O.S. Engines

O.S. Engines Category Image
Quality and performance has made O.S. the standard in RC engines for over 80 years.
Filter
Filter
Clear Filters
  • (1237)
  • (270)
  • (236)
  • (36)
  • (28)
  • (31)
  • (4)
  • (140)
  • (49)
  • (15)
  • (2)
  • (1)
  • (40)
  • (27)
  • (7)
  • (1)
  • (3)
  • (2)
  • (1)
392-415 of 1,808 Results
Cylinder Liner: 105HZ Cylinder Liner: 105HZ
5 out of 5 Customer Rating
Cylinder Liner: 105HZ
$105.05
Drive Washer: GT22 Drive Washer: GT22
4 out of 5 Customer Rating
Drive Washer: GT22
$39.91
Head Gasket FS155A-P Head Gasket FS155A-P
4.4 out of 5 Customer Rating
Head Gasket FS155A-P
$6.49
Carburetor Gasket: GT15HZ Carburetor Gasket: GT15HZ
3.4 out of 5 Customer Rating
Carburetor Gasket: GT15HZ
$10.94
Thermo Insulator: GF40 Thermo Insulator: GF40
3.6 out of 5 Customer Rating
Thermo Insulator: GF40
$30.44
Electronic Ignition Module: GT55 Electronic Ignition Module: GT55
4.8 out of 5 Customer Rating
Electronic Ignition Module: GT55
$303.45
Intake Manifold Assembly: FS-120III Intake Manifold Assembly: FS-120III
5 out of 5 Customer Rating
Intake Manifold Assembly: FS-120III
$34.86
Mixture Control Valve: #60K Mixture Control Valve: #60K
5 out of 5 Customer Rating
Mixture Control Valve: #60K
$25.99
Muffler Assembly F-5050: FS-95V Muffler Assembly F-5050: FS-95V
4.4 out of 5 Customer Rating
Muffler Assembly F-5050: FS-95V
$63.04
Needle Assembly #40N Needle Assembly #40N
4 out of 5 Customer Rating
Needle Assembly #40N
$22.04
Piston Pin: FS-95V Piston Pin: FS-95V
5 out of 5 Customer Rating
Piston Pin: FS-95V
$11.95
Piston Pin: 61-300 Piston Pin: 61-300
4.4 out of 5 Customer Rating
Piston Pin: 61-300
$10.86
Piston Ring: FS-91-P Piston Ring: FS-91-P
5 out of 5 Customer Rating
Piston Ring: FS-91-P
$29.49
Prop Nut 10453 10-12 Prop Nut 10453 10-12
4.4 out of 5 Customer Rating
Prop Nut 10453 10-12
$6.49
Pushrod: GF40 Pushrod: GF40
5 out of 5 Customer Rating
Pushrod: GF40
$29.68
Reed Valve Assembly: GT60 Reed Valve Assembly: GT60
5 out of 5 Customer Rating
Reed Valve Assembly: GT60
$25.19
Rocker Cover: 56 FS Rocker Cover: 56 FS
3.6 out of 5 Customer Rating
Rocker Cover: 56 FS
$17.16
Rocker Arm Assembly: F61-300 Rocker Arm Assembly: F61-300
4 out of 5 Customer Rating
Rocker Arm Assembly: F61-300
$29.49
Rotor Stop Screw #4D Rotor Stop Screw #4D
4.4 out of 5 Customer Rating
Rotor Stop Screw #4D
$6.49
Thrust Washer: 120Surpass Thrust Washer: 120Surpass
4 out of 5 Customer Rating
Thrust Washer: 120Surpass
$6.49
Needle Metering 21M: 21XZ-R VII Needle Metering 21M: 21XZ-R VII
5 out of 5 Customer Rating
Needle Metering 21M: 21XZ-R VII
$17.99
Nozzle Assembly #2BK Nozzle Assembly #2BK
3.4 out of 5 Customer Rating
Nozzle Assembly #2BK
$8.39
Crankshaft O.S. Speed T1204 Crankshaft O.S. Speed T1204
4.6 out of 5 Customer Rating
Crankshaft O.S. Speed T1204
$126.49
O.S. Carburetor 22E (B) Without Reducer Type R O.S. Carburetor 22E (B) Without Reducer Type R
4.2 out of 5 Customer Rating
O.S. Carburetor 22E (B) Without Reducer Type R
$162.83
Clear All

HORIZON HOBBY, WHERE RC MEMORIES LIVE.

Who We Are.

At Horizon Hobby, our personal goal is to inspire dreams and build memories. We take pride in providing the best hobby store experience for our customers, whether that’s online, at RC events, or in the RC community with RC cars, RC planes, RC boats, and so much more.

Our Values.

Our purpose is simple: deliver WOW moments. By pursuing the best experience through our portfolio of RC cars, helicopters, airplanes, boats, and more, we bring the RC community together in every city, town, and country. We are radio control innovators and Driven is our middle name.

Our Promise.

Our promise to our customers is creating one-of-a-kind experiences that keeps you coming back for more. We are more than an online hobby store. Our RC cars and trucks, RC airplanes and helicopters, and other radio control products are with you at home, on the go, and with your friends. We bring the fun.

Our policies are top notch:
Same Day Shipping
Free Shipping Over $99
Expert Product Support
Easy Returns
Sign up for Horizon Hobby Text Alerts!

Never miss out - text HOBBY to 44721Learn More

Shop
Support
Company Info
Legal
Copyright © Horizon Hobby, LLC