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)
577-600 of 1,755 Results
Crankcase: 32SX-H Crankcase: 32SX-H
4.8 out of 5 Customer Rating
Crankcase: 32SX-H
$48.41
Head Gasket: 65LA Head Gasket: 65LA
4 out of 5 Customer Rating
Head Gasket: 65LA
$6.49
Link Rod: FR5 Link Rod: FR5
3.6 out of 5 Customer Rating
Link Rod: FR5
$27.56
Mixture Control Vavle Assembly 70T: GF30 Mixture Control Vavle Assembly 70T: GF30
5 out of 5 Customer Rating
Mixture Control Vavle Assembly 70T: GF30
$27.29
Muffler Assembly Screw #E-2030 Muffler Assembly Screw #E-2030
5 out of 5 Customer Rating
Muffler Assembly Screw #E-2030
$8.43
O-Ring Large: 120Surpass O-Ring Large: 120Surpass
5 out of 5 Customer Rating
O-Ring Large: 120Surpass
$6.49
Piston Pin: GT22 Piston Pin: GT22
3.6 out of 5 Customer Rating
Piston Pin: GT22
$5.74 Price reduced from $19.14 to
Clearance Sale! ⓘ
Piston Ring: FS110A Piston Ring: FS110A
5 out of 5 Customer Rating
Piston Ring: FS110A
$29.49
Cover Plate: GF30 II Cover Plate: GF30 II
4.2 out of 5 Customer Rating
Cover Plate: GF30 II
$44.17
Air Bleed Screw: FS-20, FS-40 Air Bleed Screw: FS-20, FS-40
3.4 out of 5 Customer Rating
Air Bleed Screw: FS-20, FS-40
$6.49
Front Bearing: 12-300 Front Bearing: 12-300
5 out of 5 Customer Rating
Front Bearing: 12-300
$21.17
Rear Bearing: 50SX-H, 55HZ, 55AX Rear Bearing: 50SX-H, 55HZ, 55AX
5 out of 5 Customer Rating
Rear Bearing: 50SX-H, 55HZ, 55AX
$34.76
Rear Bearing: GT60 Rear Bearing: GT60
3.8 out of 5 Customer Rating
Rear Bearing: GT60
$25.44
Carburetor Body: 61D, 65AX Carburetor Body: 61D, 65AX
4 out of 5 Customer Rating
Carburetor Body: 61D, 65AX
$48.41
Crankshaft: 37SZ-H Crankshaft: 37SZ-H
5 out of 5 Customer Rating
Crankshaft: 37SZ-H
$50.76
Crankshaft: 10LA Crankshaft: 10LA
4 out of 5 Customer Rating
Crankshaft: 10LA
$20.99
Drive Washer: GT22 Drive Washer: GT22
4 out of 5 Customer Rating
Drive Washer: GT22
$39.91
Intake Manifold Assembly: FS-120III Intake Manifold Assembly: FS-120III
5 out of 5 Customer Rating
Intake Manifold Assembly: FS-120III
$34.86
Mixture Control Valve: #60K Mixture Control Valve: #60K
5 out of 5 Customer Rating
Mixture Control Valve: #60K
$7.79 Price reduced from $25.99 to
Clearance Sale! ⓘ
Piston Pin: 61-300 Piston Pin: 61-300
4.4 out of 5 Customer Rating
Piston Pin: 61-300
$10.86
Needle Valve Assembly #10J #10M Needle Valve Assembly #10J #10M
4.4 out of 5 Customer Rating
Needle Valve Assembly #10J #10M
$26.24
Mixture Control Valve 21M Mixture Control Valve 21M
5 out of 5 Customer Rating
Mixture Control Valve 21M
$19.05
Speed Ball Driver Replacement Tip 2.5 Speed Ball Driver Replacement Tip 2.5
3.6 out of 5 Customer Rating
Speed Ball Driver Replacement Tip 2.5
$18.53
Carburetor 21J4 (B) B21 Adam Drake II without Reducer Carburetor 21J4 (B) B21 Adam Drake II without Reducer
4 out of 5 Customer Rating
Carburetor 21J4 (B) B21 Adam Drake II without Reducer
$119.76
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