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)
1,057-1,080 of 1,808 Results
Cylinder Liner: F91, 160, 320 Cylinder Liner: F91, 160, 320
4.7 out of 5 Customer Rating
Cylinder Liner: F91, 160, 320
$45.01
Drive Hub: 200 Surpass Drive Hub: 200 Surpass
5 out of 5 Customer Rating
Drive Hub: 200 Surpass
$29.60
Gasket Intake Manifold: GF40 Gasket Intake Manifold: GF40
5 out of 5 Customer Rating
Gasket Intake Manifold: GF40
$10.94
Gasket Set: 32SX-H Gasket Set: 32SX-H
5 out of 5 Customer Rating
Gasket Set: 32SX-H
$7.46
Gasket Head, 0.1mm: 120AX Special Gasket Head, 0.1mm: 120AX Special
5 out of 5 Customer Rating
Gasket Head, 0.1mm: 120AX Special
$7.46
Thermo Insulator: GT15 Thermo Insulator: GT15
4.5 out of 5 Customer Rating
Thermo Insulator: GT15
$13.78
Head Gasket: GGT10 Head Gasket: GGT10
5 out of 5 Customer Rating
Head Gasket: GGT10
$11.87
Idle Needle: WLA-2 GT55 Idle Needle: WLA-2 GT55
5 out of 5 Customer Rating
Idle Needle: WLA-2 GT55
$15.76
Mixture Control Valve: 200 Surpass Mixture Control Valve: 200 Surpass
3.7 out of 5 Customer Rating
Mixture Control Valve: 200 Surpass
$17.16
Mixture Control Valve #61B: 91HZ Mixture Control Valve #61B: 91HZ
4.7 out of 5 Customer Rating
Mixture Control Valve #61B: 91HZ
$29.49
Needle A IFNVA Needle A IFNVA
3.1 out of 5 Customer Rating
Needle A IFNVA
$11.80
Needle Valve Assembly 61H: GT15 Needle Valve Assembly 61H: GT15
3.7 out of 5 Customer Rating
Needle Valve Assembly 61H: GT15
$22.04
Cover Assembly Metering WLA-2: GT55 Cover Assembly Metering WLA-2: GT55
4.5 out of 5 Customer Rating
Cover Assembly Metering WLA-2: GT55
$14.99
O-Ring Silencer #E3080: 35AX O-Ring Silencer #E3080: 35AX
4.1 out of 5 Customer Rating
O-Ring Silencer #E3080: 35AX
$10.94
Piston: 95AX Piston: 95AX
5 out of 5 Customer Rating
Piston: 95AX
$48.41
Piston: FS-120 Piston: FS-120
3.3 out of 5 Customer Rating
Piston: FS-120
$51.47
Piston: 61-300 Piston: 61-300
4.7 out of 5 Customer Rating
Piston: 61-300
$38.84
Piston Pin with Pads: FS30S Piston Pin with Pads: FS30S
3.9 out of 5 Customer Rating
Piston Pin with Pads: FS30S
$9.85
Piston Ring: FS155A-P Piston Ring: FS155A-P
5 out of 5 Customer Rating
Piston Ring: FS155A-P
$38.03
Piston Ring: GT60 Piston Ring: GT60
4.7 out of 5 Customer Rating
Piston Ring: GT60
$30.44
Rocker Cover,, Black: FSa-72II Rocker Cover,, Black: FSa-72II
4.1 out of 5 Customer Rating
Rocker Cover,, Black: FSa-72II
$25.51
Rotor Spring #9B Rotor Spring #9B
5 out of 5 Customer Rating
Rotor Spring #9B
$6.49
Cap Screw 4x20mm (10): GT55 Cap Screw 4x20mm (10): GT55
3.9 out of 5 Customer Rating
Cap Screw 4x20mm (10): GT55
$11.80
Thermo Insulator: GF30 Thermo Insulator: GF30
3.5 out of 5 Customer Rating
Thermo Insulator: GF30
$7.46
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