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
  • (1201)
  • (199)
  • (158)
  • (27)
  • (19)
  • (1)
  • (31)
  • (3)
  • (129)
  • (40)
  • (15)
  • (2)
  • (1)
  • (1)
  • (27)
  • (19)
  • (3)
  • (1)
  • (3)
  • (2)
  • (1)
1,489-1,512 of 1,605 Results
Muffler Fixing Screw E-4051: GT15HZ Muffler Fixing Screw E-4051: GT15HZ
5 out of 5 Customer Rating
Muffler Fixing Screw E-4051: GT15HZ
$11.80
Piston Ring: GT22 Piston Ring: GT22
3.3 out of 5 Customer Rating
Piston Ring: GT22
$25.44
Mixture Control Screw #11L Mixture Control Screw #11L
5 out of 5 Customer Rating
Mixture Control Screw #11L
$11.80
Woodruff Key: 108-300 Woodruff Key: 108-300
5 out of 5 Customer Rating
Woodruff Key: 108-300
$2.55 Price reduced from $8.49 to
Clearance Sale! ⓘ
Nipple #7: FS-52 Supass Nipple #7: FS-52 Supass
5 out of 5 Customer Rating
Nipple #7: FS-52 Supass
$6.49
O-Ring Small #2K #2SB O-Ring Small #2K #2SB
4.4 out of 5 Customer Rating
O-Ring Small #2K #2SB
$6.49
O-Ring P3-FKM 61H: GT15 O-Ring P3-FKM 61H: GT15
3.3 out of 5 Customer Rating
O-Ring P3-FKM 61H: GT15
$10.94
Drive Washer: GT55 Drive Washer: GT55
3.7 out of 5 Customer Rating
Drive Washer: GT55
$52.69
Radial Mount: 72FS-a Radial Mount: 72FS-a
4.8 out of 5 Customer Rating
Radial Mount: 72FS-a
$44.34
Valve Intake: FS-120 Surpass Valve Intake: FS-120 Surpass
3.9 out of 5 Customer Rating
Valve Intake: FS-120 Surpass
$37.80
Silencer: F-6010, 200 Surpass Silencer: F-6010, 200 Surpass
4 out of 5 Customer Rating
Silencer: F-6010, 200 Surpass
$87.15
Parallel Key: GT55 Parallel Key: GT55
3.3 out of 5 Customer Rating
Parallel Key: GT55
$7.46
Outer Head: R2101 Speed Outer Head: R2101 Speed
3.4 out of 5 Customer Rating
Outer Head: R2101 Speed
$102.35
Cover Plate: 12TG Cover Plate: 12TG
5 out of 5 Customer Rating
Cover Plate: 12TG
$11.80
Muffler Screws 10FP FSR (2) Muffler Screws 10FP FSR (2)
5 out of 5 Customer Rating
Muffler Screws 10FP FSR (2)
$6.49
Shaft Throttle WLA-2: GT55 Shaft Throttle WLA-2: GT55
5 out of 5 Customer Rating
Shaft Throttle WLA-2: GT55
$29.60
Head Gasket: 0.1, 0.15, T1201 Speed Head Gasket: 0.1, 0.15, T1201 Speed
3.6 out of 5 Customer Rating
Head Gasket: 0.1, 0.15, T1201 Speed
$9.55
Crankshaft: 18TM Crankshaft: 18TM
5 out of 5 Customer Rating
Crankshaft: 18TM
$55.14
Piston Ring: GT60 Piston Ring: GT60
4.7 out of 5 Customer Rating
Piston Ring: GT60
$30.44
Prop Washer: GT55 Prop Washer: GT55
4.8 out of 5 Customer Rating
Prop Washer: GT55
$9.85
Rear Bearing: 61-300 Rear Bearing: 61-300
4.5 out of 5 Customer Rating
Rear Bearing: 61-300
$22.16
Carburetor Reducer 8mm, Red: Speed 21 V-Spec Carburetor Reducer 8mm, Red: Speed 21 V-Spec
4 out of 5 Customer Rating
Carburetor Reducer 8mm, Red: Speed 21 V-Spec
$21.10
Nozzle Screw: FS-40 Nozzle Screw: FS-40
5 out of 5 Customer Rating
Nozzle Screw: FS-40
$6.49
Inner Head: 25XZ Inner Head: 25XZ
3.7 out of 5 Customer Rating
Inner Head: 25XZ
$57.99
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