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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313-336 of 1,605 Results
Piston Pin: 19XZ-B Speed Piston Pin: 19XZ-B Speed
3.6 out of 5 Customer Rating
Piston Pin: 19XZ-B Speed
$8.61
Carburetor Insert: 80T, Sirius 7 Carburetor Insert: 80T, Sirius 7
3.3 out of 5 Customer Rating
Carburetor Insert: 80T, Sirius 7
$4.15 Price reduced from $13.83 to
Clearance Sale! ⓘ
Cap Screw 5x25mm (10): GT55 Cap Screw 5x25mm (10): GT55
5 out of 5 Customer Rating
Cap Screw 5x25mm (10): GT55
$13.78
Joint Spring T-2040 Joint Spring T-2040
4.1 out of 5 Customer Rating
Joint Spring T-2040
$13.78
Head Gasket: 15CV Head Gasket: 15CV
4.8 out of 5 Customer Rating
Head Gasket: 15CV
$6.49
Connecting Rod: 32SX-H Connecting Rod: 32SX-H
4.4 out of 5 Customer Rating
Connecting Rod: 32SX-H
$21.10
Carburetor 61D: 65AX Carburetor 61D: 65AX
3.4 out of 5 Customer Rating
Carburetor 61D: 65AX
$97.71
Crankcase: O.S. Speed B2104 Crankcase: O.S. Speed B2104
4.2 out of 5 Customer Rating
Crankcase: O.S. Speed B2104
$176.99
Woodruff Key: 120-240 Woodruff Key: 120-240
4.4 out of 5 Customer Rating
Woodruff Key: 120-240
$6.45
Bearing R-1560X2ZZ Bearing R-1560X2ZZ
4 out of 5 Customer Rating
Bearing R-1560X2ZZ
$17.99
Cover Plate: GF30 II Cover Plate: GF30 II
4.2 out of 5 Customer Rating
Cover Plate: GF30 II
$44.17
Valve Spring Retainer: 90-300 Valve Spring Retainer: 90-300
5 out of 5 Customer Rating
Valve Spring Retainer: 90-300
$6.49
Intake Manifold: 56 FS Intake Manifold: 56 FS
4.1 out of 5 Customer Rating
Intake Manifold: 56 FS
$19.14
Throttle Stop Screw 18TM Throttle Stop Screw 18TM
5 out of 5 Customer Rating
Throttle Stop Screw 18TM
$10.58
Crankcase: FS155A-P Crankcase: FS155A-P
4.5 out of 5 Customer Rating
Crankcase: FS155A-P
$174.52
Stator Assembly: 5010-810 Stator Assembly: 5010-810
5 out of 5 Customer Rating
Stator Assembly: 5010-810
$67.99
Water Nipple: #2 Water Nipple: #2
5 out of 5 Customer Rating
Water Nipple: #2
$6.49
Screw Metering WLA-2: GT55 Screw Metering WLA-2: GT55
4 out of 5 Customer Rating
Screw Metering WLA-2: GT55
$5.99
Carburetor Retaining Screws: 2.6x18mm (10) Carburetor Retaining Screws: 2.6x18mm (10)
4.4 out of 5 Customer Rating
Carburetor Retaining Screws: 2.6x18mm (10)
$9.85
Carburetor Body: #10H Carburetor Body: #10H
4.5 out of 5 Customer Rating
Carburetor Body: #10H
$13.99
Pushrod Cover O-Ring: 56 FS Pushrod Cover O-Ring: 56 FS
4.8 out of 5 Customer Rating
Pushrod Cover O-Ring: 56 FS
$6.49
Carburetor Complete 21M4(B) W/O Reducer Carburetor Complete 21M4(B) W/O Reducer
4.8 out of 5 Customer Rating
Carburetor Complete 21M4(B) W/O Reducer
$176.99
Crankshaft: 15LA Crankshaft: 15LA
5 out of 5 Customer Rating
Crankshaft: 15LA
$23.22
Header Pipe Spring Header Pipe Spring
3.7 out of 5 Customer Rating
Header Pipe Spring
$11.80
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