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)
1,688-1,711 of 1,808 Results
Locknut Set: FS-91 Surpass Locknut Set: FS-91 Surpass
5 out of 5 Customer Rating
Locknut Set: FS-91 Surpass
$24.23
Mixture Control Screw #9B Mixture Control Screw #9B
4 out of 5 Customer Rating
Mixture Control Screw #9B
$13.83
Silencer Assembly Screws: #F-6010 FS-200S Silencer Assembly Screws: #F-6010 FS-200S
4.8 out of 5 Customer Rating
Silencer Assembly Screws: #F-6010 FS-200S
$9.85
Needle #7G #7D #7H Needle #7G #7D #7H
4 out of 5 Customer Rating
Needle #7G #7D #7H
$13.78
Screw Metering WLA-2: GT55 Screw Metering WLA-2: GT55
4 out of 5 Customer Rating
Screw Metering WLA-2: GT55
$5.99
O-Ring Large: 120-300 O-Ring Large: 120-300
3.6 out of 5 Customer Rating
O-Ring Large: 120-300
$6.49
O-Ring S3-FKM 61H: GT15 O-Ring S3-FKM 61H: GT15
5 out of 5 Customer Rating
O-Ring S3-FKM 61H: GT15
$10.94
O-Ring 1.2x54mm: GT55 O-Ring 1.2x54mm: GT55
3.6 out of 5 Customer Rating
O-Ring 1.2x54mm: GT55
$7.46
Piston Pin Retainer: 50SX-H Piston Pin Retainer: 50SX-H
4.4 out of 5 Customer Rating
Piston Pin Retainer: 50SX-H
$7.46
Piston: FS110A Piston: FS110A
4.4 out of 5 Customer Rating
Piston: FS110A
$48.51
Piston: GT15 Piston: GT15
4 out of 5 Customer Rating
Piston: GT15
$57.78
Piston Pin: 200 Surpass Piston Pin: 200 Surpass
4.4 out of 5 Customer Rating
Piston Pin: 200 Surpass
$19.22
Piston Ring: 91FX Piston Ring: 91FX
4.4 out of 5 Customer Rating
Piston Ring: 91FX
$26.24
Piston Ring: FT-300 Piston Ring: FT-300
5 out of 5 Customer Rating
Piston Ring: FT-300
$31.52
Prop Washer: 61-90 Prop Washer: 61-90
4 out of 5 Customer Rating
Prop Washer: 61-90
$6.49
Ratchet Spring #2A #3A21 Ratchet Spring #2A #3A21
3.6 out of 5 Customer Rating
Ratchet Spring #2A #3A21
$4.99
Rocker Arm Support Assembly: 120 Surpass Rocker Arm Support Assembly: 120 Surpass
4.8 out of 5 Customer Rating
Rocker Arm Support Assembly: 120 Surpass
$34.86
Screw Set (10): 61RX SX Screw Set (10): 61RX SX
5 out of 5 Customer Rating
Screw Set (10): 61RX SX
$13.78
Screw Set (34): FT-120 (34) Screw Set (34): FT-120 (34)
5 out of 5 Customer Rating
Screw Set (34): FT-120 (34)
$25.44
Standoff 5x38.1mm 1-1/2" (4): GT55 Standoff 5x38.1mm 1-1/2" (4): GT55
3.6 out of 5 Customer Rating
Standoff 5x38.1mm 1-1/2" (4): GT55
$42.11
Thrust Washer: FT-120 160 Thrust Washer: FT-120 160
5 out of 5 Customer Rating
Thrust Washer: FT-120 160
$6.49
Thrust Washer: BGX-3500 Thrust Washer: BGX-3500
4.8 out of 5 Customer Rating
Thrust Washer: BGX-3500
$6.49
Valve In Ex: 90-320 Valve In Ex: 90-320
3.6 out of 5 Customer Rating
Valve In Ex: 90-320
$36.85
Bearing R-1560X2ZZ Bearing R-1560X2ZZ
4 out of 5 Customer Rating
Bearing R-1560X2ZZ
$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