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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385-408 of 1,755 Results
Piston Ring: FS-62V Piston Ring: FS-62V
4.7 out of 5 Customer Rating
Piston Ring: FS-62V
$10.42 Price reduced from $34.76 to
Clearance Sale! ⓘ
Thrust Washer Rear 30Wankel Thrust Washer Rear 30Wankel
5 out of 5 Customer Rating
Thrust Washer Rear 30Wankel
$6.49
Valve: FS-62V Valve: FS-62V
3.3 out of 5 Customer Rating
Valve: FS-62V
$21.17
Motor Mount: OMA-38 Series Motor Mount: OMA-38 Series
4.1 out of 5 Customer Rating
Motor Mount: OMA-38 Series
$15.99
Cover Plate: 37SZ-H Cover Plate: 37SZ-H
3.3 out of 5 Customer Rating
Cover Plate: 37SZ-H
$9.85
Cylinder Head: 105HZ Cylinder Head: 105HZ
5 out of 5 Customer Rating
Cylinder Head: 105HZ
$130.89
Cylinder Head: 91SX-H Cylinder Head: 91SX-H
3.1 out of 5 Customer Rating
Cylinder Head: 91SX-H
$99.99
Assembly Screw: 55AX Assembly Screw: 55AX
5 out of 5 Customer Rating
Assembly Screw: 55AX
$9.85
Back Plate Gasket O-Ring: FL70 Back Plate Gasket O-Ring: FL70
3.3 out of 5 Customer Rating
Back Plate Gasket O-Ring: FL70
$6.49
Piston: 120AX Piston: 120AX
3.9 out of 5 Customer Rating
Piston: 120AX
$57.78
Rocker Arm Support Assembly: FS-40-48S Rocker Arm Support Assembly: FS-40-48S
3.7 out of 5 Customer Rating
Rocker Arm Support Assembly: FS-40-48S
$11.72
Screw Set (8): 37SZ-H Screw Set (8): 37SZ-H
5 out of 5 Customer Rating
Screw Set (8): 37SZ-H
$9.85
Screw Set (12): FS-120 Surpass Screw Set (12): FS-120 Surpass
4.7 out of 5 Customer Rating
Screw Set (12): FS-120 Surpass
$17.08
Crankshaft Clamp: GT15, 105, 91 Heli Crankshaft Clamp: GT15, 105, 91 Heli
3.3 out of 5 Customer Rating
Crankshaft Clamp: GT15, 105, 91 Heli
$25.44
M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A
4.1 out of 5 Customer Rating
M10 In-Cowl Exhaust Header Pipe Inverted 80D: FS56A
$36.85
Booster Cable: Single Booster Cable: Single
5 out of 5 Customer Rating
Booster Cable: Single
$21.04
Spring Choke Friction: WLA-2, GT55 Spring Choke Friction: WLA-2, GT55
4.1 out of 5 Customer Rating
Spring Choke Friction: WLA-2, GT55
$5.99
Inner Head: B2102 Speed Inner Head: B2102 Speed
4.7 out of 5 Customer Rating
Inner Head: B2102 Speed
$52.69
Inner Head: O.S. Speed R2104 Inner Head: O.S. Speed R2104
5 out of 5 Customer Rating
Inner Head: O.S. Speed R2104
$76.71
Idle Adj Valve STP #6H7L8H Idle Adj Valve STP #6H7L8H
4.1 out of 5 Customer Rating
Idle Adj Valve STP #6H7L8H
$6.49
Needle Holder 21M: 21XZ-R Needle Holder 21M: 21XZ-R
5 out of 5 Customer Rating
Needle Holder 21M: 21XZ-R
$16.09
Metering Needle #11H #11HB Metering Needle #11H #11HB
4.7 out of 5 Customer Rating
Metering Needle #11H #11HB
$16.09
Meter Needle Assembly #12FB: 12XZ Speed Meter Needle Assembly #12FB: 12XZ Speed
5 out of 5 Customer Rating
Meter Needle Assembly #12FB: 12XZ Speed
$17.99
Piston Pin: 21XZ-R Piston Pin: 21XZ-R
4.1 out of 5 Customer Rating
Piston Pin: 21XZ-R
$9.85
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