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)
  • (37)
  • (27)
  • (31)
  • (4)
  • (140)
  • (49)
  • (15)
  • (2)
  • (1)
  • (40)
  • (27)
  • (7)
  • (1)
  • (3)
  • (2)
  • (1)
1,441-1,464 of 1,808 Results
Carburetor Body: 61T, FS-62V Carburetor Body: 61T, FS-62V
4.1 out of 5 Customer Rating
Carburetor Body: 61T, FS-62V
$38.95
Speed Hex Wrench Ball Driver 2.0mm Speed Hex Wrench Ball Driver 2.0mm
3.3 out of 5 Customer Rating
Speed Hex Wrench Ball Driver 2.0mm
$36.84
55HZ-H Hyper Ringed .55 Helicopter Engine 55HZ-H Hyper Ringed .55 Helicopter Engine
3.3 out of 5 Customer Rating
55HZ-H Hyper Ringed .55 Helicopter Engine
$418.63
Built-Up Parts Set (C&P) O.S. Speed T1204 Built-Up Parts Set (C&P) O.S. Speed T1204
5 out of 5 Customer Rating
Built-Up Parts Set (C&P) O.S. Speed T1204
$171.28
Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4 Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4
4.9 out of 5 Customer Rating
Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4
$111.36
Carburetor Reducer 6.5mm, Red: B2101 Speed Carburetor Reducer 6.5mm, Red: B2101 Speed
3.7 out of 5 Customer Rating
Carburetor Reducer 6.5mm, Red: B2101 Speed
$21.10
Carburetor Reducer 7mm, Red: Speed 21 V-Spec Carburetor Reducer 7mm, Red: Speed 21 V-Spec
5 out of 5 Customer Rating
Carburetor Reducer 7mm, Red: Speed 21 V-Spec
$21.10
T-1070SC L52 Pipe T-1070SC L52 Pipe
5 out of 5 Customer Rating
T-1070SC L52 Pipe
$135.44
TR02 Tuned Silencer Set EFRA2165 TR02 Tuned Silencer Set EFRA2165
4.7 out of 5 Customer Rating
TR02 Tuned Silencer Set EFRA2165
$227.84
Inner Head: O.S.SPEED R21GT2 Inner Head: O.S.SPEED R21GT2
4.9 out of 5 Customer Rating
Inner Head: O.S.SPEED R21GT2
$57.99
Cover Plate: 12TG Cover Plate: 12TG
5 out of 5 Customer Rating
Cover Plate: 12TG
$11.80
Cover Plate: 105HX-R Cover Plate: 105HX-R
5 out of 5 Customer Rating
Cover Plate: 105HX-R
$28.45
Crankcase: 21XZ-R VII Crankcase: 21XZ-R VII
3.1 out of 5 Customer Rating
Crankcase: 21XZ-R VII
$152.36
O.S. Cylinder Piston Rod Set Speed B2103 Type R O.S. Cylinder Piston Rod Set Speed B2103 Type R
5 out of 5 Customer Rating
O.S. Cylinder Piston Rod Set Speed B2103 Type R
$242.95
Cylinder & Piston Assembly: 12XZ Cylinder & Piston Assembly: 12XZ
3.3 out of 5 Customer Rating
Cylinder & Piston Assembly: 12XZ
$99.51
Cylinder & Piston: 21XZ-B Speed Cylinder & Piston: 21XZ-B Speed
5 out of 5 Customer Rating
Cylinder & Piston: 21XZ-B Speed
$193.68
Inner Cylinder Head: 12XZ Inner Cylinder Head: 12XZ
4.1 out of 5 Customer Rating
Inner Cylinder Head: 12XZ
$32.56
Needle Valve Assembly #12FB: 12XZ Speed Needle Valve Assembly #12FB: 12XZ Speed
3.3 out of 5 Customer Rating
Needle Valve Assembly #12FB: 12XZ Speed
$27.29
Piston Pin Retainer: RX RZ XM Piston Pin Retainer: RX RZ XM
4.7 out of 5 Customer Rating
Piston Pin Retainer: RX RZ XM
$6.49
Slide Valve #21JS Slide Valve #21JS
3.9 out of 5 Customer Rating
Slide Valve #21JS
$32.56
Crankshaft: O.S. Speed B2104 Crankshaft: O.S. Speed B2104
5 out of 5 Customer Rating
Crankshaft: O.S. Speed B2104
$198.10
Connecting Rod: R2102, Speed 21XZ-GT Connecting Rod: R2102, Speed 21XZ-GT
3.3 out of 5 Customer Rating
Connecting Rod: R2102, Speed 21XZ-GT
$52.58
Connecting Rod: 21VZ-R Connecting Rod: 21VZ-R
5 out of 5 Customer Rating
Connecting Rod: 21VZ-R
$48.41
O.S. Cover Plate Speed: T1203 O.S. Cover Plate Speed: T1203
5 out of 5 Customer Rating
O.S. Cover Plate Speed: T1203
$17.99
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