O.S. Engines

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Quality and performance has made O.S. the standard in RC engines for over 80 years.
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525-548 of 1,605 Results
Rotor Stop #4B #4D #4C Rotor Stop #4B #4D #4C
4.4 out of 5 Customer Rating
$9.85
Standoff 5x31.8mm 1-1/4" (4): GT55 Standoff 5x31.8mm 1-1/4" (4): GT55
5 out of 5 Customer Rating
$40.12
Screw Set 21-32 (10) Screw Set 21-32 (10)
3.6 out of 5 Customer Rating
$9.85
Ball WLA-2: GT55 Ball WLA-2: GT55
5 out of 5 Customer Rating
$6.99
Valve: FS-40 48Surpass Valve: FS-40 48Surpass
3.6 out of 5 Customer Rating
$21.10
Bearing R-1240ZZ Bearing R-1240ZZ
4.8 out of 5 Customer Rating
$16.99
Prop Shaft Set: OMA-28 Series Prop Shaft Set: OMA-28 Series
3.6 out of 5 Customer Rating
$6.29 Price reduced from $20.99 to
Clearance Sale!
Long Socket Wrench With Plug Grip Long Socket Wrench With Plug Grip
3.8 out of 5 Customer Rating
$19.16
Needle Valve Assembly #11H #11HB Needle Valve Assembly #11H #11HB
3.6 out of 5 Customer Rating
$27.29
Crankcase: O.S. Max .12 TG Version 4 Crankcase: O.S. Max .12 TG Version 4
3.8 out of 5 Customer Rating
$54.76
Carburetor 21J3-1: 21XR-B Version II Carburetor 21J3-1: 21XR-B Version II
5 out of 5 Customer Rating
$162.87
Carburetor Reducer AL2 5.5mm, Red: Speed T1202 Carburetor Reducer AL2 5.5mm, Red: Speed T1202
5 out of 5 Customer Rating
$21.10
Crankshaft: O.S.SPEED R21GT2 Crankshaft: O.S.SPEED R21GT2
3.8 out of 5 Customer Rating
$249.99
O.S. Carburetor Body 22E (B) Speed B2103 Type R O.S. Carburetor Body 22E (B) Speed B2103 Type R
5 out of 5 Customer Rating
$26.16 Price reduced from $87.19 to
Clearance Sale!
Connecting Rod: 18TM Connecting Rod: 18TM
4.8 out of 5 Customer Rating
$48.51
Outer Head: 21XZ-R Outer Head: 21XZ-R
4.8 out of 5 Customer Rating
$69.99
LC3 T-Maxx Revo Glow Plug Hot LC3 T-Maxx Revo Glow Plug Hot
4.2 out of 5 Customer Rating
$11.99
Cylinder Rebuild Kit: B21 Speed Adam Drake Cylinder Rebuild Kit: B21 Speed Adam Drake
3.6 out of 5 Customer Rating
$232.25
Cylinder & Piston B2101 Speed Cylinder & Piston B2101 Speed
5 out of 5 Customer Rating
$193.68
Remote Needle Bracket: 160FX Remote Needle Bracket: 160FX
3.3 out of 5 Customer Rating
$7.46
Cam Cover: FS155A-P Cam Cover: FS155A-P
5 out of 5 Customer Rating
$3.57 Price reduced from $11.91 to
Clearance Sale!
Carburetor Body: 40K, 46AXII Carburetor Body: 40K, 46AXII
4.5 out of 5 Customer Rating
$48.41
Cam Follower: 200 Surpass Cam Follower: 200 Surpass
3.3 out of 5 Customer Rating
$22.26
Carburetor Rotor: 61H, GT15 Carburetor Rotor: 61H, GT15
4.1 out of 5 Customer Rating
$7.87 Price reduced from $26.24 to
Clearance Sale!