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)
1,177-1,200 of 1,755 Results
Crankcase: Sirius 7 Crankcase: Sirius 7
5 out of 5 Customer Rating
Crankcase: Sirius 7
$432.78
Cylinder Head: 46AXII Cylinder Head: 46AXII
4.5 out of 5 Customer Rating
Cylinder Head: 46AXII
$25.19
Exhaust Pipe: 40-300 Exhaust Pipe: 40-300
5 out of 5 Customer Rating
Exhaust Pipe: 40-300
$11.84
Head Gasket: GT33 Head Gasket: GT33
3.3 out of 5 Customer Rating
Head Gasket: GT33
$14.84
Intake Manifold Assembly: FT-240/300 Intake Manifold Assembly: FT-240/300
5 out of 5 Customer Rating
Intake Manifold Assembly: FT-240/300
$54.99
Locknut Set 3/8M5S Locknut Set 3/8M5S
3.9 out of 5 Customer Rating
Locknut Set 3/8M5S
$26.24
Silencer F-5030: FS81 Alpha Silencer F-5030: FS81 Alpha
5 out of 5 Customer Rating
Silencer F-5030: FS81 Alpha
$57.78
90 Degree Muffler Extension: 120AX 90 Degree Muffler Extension: 120AX
4.3 out of 5 Customer Rating
90 Degree Muffler Extension: 120AX
$34.86
Muffler Screws 10FP FSR (2) Muffler Screws 10FP FSR (2)
5 out of 5 Customer Rating
Muffler Screws 10FP FSR (2)
$6.49
Pushrod Cover: FS-40 Surpass Pushrod Cover: FS-40 Surpass
4.5 out of 5 Customer Rating
Pushrod Cover: FS-40 Surpass
$6.99
PCV Valve Set: GF40 PCV Valve Set: GF40
5 out of 5 Customer Rating
PCV Valve Set: GF40
$14.84
Rocker Cover: Sirius 7 Rocker Cover: Sirius 7
4.7 out of 5 Customer Rating
Rocker Cover: Sirius 7
$14.77
Bearing R-1350ZZ Bearing R-1350ZZ
5 out of 5 Customer Rating
Bearing R-1350ZZ
$14.99
Main Shaft :3820-1200 .25 Main Shaft :3820-1200 .25
5 out of 5 Customer Rating
Main Shaft :3820-1200 .25
$8.99
Security Ring: OMA-38 Series Security Ring: OMA-38 Series
3.3 out of 5 Customer Rating
Security Ring: OMA-38 Series
$5.99
Carburetor Rotor: 61ER Carburetor Rotor: 61ER
4.1 out of 5 Customer Rating
Carburetor Rotor: 61ER
$13.79 Price reduced from $45.99 to
Clearance Sale! ⓘ
Carburetor Rotor: 61E New 91HZ Carburetor Rotor: 61E New 91HZ
4.7 out of 5 Customer Rating
Carburetor Rotor: 61E New 91HZ
$48.32
Cover Plate: 160FX Cover Plate: 160FX
4.5 out of 5 Customer Rating
Cover Plate: 160FX
$19.14
Ball Link #3 20K: 21VZ-R Ball Link #3 20K: 21VZ-R
5 out of 5 Customer Rating
Ball Link #3 20K: 21VZ-R
$17.16
O.S. Ball Link #6 22D Carb Speed B2103 Type S O.S. Ball Link #6 22D Carb Speed B2103 Type S
5 out of 5 Customer Rating
O.S. Ball Link #6 22D Carb Speed B2103 Type S
$17.16
Carb Reducer 7.5mm, Blue Carb Reducer 7.5mm, Blue
5 out of 5 Customer Rating
Carb Reducer 7.5mm, Blue
$20.99
Carburetor 12F4-B: Speed T1202 Carburetor 12F4-B: Speed T1202
3.1 out of 5 Customer Rating
Carburetor 12F4-B: Speed T1202
$125.13
18TM Revo Manifold 18TM Revo Manifold
4.1 out of 5 Customer Rating
18TM Revo Manifold
$52.77
RP6 Turbo Glow Plug Medium On-Road RP6 Turbo Glow Plug Medium On-Road
4.5 out of 5 Customer Rating
RP6 Turbo Glow Plug Medium On-Road
$14.99
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