O.S. Engines

Quality and performance has made O.S. the standard in RC engines for over 80 years.

Filter

Clear Filters

457-480 of 1,605 Results

Rocker Arm: FS-40-48S

$25.44

Standoff 5x12.7mm 1/2" (4): GT55

$29.49

Complete Carburetor Assembly: (61T2) O.S. FS-64V

$153.99

Valve Intake: FS-91 Surpass

$34.86

Valve Spring: 56 FS

$6.49

Bearing L-1050ZZ

$17.99

80 Degree Exhaust Header: 155FS-a

$48.43

Air Bleed Screw: #10G

$6.49

Carburetor Rotor: 37SZ-H

$7.87 ~~Price reduced from $26.24 to~~

Clearance Sale! ⓘ

102 Super Air Cleaner

$21.10

Carburetor Body: 21J2(B), 21XZ-B Speed

$89.99

Crankcase: Speed R2101

$141.93

Crankcase: 21XZ-B Speed Spec II

$157.70

O.S. Cylinder and Piston Assy Speed B2103 Type R

$193.68

Drive Washer: 12CV

$6.49

Head Gasket Set: 12TZ Spec II

$7.46

O.S. Metering Needle (21M) R21GT

$17.01

O-Ring Metal Valve: 120Surpass

$6.49

202 Elements (4)

$13.78

Carburetor 12F2-B: 12XZ Speed Spec 3

$118.99

7.0mm Carb Reducer (Red): AL2 O.S.SPEED R21GT2

$21.99

Carburetor Body: 22C(B), Speed B2102

$26.16 ~~Price reduced from $87.19 to~~

Clearance Sale! ⓘ

O.S. Carburetor Body 22D (B) Speed B2103 Type S

$87.19

Carburetor Rotor: #2A

$3.50 ~~Price reduced from $11.72 to~~

Clearance Sale! ⓘ