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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817-840 of 1,605 Results
Cylinder Head: 95AX Cylinder Head: 95AX
3.4 out of 5 Customer Rating
Cylinder Head: 95AX
$48.41
Cylinder Head with Valves: FS120SE Cylinder Head with Valves: FS120SE
4.2 out of 5 Customer Rating
Cylinder Head with Valves: FS120SE
$185.03
Cylinder Head & Valve: FF-320 Cylinder Head & Valve: FF-320
5 out of 5 Customer Rating
Cylinder Head & Valve: FF-320
$135.66
Cylinder Liner: 91SZ-H Cylinder Liner: 91SZ-H
4.8 out of 5 Customer Rating
Cylinder Liner: 91SZ-H
$99.65
Super Can Filter, Small Super Can Filter, Small
4.4 out of 5 Customer Rating
Super Can Filter, Small
$11.80
Under Cover Gasket: IL-300 Dia-Star Under Cover Gasket: IL-300 Dia-Star
5 out of 5 Customer Rating
Under Cover Gasket: IL-300 Dia-Star
$8.49
Pulse Spacer: GGT10 Pulse Spacer: GGT10
5 out of 5 Customer Rating
Pulse Spacer: GGT10
$17.11
Intake Pipe Holder Assembly: FR5-300 Intake Pipe Holder Assembly: FR5-300
4 out of 5 Customer Rating
Intake Pipe Holder Assembly: FR5-300
$15.99
Muffler Body F-5050: FS-95V Muffler Body F-5050: FS-95V
5 out of 5 Customer Rating
Muffler Body F-5050: FS-95V
$52.73
Muffler E-5040: GT22 Muffler E-5040: GT22
5 out of 5 Customer Rating
Muffler E-5040: GT22
$91.51
Piston Ring: 40SF Piston Ring: 40SF
5 out of 5 Customer Rating
Piston Ring: 40SF
$26.24
Piston: GT33 Piston: GT33
3.2 out of 5 Customer Rating
Piston: GT33
$68.27
Prop Nut Safety: FT-120 II FT-160 Prop Nut Safety: FT-120 II FT-160
3.2 out of 5 Customer Rating
Prop Nut Safety: FT-120 II FT-160
$36.85
Rocker Arm Assembly FS-20 Rocker Arm Assembly FS-20
5 out of 5 Customer Rating
Rocker Arm Assembly FS-20
$22.04
Rotor Stop #4B #4D #4C Rotor Stop #4B #4D #4C
4.4 out of 5 Customer Rating
Rotor Stop #4B #4D #4C
$9.85
Screw Set 21-32 (10) Screw Set 21-32 (10)
3.6 out of 5 Customer Rating
Screw Set 21-32 (10)
$9.85
Standoff 5x31.8mm 1-1/4" (4): GT55 Standoff 5x31.8mm 1-1/4" (4): GT55
5 out of 5 Customer Rating
Standoff 5x31.8mm 1-1/4" (4): GT55
$40.12
Ball WLA-2: GT55 Ball WLA-2: GT55
5 out of 5 Customer Rating
Ball WLA-2: GT55
$6.99
Valve: FS-40 48Surpass Valve: FS-40 48Surpass
3.6 out of 5 Customer Rating
Valve: FS-40 48Surpass
$21.10
Bearing R-1240ZZ Bearing R-1240ZZ
4.8 out of 5 Customer Rating
Bearing R-1240ZZ
$16.99
Prop Shaft Set: OMA-28 Series Prop Shaft Set: OMA-28 Series
3.6 out of 5 Customer Rating
Prop Shaft Set: OMA-28 Series
$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
Long Socket Wrench With Plug Grip
$19.16
Needle Valve Assembly #11H #11HB Needle Valve Assembly #11H #11HB
3.6 out of 5 Customer Rating
Needle Valve Assembly #11H #11HB
$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
Crankcase: O.S. Max .12 TG Version 4
$54.76
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