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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1,681-1,704 of 1,808 Results
Crankshaft: GT60 Crankshaft: GT60
5 out of 5 Customer Rating
Crankshaft: GT60
$193.79
Cylinder Head: .35AX Cylinder Head: .35AX
5 out of 5 Customer Rating
Cylinder Head: .35AX
$22.04
Cylinder Head: 120AX Cylinder Head: 120AX
5 out of 5 Customer Rating
Cylinder Head: 120AX
$57.78
Cylinder Liner: GT22 Cylinder Liner: GT22
4.4 out of 5 Customer Rating
Cylinder Liner: GT22
$69.76
Silencer Gasket: F-5040, FS110A Silencer Gasket: F-5040, FS110A
5 out of 5 Customer Rating
Silencer Gasket: F-5040, FS110A
$6.49
Gasket Set: 55AX Gasket Set: 55AX
5 out of 5 Customer Rating
Gasket Set: 55AX
$11.80
Head Gasket: 25LA Head Gasket: 25LA
5 out of 5 Customer Rating
Head Gasket: 25LA
$6.49
Locknut Set: FS-91 Surpass Locknut Set: FS-91 Surpass
5 out of 5 Customer Rating
Locknut Set: FS-91 Surpass
$24.23
Mixture Control Screw #9B Mixture Control Screw #9B
4 out of 5 Customer Rating
Mixture Control Screw #9B
$13.83
Silencer Assembly Screws: #F-6010 FS-200S Silencer Assembly Screws: #F-6010 FS-200S
4.8 out of 5 Customer Rating
Silencer Assembly Screws: #F-6010 FS-200S
$9.85
Screw Metering WLA-2: GT55 Screw Metering WLA-2: GT55
4 out of 5 Customer Rating
Screw Metering WLA-2: GT55
$5.99
Needle #7G #7D #7H Needle #7G #7D #7H
4 out of 5 Customer Rating
Needle #7G #7D #7H
$13.78
O-Ring Large: 120-300 O-Ring Large: 120-300
3.6 out of 5 Customer Rating
O-Ring Large: 120-300
$6.49
O-Ring S3-FKM 61H: GT15 O-Ring S3-FKM 61H: GT15
5 out of 5 Customer Rating
O-Ring S3-FKM 61H: GT15
$10.94
O-Ring 1.2x54mm: GT55 O-Ring 1.2x54mm: GT55
3.6 out of 5 Customer Rating
O-Ring 1.2x54mm: GT55
$7.46
Piston Pin Retainer: 50SX-H Piston Pin Retainer: 50SX-H
4.4 out of 5 Customer Rating
Piston Pin Retainer: 50SX-H
$7.46
Piston: FS110A Piston: FS110A
4.4 out of 5 Customer Rating
Piston: FS110A
$48.51
Piston: GT15 Piston: GT15
4 out of 5 Customer Rating
Piston: GT15
$57.78
Piston Pin: 200 Surpass Piston Pin: 200 Surpass
4.4 out of 5 Customer Rating
Piston Pin: 200 Surpass
$19.22
Piston Ring: 91FX Piston Ring: 91FX
4.4 out of 5 Customer Rating
Piston Ring: 91FX
$26.24
Piston Ring: FT-300 Piston Ring: FT-300
5 out of 5 Customer Rating
Piston Ring: FT-300
$31.52
Prop Washer: 61-90 Prop Washer: 61-90
4 out of 5 Customer Rating
Prop Washer: 61-90
$6.49
Rocker Arm Support Assembly: 120 Surpass Rocker Arm Support Assembly: 120 Surpass
4.8 out of 5 Customer Rating
Rocker Arm Support Assembly: 120 Surpass
$34.86
Ratchet Spring #2A #3A21 Ratchet Spring #2A #3A21
3.6 out of 5 Customer Rating
Ratchet Spring #2A #3A21
$4.99
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