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
  • (1225)
  • (257)
  • (220)
  • (32)
  • (20)
  • (1)
  • (31)
  • (4)
  • (142)
  • (44)
  • (15)
  • (2)
  • (1)
  • (1)
  • (30)
  • (22)
  • (3)
  • (1)
  • (3)
  • (2)
  • (1)
649-672 of 1,755 Results
Connecting Rod: FS81 Alpha Connecting Rod: FS81 Alpha
3.9 out of 5 Customer Rating
Connecting Rod: FS81 Alpha
$27.29
Connecting Rod: GGT10 Connecting Rod: GGT10
4.9 out of 5 Customer Rating
Connecting Rod: GGT10
$48.47
Header Pipe Spring Header Pipe Spring
3.7 out of 5 Customer Rating
Header Pipe Spring
$11.80
Carburetor Retainer: 12TZ Spec II Carburetor Retainer: 12TZ Spec II
3.7 out of 5 Customer Rating
Carburetor Retainer: 12TZ Spec II
$13.78
Cover Plate: 25XZ Cover Plate: 25XZ
5 out of 5 Customer Rating
Cover Plate: 25XZ
$21.28
Crankshaft: T1201 Speed Crankshaft: T1201 Speed
5 out of 5 Customer Rating
Crankshaft: T1201 Speed
$39.27 Price reduced from $130.92 to
Clearance Sale! ⓘ
Outer Head: Speed 21XZ-B Spec III Outer Head: Speed 21XZ-B Spec III
5 out of 5 Customer Rating
Outer Head: Speed 21XZ-B Spec III
$102.52
Carburetor Rotor: 61G, 91HZ-R, Speed 3D Carburetor Rotor: 61G, 91HZ-R, Speed 3D
5 out of 5 Customer Rating
Carburetor Rotor: 61G, 91HZ-R, Speed 3D
$52.52
Cylinder & Piston: 21XZ-B Speed Spec III Cylinder & Piston: 21XZ-B Speed Spec III
3.3 out of 5 Customer Rating
Cylinder & Piston: 21XZ-B Speed Spec III
$176.56
Piston Pin: 28XZ Piston Pin: 28XZ
3.3 out of 5 Customer Rating
Piston Pin: 28XZ
$10.90
Cam Follower: 91-300 Cam Follower: 91-300
5 out of 5 Customer Rating
Cam Follower: 91-300
$22.04
Carburetor Body: #60F Carburetor Body: #60F
5 out of 5 Customer Rating
Carburetor Body: #60F
$37.80
Connecting Rod: 40-46 Connecting Rod: 40-46
3.6 out of 5 Customer Rating
Connecting Rod: 40-46
$22.04
Cylinder Liner: 70SZ-H Cylinder Liner: 70SZ-H
4 out of 5 Customer Rating
Cylinder Liner: 70SZ-H
$99.65
Gasket Set: 140RX Gasket Set: 140RX
4.4 out of 5 Customer Rating
Gasket Set: 140RX
$8.43
Intake Pipe AS-L: FT-120 and FT-160 Intake Pipe AS-L: FT-120 and FT-160
5 out of 5 Customer Rating
Intake Pipe AS-L: FT-120 and FT-160
$22.30
Silencer Body: 56 FS Silencer Body: 56 FS
3.6 out of 5 Customer Rating
Silencer Body: 56 FS
$44.22
Piston Pin: FS72 Alpha Piston Pin: FS72 Alpha
5 out of 5 Customer Rating
Piston Pin: FS72 Alpha
$10.86
Prop Spacer 120-300 Prop Spacer 120-300
5 out of 5 Customer Rating
Prop Spacer 120-300
$8.43
Rocker Cover: Support GF40 Rocker Cover: Support GF40
5 out of 5 Customer Rating
Rocker Cover: Support GF40
$12.63 Price reduced from $42.11 to
Clearance Sale! ⓘ
Throttle Lever Nut #2CK #2H Throttle Lever Nut #2CK #2H
4 out of 5 Customer Rating
Throttle Lever Nut #2CK #2H
$6.49
Carburetor 70R: FS155A-P Carburetor 70R: FS155A-P
5 out of 5 Customer Rating
Carburetor 70R: FS155A-P
$157.70
Plug Terminal: Sirius 7 Plug Terminal: Sirius 7
4.2 out of 5 Customer Rating
Plug Terminal: Sirius 7
$10.94
Carburetor Rotor: #60J Carburetor Rotor: #60J
4.4 out of 5 Customer Rating
Carburetor Rotor: #60J
$13.78
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