
Rocker Cover,, Black: FSa-72II Rocker Cover,, Black: FSa-72II
4.1 out of 5 Customer Rating
Rocker Cover,, Black: FSa-72II
$25.51
Rotor Spring #9B Rotor Spring #9B
5 out of 5 Customer Rating
Rotor Spring #9B
$6.49
Cap Screw 4x20mm (10): GT55 Cap Screw 4x20mm (10): GT55
3.9 out of 5 Customer Rating
Cap Screw 4x20mm (10): GT55
$11.80
Thermo Insulator: GF30 Thermo Insulator: GF30
3.5 out of 5 Customer Rating
Thermo Insulator: GF30
$7.46
Thrust Washer 10-15 Thrust Washer 10-15
4.5 out of 5 Customer Rating
Thrust Washer 10-15
$6.49
Thrust Washer: 20-40FP Thrust Washer: 20-40FP
5 out of 5 Customer Rating
Thrust Washer: 20-40FP
$6.49
Valve Exhaust: FS-52 Surpass Valve Exhaust: FS-52 Surpass
3.3 out of 5 Customer Rating
Valve Exhaust: FS-52 Surpass
$19.14
Valve Collet: FS-91 Surpass Valve Collet: FS-91 Surpass
3.3 out of 5 Customer Rating
Valve Collet: FS-91 Surpass
$10.86
Parallel Key: GT55 Parallel Key: GT55
3.3 out of 5 Customer Rating
Parallel Key: GT55
$7.46
Main Shaft: 3815-1000 Main Shaft: 3815-1000
4.3 out of 5 Customer Rating
Main Shaft: 3815-1000
$8.99
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