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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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1238

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270

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241

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36

$500 or more

26

1-96 of 1812 Results

    91HZ-R 3D Speed Helicopter Engine, Black

    91HZ-R 3D Speed Helicopter Engine, Black

    $649.99
    O.S.SPEED B2105

    O.S.SPEED B2105

    $752.99
    GF40 40cc 4-Stroke Gas Airplane Engine with Muffler
    5(1)

    GF40 40cc 4-Stroke Gas Airplane Engine with Muffler

    $959.99
    O.S. Speed B21 Adam Drake Edition 3, 1/8 Buggy Engine & Pipe Combo Set

    O.S. Speed B21 Adam Drake Edition 3, 1/8 Buggy Engine & Pipe Combo Set

    $799.99
    O.S. Speed B21 Adam Drake Edition 3, 1/8 Buggy Engine

    O.S. Speed B21 Adam Drake Edition 3, 1/8 Buggy Engine

    $649.99
    120AX Ringed 1.20 Airplane Glow Engine without Muffler
    3.7(3)

    120AX Ringed 1.20 Airplane Glow Engine without Muffler

    $354.85
    55AX ABL .55 Airplane Glow Engine with Muffler
    4.8(63)

    55AX ABL .55 Airplane Glow Engine with Muffler

    $225.14
    FS-95V Ringed 4-Stroke .95 Airplane Glow Engine
    4.9(14)

    FS-95V Ringed 4-Stroke .95 Airplane Glow Engine

    $439.99
    15LA ABN .15 Airplane Glow Engine with Muffler
    4.4(7)

    15LA ABN .15 Airplane Glow Engine with Muffler

    $131.99
    65AX ABL .65 Airplane Glow Engine with Muffler
    4.9(32)

    65AX ABL .65 Airplane Glow Engine with Muffler

    $269.06
    46AXII ABL .46 Airplane Glow Engine with Muffler
    4.9(79)

    46AXII ABL .46 Airplane Glow Engine with Muffler

    $203.89
    O.S. Speed R2104 1/8 Scale Engine

    O.S. Speed R2104 1/8 Scale Engine

    $884.99
    21TM ABC .21 Engine with Manifold: 2.5 and 3.3 Revo
    5(1)

    21TM ABC .21 Engine with Manifold: 2.5 and 3.3 Revo

    $374.18
    R21 1/8 On-Road Club Racer Engine
    5(1)

    R21 1/8 On-Road Club Racer Engine

    $441.47
    GF30 II 30cc 4-Stroke Gas Engine with Ignition Module
    5(1)

    GF30 II 30cc 4-Stroke Gas Engine with Ignition Module

    $879.99
    95AX Ringed .95 Airplane Glow Engine with Muffler
    4.2(5)

    95AX Ringed .95 Airplane Glow Engine with Muffler

    $381.99
    120AX Ringed 1.20 Airplane Glow Engine with Muffler
    5(8)

    120AX Ringed 1.20 Airplane Glow Engine with Muffler

    $381.12
    FSa-72II Airplane Engine with F-5030 Silencer
    5(4)

    FSa-72II Airplane Engine with F-5030 Silencer

    $637.99
    FSa-56II Airplane Engine with F-4040 Silencer
    5(2)

    FSa-56II Airplane Engine with F-4040 Silencer

    $527.99
    O.S. Speed T1204 Touring Engine

    O.S. Speed T1204 Touring Engine

    $745.99
    O.S. SPEED R21GT2

    O.S. SPEED R21GT2

    $839.99
    FS155-a Alpha Series 1.55 4-Stroke Pumped Engine
    5(2)

    FS155-a Alpha Series 1.55 4-Stroke Pumped Engine

    $659.99
    GGT15 15cc Gas/Glow Ignition 2-Cycle Engine with Muffler
    4.4(8)

    GGT15 15cc Gas/Glow Ignition 2-Cycle Engine with Muffler

    $508.76
    O.S. FS-64V (61T2) with F-4051 Silencer

    O.S. FS-64V (61T2) with F-4051 Silencer

    $464.99
    O.S. Speed T1204 Touring Engine/T1070 Pipe Combo

    O.S. Speed T1204 Touring Engine/T1070 Pipe Combo

    $756.99
    GT15 15cc Gas 2-Cycle Airplane Engine with Muffler
    5(5)

    GT15 15cc Gas 2-Cycle Airplane Engine with Muffler

    $508.76
    35AX ABL .35 Airplane Glow Engine with Muffler
    5(4)

    35AX ABL .35 Airplane Glow Engine with Muffler

    $237.41
    O.S. SPEED R21GT2 Combo Set

    O.S. SPEED R21GT2 Combo Set

    $959.99
    75AX ABL .75 Airplane Glow Engine with Muffler
    4.9(10)

    75AX ABL .75 Airplane Glow Engine with Muffler

    $343.93
    21TM ABC .21 Engine with Manifold: 2.5 and 3.3 T-Maxx
    5(3)

    21TM ABC .21 Engine with Manifold: 2.5 and 3.3 T-Maxx

    $374.18
    Flex Shaft: 21XM

    Flex Shaft: 21XM

    $25.20
    Muffler Assembly Screws #E-2050 (4)

    Muffler Assembly Screws #E-2050 (4)

    $7.49
    Front Bearing: 11PS

    Front Bearing: 11PS

    $22.04
    Cylinder Head: 21XZ-M Inboard Marine

    Cylinder Head: 21XZ-M Inboard Marine

    $72.99
    Gasket Head: 21XM V2 Outboard Marine

    Gasket Head: 21XM V2 Outboard Marine

    $6.49
    Carburetor Retainer: 30VG

    Carburetor Retainer: 30VG

    $13.78
    Low Unit Screw (4): 21XM

    Low Unit Screw (4): 21XM

    $10.86
    Cylinder & Piston: O.S. SPEED R21 EURO

    Cylinder & Piston: O.S. SPEED R21 EURO

    $249.99
    Cavitation Plt: 21XM

    Cavitation Plt: 21XM

    $22.24
    Rear Board Unit Fixing Screw: 21XM V2 Outboard

    Rear Board Unit Fixing Screw: 21XM V2 Outboard

    $10.86
    Lower Unit: 21XM

    Lower Unit: 21XM

    $100.94
    Needle #4BK #2K

    Needle #4BK #2K

    $13.78
    Throttle Lever #4BK #4C

    Throttle Lever #4BK #4C

    $8.49
    Marine Head Assembly: 18CVR-M

    Marine Head Assembly: 18CVR-M

    $48.30
    Needle Assembly #40A

    Needle Assembly #40A

    $22.04
    Screw Set (10): 21XM

    Screw Set (10): 21XM

    $11.75
    Cylinder & Piston Assembly: 21XZ-R

    Cylinder & Piston Assembly: 21XZ-R

    $188.33
    Rear Housing: 21XM

    Rear Housing: 21XM

    $52.65
    Idle Adj Valve; FS-90/120

    Idle Adj Valve; FS-90/120

    $11.80
    Throttle Link Assembly: 21XM

    Throttle Link Assembly: 21XM

    $10.86
    Gasket Set: 21XM

    Gasket Set: 21XM

    $11.87
    Steering Arm: 21XM

    Steering Arm: 21XM

    $13.75
    Flywheel #2J

    Flywheel #2J

    $31.50
    Crankcase: 21XM

    Crankcase: 21XM

    $125.10
    Cover Plate: 21XZ-B

    Cover Plate: 21XZ-B

    $22.04
    Rotor Guide Screw #20J

    Rotor Guide Screw #20J

    $6.49
    Flywheel Nut: 21XM
    3(2)

    Flywheel Nut: 21XM

    $8.49
    Flex Shaft Housing: 21XM

    Flex Shaft Housing: 21XM

    $10.86
    O-Ring Set #60B

    O-Ring Set #60B

    $8.43
    Lower Arm: 21XM

    Lower Arm: 21XM

    $21.06
    Crankshaft: 21XM V2 Outboard Marine

    Crankshaft: 21XM V2 Outboard Marine

    $130.94
    Side Plate: 21XM

    Side Plate: 21XM

    $22.24
    Crankcase: 18CV-R

    Crankcase: 18CV-R

    $52.52
    Needle Assembly 21-120
    5(1)

    Needle Assembly 21-120

    $22.04
    Screw Set CZ-M (8)

    Screw Set CZ-M (8)

    $9.85
    Connecting Rod: RXB/R/M

    Connecting Rod: RXB/R/M

    $26.24
    Front Bearing: 21RZ-B

    Front Bearing: 21RZ-B

    $27.29
    Flex Shaft Assembl:y 21XM

    Flex Shaft Assembl:y 21XM

    $29.46
    Crankshaft: 21XZ-M Inboard Marine

    Crankshaft: 21XZ-M Inboard Marine

    $149.99
    Prop Nut: 21XM
    5(1)

    Prop Nut: 21XM

    $6.49
    Arm Shaft Assembly: 21XM

    Arm Shaft Assembly: 21XM

    $13.75
    Cylinder Rebuild Kit: O.S. SPEED R21 EURO

    Cylinder Rebuild Kit: O.S. SPEED R21 EURO

    $251.47
    Inner Head: 21XZ-R

    Inner Head: 21XZ-R

    $52.69
    Drive Shaft: 21XM

    Drive Shaft: 21XM

    $46.43
    Gasket Cover: 21XM V2 Outboard Marine

    Gasket Cover: 21XM V2 Outboard Marine

    $6.49
    Carburetor Body: #40A

    Carburetor Body: #40A

    $47.99
    Drive Shaft Nut: 21XM
    4(1)

    Drive Shaft Nut: 21XM

    $11.87
    Upper Arm: 21XM

    Upper Arm: 21XM

    $22.24
    Rotor Spring #4B #4D #4C

    Rotor Spring #4B #4D #4C

    $6.49
    Screw Set CZ-MX (8)

    Screw Set CZ-MX (8)

    $7.46
    Mount Plate: 21XM

    Mount Plate: 21XM

    $22.24
    RP7 Turbo Glow Plug Cold On-Road

    RP7 Turbo Glow Plug Cold On-Road

    $14.99
    Rear Bearing: 21VZ, 30VG

    Rear Bearing: 21VZ, 30VG

    $63.04
    Outboard Unit Assembly: 21XM V2 Outboard Marine

    Outboard Unit Assembly: 21XM V2 Outboard Marine

    $270.99
    Prop Shaft: 21XM

    Prop Shaft: 21XM

    $57.74
    Muffler: E2050-2, 21XM, V2 Outboard Marine

    Muffler: E2050-2, 21XM, V2 Outboard Marine

    $87.29
    Cylinder & Piston Assembly: 21XM V2 Outboard Marine

    Cylinder & Piston Assembly: 21XM V2 Outboard Marine

    $155.31
    Cylinder Head: 21XM V2 Outboard Marine

    Cylinder Head: 21XM V2 Outboard Marine

    $91.34
    Carburetor #20J: 21XM, 21RG-M

    Carburetor #20J: 21XM, 21RG-M

    $147.07
    42mm Carbon Fiber Propeller: 21XM

    42mm Carbon Fiber Propeller: 21XM

    $20.05
    Glow G5 Gas Plug: GGT15
    4.8(5)

    Glow G5 Gas Plug: GGT15

    $17.99
    Speed P3 Gold Ultra Hot Plug

    Speed P3 Gold Ultra Hot Plug

    $16.99
    Crankcase: B2102 Speed

    Crankcase: B2102 Speed

    $147.19
    Connecting Rod: Speed B2101, B2102
    5(1)

    Connecting Rod: Speed B2101, B2102

    $52.58
    Throttle Lever #2F #2FB

    Throttle Lever #2F #2FB

    $7.49
    Cylinder Head: GGT15

    Cylinder Head: GGT15

    $52.69

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