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)
  • (241)
  • (36)
  • (27)
  • (1)
  • (31)
  • (4)
  • (147)
  • (49)
  • (15)
  • (2)
  • (1)
  • (1)
  • (36)
  • (25)
  • (5)
  • (1)
  • (3)
  • (2)
  • (1)
553-576 of 1,812 Results
Cam Cover: FS81 Alpha Cam Cover: FS81 Alpha
5 out of 5 Customer Rating
Cam Cover: FS81 Alpha
$10.82
Carburetor Body: #9B Carburetor Body: #9B
5 out of 5 Customer Rating
Carburetor Body: #9B
$54.64
Choke Arm Assembly: WLA-2, GT55 Choke Arm Assembly: WLA-2, GT55
5 out of 5 Customer Rating
Choke Arm Assembly: WLA-2, GT55
$7.46
Back Plate: 40-46 LA Back Plate: 40-46 LA
5 out of 5 Customer Rating
Back Plate: 40-46 LA
$11.80
Crankcase: FT-160 Crankcase: FT-160
5 out of 5 Customer Rating
Crankcase: FT-160
$174.34
Crankshaft: 55HZ Hyper Crankshaft: 55HZ Hyper
4.4 out of 5 Customer Rating
Crankshaft: 55HZ Hyper
$66.24
Crankshaft: FS120SEIII, FS120SE Crankshaft: FS120SEIII, FS120SE
4.8 out of 5 Customer Rating
Crankshaft: FS120SEIII, FS120SE
$102.52
Crank Pin Stop Screw: Sirius 7 Crank Pin Stop Screw: Sirius 7
4.4 out of 5 Customer Rating
Crank Pin Stop Screw: Sirius 7
$22.24
Cylinder & Piston: 35AX Cylinder & Piston: 35AX
5 out of 5 Customer Rating
Cylinder & Piston: 35AX
$99.51
Cylinder Head: FS110A Cylinder Head: FS110A
3.4 out of 5 Customer Rating
Cylinder Head: FS110A
$87.19
Drive Washer: FS155A-P Drive Washer: FS155A-P
4 out of 5 Customer Rating
Drive Washer: FS155A-P
$28.45
Drive Washer: GGT10 Drive Washer: GGT10
4.4 out of 5 Customer Rating
Drive Washer: GGT10
$17.16
Drive Washer: GT15 Drive Washer: GT15
4.8 out of 5 Customer Rating
Drive Washer: GT15
$39.91
Exhaust Pipe Nut: FS-120 Surpass Exhaust Pipe Nut: FS-120 Surpass
5 out of 5 Customer Rating
Exhaust Pipe Nut: FS-120 Surpass
$6.49
Cylinder Head Gasket: 35AX Cylinder Head Gasket: 35AX
3.6 out of 5 Customer Rating
Cylinder Head Gasket: 35AX
$6.49
Head Gasket: FS-95V Head Gasket: FS-95V
5 out of 5 Customer Rating
Head Gasket: FS-95V
$6.49
Gasket Head: GF40 Gasket Head: GF40
5 out of 5 Customer Rating
Gasket Head: GF40
$14.84
Mixture Control Valve 61H: GT15 Mixture Control Valve 61H: GT15
4.4 out of 5 Customer Rating
Mixture Control Valve 61H: GT15
$26.24
Muffler Screws 20-46 (2) Muffler Screws 20-46 (2)
3.2 out of 5 Customer Rating
Muffler Screws 20-46 (2)
$6.49
Needle: 15LA Needle: 15LA
3.4 out of 5 Customer Rating
Needle: 15LA
$9.85
Needle 61H: GT15 Needle 61H: GT15
5 out of 5 Customer Rating
Needle 61H: GT15
$13.78
Needle: #60B Needle: #60B
5 out of 5 Customer Rating
Needle: #60B
$14.73
Pushrod Cover: 120 Surpass Pushrod Cover: 120 Surpass
5 out of 5 Customer Rating
Pushrod Cover: 120 Surpass
$10.90
Piston Pin: GGT10 Piston Pin: GGT10
4.4 out of 5 Customer Rating
Piston Pin: GGT10
$22.30
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