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)
553-576 of 1,755 Results
Crankcase Heat Sink: 91HZ Crankcase Heat Sink: 91HZ
3.7 out of 5 Customer Rating
Crankcase Heat Sink: 91HZ
$29.60
Crankcase: GF40 Crankcase: GF40
4.1 out of 5 Customer Rating
Crankcase: GF40
$135.64
Cylinder Head: GF40 Cylinder Head: GF40
3.7 out of 5 Customer Rating
Cylinder Head: GF40
$163.01
Cylinder Head: GGT15 Cylinder Head: GGT15
4.1 out of 5 Customer Rating
Cylinder Head: GGT15
$52.69
Drive Washer: GT55 Drive Washer: GT55
3.7 out of 5 Customer Rating
Drive Washer: GT55
$52.69
Front Plate: Sirius 7 Front Plate: Sirius 7
5 out of 5 Customer Rating
Front Plate: Sirius 7
$346.53
Cylinder Head Gasket, .2mm: 91HZ Cylinder Head Gasket, .2mm: 91HZ
3.7 out of 5 Customer Rating
Cylinder Head Gasket, .2mm: 91HZ
$7.46
Needle Assembly 80T: Sirius 7 Needle Assembly 80T: Sirius 7
5 out of 5 Customer Rating
Needle Assembly 80T: Sirius 7
$11.80
O-Ring Small: 120Surpass O-Ring Small: 120Surpass
3.9 out of 5 Customer Rating
O-Ring Small: 120Surpass
$6.49
Pushrod Cover: FT-120-240 Pushrod Cover: FT-120-240
3.7 out of 5 Customer Rating
Pushrod Cover: FT-120-240
$9.44
Pushrod Cover: GF40 Pushrod Cover: GF40
4.7 out of 5 Customer Rating
Pushrod Cover: GF40
$14.84
Piston Pin Retainer P: 40-46 Piston Pin Retainer P: 40-46
3.9 out of 5 Customer Rating
Piston Pin Retainer P: 40-46
$6.49
Sensor Fixing Screw: GT33 Sensor Fixing Screw: GT33
5 out of 5 Customer Rating
Sensor Fixing Screw: GT33
$7.46
Screw Set (8): 15LA Screw Set (8): 15LA
3.9 out of 5 Customer Rating
Screw Set (8): 15LA
$8.46
Lever Outer WLA-2: GT55 Lever Outer WLA-2: GT55
4.5 out of 5 Customer Rating
Lever Outer WLA-2: GT55
$13.80
Throttle Lever: #20C Throttle Lever: #20C
5 out of 5 Customer Rating
Throttle Lever: #20C
$7.49
Thrust Washer: 21-32 Thrust Washer: 21-32
3.3 out of 5 Customer Rating
Thrust Washer: 21-32
$6.49
Pump Body Assembly: WLA-2 GT55 Pump Body Assembly: WLA-2 GT55
4.2 out of 5 Customer Rating
Pump Body Assembly: WLA-2 GT55
$32.99
Radial Mount: Sirius 7 Radial Mount: Sirius 7
5 out of 5 Customer Rating
Radial Mount: Sirius 7
$135.66
Camshaft: FS-91-P Camshaft: FS-91-P
4.8 out of 5 Customer Rating
Camshaft: FS-91-P
$60.72
Carburetor Body: #70C Carburetor Body: #70C
4 out of 5 Customer Rating
Carburetor Body: #70C
$87.39
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: #60RA, FS81A Carburetor: #60RA, FS81A
4.8 out of 5 Customer Rating
Carburetor: #60RA, FS81A
$102.96
Crankcase: 95AX Crankcase: 95AX
4.4 out of 5 Customer Rating
Crankcase: 95AX
$125.04
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