O.S. Engines

Quality and performance has made O.S. the standard in RC engines for over 80 years.
Filter
Less than $50
1238
Up to $100
270
Up to $250
241
Up to $500
36
$500 or more
26
97-192 of 1812 Results
Bearing Rear: 65AX
$22.16Cylinder Head: .35AX
$22.04Carburetor Body: #20H
$19.14Drive Washer: 91FX
$16.09Exhaust Seal O-Ring (2)
$13.78Head Gasket: 15CV
$6.49M2004SC 85mm Manifold
$65.28Cover Plate: R21
$22.04Cylinder & Piston: 21XZ-B
$165.99Dust Cap Set, 18mm (3)
$11.91Inner Head: 21XZ-R Speed
$57.96M1006SC Manifold
$71.60TR02 Tuned Silencer EFRA2165
$184.82Crankshaft: 21XZ-B Speed
$174.99Outer Head: Speed 21 V-Spec
$139.99Crankshaft: 21XZ-B Spec 2
$210.21Rear Bearing: 12
$21.17Crankcase: 19XZ-B Speed
$157.70Crankshaft: 12TG-P
$50.83Inner Head: T1201 Speed
$37.99Heat Sink Head: 30VG
$91.34Piston: 37SZ-H
$32.56Cover Plate: 55AX
$17.16Piston Ring: 32FH
$26.24Piston: GGT10
$52.58Crankcase: 21XZ-B
$124.99Crankcase: 21XZ-B Ver2
$124.95Slide Valve 21M
$32.56Outer Head O.S. Speed R2106
$124.99Carburetor Body: #9B
$54.64Crankcase: FT-160
$174.34Drive Washer: GGT10
$17.16Needle: 15LA
$9.85Needle 61H: GT15
$13.78Piston Pin: GGT10
$22.30Piston Ring: FT-120 240
$29.60Heat Sink Head: 37SZ-H
$50.72Cover Plate: 75AX
$17.16Crankshaft: FS81 Alpha
$73.87Drive Shaft: Sirius 7
$34.86