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FATHER'S DAY GIFT GUIDE

Find the perfect RC gift for Dad!

WE BOUGHT BIG, YOU SAVE BIGGER

Save Up To $75!

CLEARANCE SALE

Save Big While Supplies Last

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  3. OS Engines

O.S. Engines

O.S. Engines

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

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26

289-384 of 1812 Results

    90 Degree Muffler Extension Screws (2): 120AX

    90 Degree Muffler Extension Screws (2): 120AX

    $6.49
    Pushrod Cover: FS-62V

    Pushrod Cover: FS-62V

    $14.84
    Propeller Shaft Set: 3805 3810

    Propeller Shaft Set: 3805 3810

    $27.99
    O.S. Cover Plate Speed B2103 Type R & Type S

    O.S. Cover Plate Speed B2103 Type R & Type S

    $25.40
    103 Air Cleaner Body

    103 Air Cleaner Body

    $10.99
    Inner Head: B2101 Speed

    Inner Head: B2101 Speed

    $57.96
    Slide Valve 12F2: 12XZ Speed Spec 3

    Slide Valve 12F2: 12XZ Speed Spec 3

    $33.61
    Insulator, 60K

    Insulator, 60K

    $19.05
    Gasket Head: 46AXII

    Gasket Head: 46AXII

    $6.49
    5(1)

    Exhaust Gasket: GT33

    $7.46

    Intake Pipe Left: FT-120 240

    $21.10

    Muffler Assembly Screw F-4050: FS-62V

    $9.49

    Shaft Throttle WLA-2: GT55

    $29.60

    Rocker Cover Retaining Screws: FS-200S

    $9.85

    Drive Shaft Fixing Screw: Sirius 7

    $14.75

    Gasket Set: 25FX

    $7.46

    Intake Manifold Assembly: FT-120 and FT-160

    $44.10

    Intake Manifold: FS-95V

    $34.76
    5(1)

    Mixture Control Valve #60C: 61FX

    $9.85

    Needle Inlet Valve WLA-2: GT55

    $17.11

    Piston Ring: 200 Surpass

    $37.80

    Cap Screw Set M2.6x7: 18TZ

    $9.85

    Main Shaft: 5010-810

    $10.99

    Crankshaft Clamp: 32-46

    $25.44
    Carburetor Retainer: 12TZ Spec II

    Carburetor Retainer: 12TZ Spec II

    $13.78
    Crankshaft: T1201 Speed

    Crankshaft: T1201 Speed

    $130.92
    Inner Head: 25XZ

    Inner Head: 25XZ

    $57.99
    Needle #20E

    Needle #20E

    $13.78
    Cylinder & Piston: 21XZ-B Speed Spec III

    Cylinder & Piston: 21XZ-B Speed Spec III

    $176.56
    Crankcase: GT33

    Crankcase: GT33

    $97.81
    Cover Plate: FSa-56II
    4(1)

    Cover Plate: FSa-56II

    $19.31
    Crankshaft: FS155A-P

    Crankshaft: FS155A-P

    $109.12
    Gasket: #3A2CBD
    3(1)

    Gasket: #3A2CBD

    $6.49
    Link Pin Retainer: FR5

    Link Pin Retainer: FR5

    $8.43
    Valve Spring Retainer: 120Surpass

    Valve Spring Retainer: 120Surpass

    $8.49
    Intake Manifold Assembly B: IL-300

    Intake Manifold Assembly B: IL-300

    $22.37
    Carburetor Rotor: #60K

    Carburetor Rotor: #60K

    $34.99
    Carburetor: #80N, FS200S

    Carburetor: #80N, FS200S

    $97.90
    Inner Head O-Ring: (S-32)(Black) B2104

    Inner Head O-Ring: (S-32)(Black) B2104

    $10.70
    Carburetor: #11G Slide, 18CVR

    Carburetor: #11G Slide, 18CVR

    $87.29
    Crankcase: B2101 Speed

    Crankcase: B2101 Speed

    $152.45
    Crankcase: 21XR-B Version II

    Crankcase: 21XR-B Version II

    $71.54
    O.S. Outer Head Speed B2103 Type R

    O.S. Outer Head Speed B2103 Type R

    $102.47
    Crankcase: 21XZ-B Speed

    Crankcase: 21XZ-B Speed

    $139.99
    Crankshaft: Recoil 30VG

    Crankshaft: Recoil 30VG

    $66.04
    Mixture Control Screw: 120 Surpass

    Mixture Control Screw: 120 Surpass

    $6.49
    Needle High Speed WLA-2: GT55

    Needle High Speed WLA-2: GT55

    $15.99
    Metering Needle Assembly: 21VZB (P) V-Spec 21C

    Metering Needle Assembly: 21VZB (P) V-Spec 21C

    $19.14
    Pump Body Assembly: WLA-2 GT55

    Pump Body Assembly: WLA-2 GT55

    $32.99
    Camshaft: FS-91-P

    Camshaft: FS-91-P

    $60.72
    Carburetor Body: 80T, Sirius 7

    Carburetor Body: 80T, Sirius 7

    $58.00
    Carburetor Rotor: #60L, 91SX-H

    Carburetor Rotor: #60L, 91SX-H

    $29.49
    Choke Valve: WLA-2, GT55

    Choke Valve: WLA-2, GT55

    $14.99
    Head Gasket: 65LA

    Head Gasket: 65LA

    $6.49
    Mixture Control Vavle Assembly 70T: GF30

    Mixture Control Vavle Assembly 70T: GF30

    $27.29
    Needle #40N
    5(2)

    Needle #40N

    $13.78
    Piston Ring: FS110A

    Piston Ring: FS110A

    $29.49
    Rocker Support: FS155A-P

    Rocker Support: FS155A-P

    $38.95
    Venturi #61N: FS72A

    Venturi #61N: FS72A

    $19.14
    Front Bearing: 12-300

    Front Bearing: 12-300

    $21.17
    Rear Bearing: 50SX-H, 55HZ, 55AX
    5(2)

    Rear Bearing: 50SX-H, 55HZ, 55AX

    $34.76
    Carburetor Body: 61D, 65AX

    Carburetor Body: 61D, 65AX

    $48.41
    Connecting Rod: FS-20

    Connecting Rod: FS-20

    $17.99
    Crankshaft: 37SZ-H

    Crankshaft: 37SZ-H

    $50.76
    Crankshaft: 200 Surpass

    Crankshaft: 200 Surpass

    $125.39
    Cylinder Liner: 105HZ
    4(1)

    Cylinder Liner: 105HZ

    $105.05
    Muffler Assembly F-5050: FS-95V

    Muffler Assembly F-5050: FS-95V

    $63.04
    Piston Pin: 61-300

    Piston Pin: 61-300

    $10.86
    Prop Nut 10453 10-12
    4(1)

    Prop Nut 10453 10-12

    $6.49
    Thrust Washer: 120Surpass

    Thrust Washer: 120Surpass

    $6.49
    202 Super Air Cleaner

    202 Super Air Cleaner

    $22.26
    Cylinder Liner 91HZ-R Speed 3D

    Cylinder Liner 91HZ-R Speed 3D

    $121.99
    Slide Valve 2 (21M)

    Slide Valve 2 (21M)

    $32.99
    Silencer Gasket: 56FS
    1(1)

    Silencer Gasket: 56FS

    $6.49
    Rear Adapter: 15CV-X

    Rear Adapter: 15CV-X

    $16.09
    Connecting Rod: FL-70

    Connecting Rod: FL-70

    $21.10
    Rear Cover: Sirius 7

    Rear Cover: Sirius 7

    $173.36
    Crankshaft: 120AX Special

    Crankshaft: 120AX Special

    $102.45
    Pilot Shaft: GT60

    Pilot Shaft: GT60

    $19.90
    Throttle Lever #2CBD #2H

    Throttle Lever #2CBD #2H

    $6.49
    F-4051 Silencer: O.S. FS-64V

    F-4051 Silencer: O.S. FS-64V

    $57.99
    Cir Clip In-Flight Needle Valve

    Cir Clip In-Flight Needle Valve

    $6.49
    Connecting Rod: 35AX

    Connecting Rod: 35AX

    $22.04
    Crankshaft: 240-300

    Crankshaft: 240-300

    $284.01
    Prop Washer: GT55

    Prop Washer: GT55

    $9.85
    Tappet Screw: F40-300
    5(2)

    Tappet Screw: F40-300

    $9.99
    Inner Head: R2102 Speed

    Inner Head: R2102 Speed

    $51.64
    Crankcase: 21TM

    Crankcase: 21TM

    $97.72
    Crankshaft: 12XZ Speed

    Crankshaft: 12XZ Speed

    $94.99
    Crankshaft: T1202 Speed

    Crankshaft: T1202 Speed

    $125.42
    Crankshaft: 21VZ-R

    Crankshaft: 21VZ-R

    $109.99
    Inner Head: 21XZ-B

    Inner Head: 21XZ-B

    $52.99
    Needle Valve Assembly #11H #11HB

    Needle Valve Assembly #11H #11HB

    $27.29
    Rotor Spring #2CK #2B

    Rotor Spring #2CK #2B

    $6.49
    Slide Valve 12D: 18TM

    Slide Valve 12D: 18TM

    $32.56
    Outer Head: O.S. Speed B21 Pink Rhonda Drake Edition

    Outer Head: O.S. Speed B21 Pink Rhonda Drake Edition

    $111.25

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