BUY $100 GIFT CARD, GET $20 BONUS

HOLIDAY HEADQUARTERS

Shop Our Holiday Gift Guide

HOLIDAY DELIVERY DEADLINES

Last Chance! See Shipping Schedule Here

BUY $100 GIFT CARD, GET $20 BONUS

HOLIDAY HEADQUARTERS

Shop Our Holiday Gift Guide

HOLIDAY DELIVERY DEADLINES

Last Chance! See Shipping Schedule Here

O.S. Engines

O.S. Engines

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

Filter

1-96 of 1605 Results

    91HZ-R 3D Speed Helicopter Engine, Black

    $649.99

    O.S.SPEED B2105

    $752.99

    46AXII ABL .46 Airplane Glow Engine with Muffler

    $203.89

    65AX ABL .65 Airplane Glow Engine with Muffler

    $269.06

    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

    $799.99

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

    $374.18

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

    $649.99

    15LA ABN .15 Airplane Glow Engine with Muffler

    $131.99

    O.S. SPEED R21GT2 Combo Set

    $959.99

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

    $429.99

    O.S. Speed R21GT2

    $839.99

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

    $374.18

    R21 1/8 On-Road Club Racer Engine

    $441.47

    120AX Ringed 1.20 Airplane Glow Engine without Muffler

    $354.85

    55AX ABL .55 Airplane Glow Engine with Muffler

    $225.14

    GT15 15cc Gas 2-Cycle Airplane Engine with Muffler

    $508.76

    35AX ABL .35 Airplane Glow Engine with Muffler

    $237.41

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

    $879.99

    95AX Ringed .95 Airplane Glow Engine with Muffler

    $349.99

    FS155-a Alpha Series 1.55 4-Stroke Pumped Engine

    $659.99

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

    $508.76

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

    $464.99

    O.S. Speed T1204 Touring Engine

    $745.99

    FSa-72II Airplane Engine with F-5030 Silencer

    $549.99

    75AX ABL .75 Airplane Glow Engine with Muffler

    $343.93

    120AX Ringed 1.20 Airplane Glow Engine with Muffler

    $381.12

    Clearance Sale!

    Flex Shaft: 21XM

    $8.09$25.20

    Clearance Sale!

    Steering Arm: 21XM

    $13.75

    Cylinder & Piston Assembly: 21XZ-R

    $188.33

    Rear Housing: 21XM

    $52.65

    Idle Adj Valve; FS-90/120

    $11.80

    Throttle Link Assembly: 21XM

    $10.86

    RP7 Turbo Glow Plug Cold On-Road

    $14.99

    Drive Shaft Nut: 21XM

    $11.87

    Outboard Unit Assembly: 21XM V2 Outboard Marine

    $270.99

    Upper Arm: 21XM

    $22.24

    Rotor Spring #4B #4D #4C

    $6.49

    Screw Set CZ-MX (8)

    $7.46

    Mount Plate: 21XM

    $22.24

    Connecting Rod: RXB/R/M

    $26.24

    Front Bearing: 21RZ-B

    $27.29

    Inner Head: 21XZ-R

    $52.69

    Clearance Sale!

    Drive Shaft: 21XM

    $13.93$46.43

    Clearance Sale!

    Cylinder Head: 21XZ-M Inboard Marine

    $72.99

    Gasket Cover: 21XM V2 Outboard Marine

    $6.49

    Carburetor Body: #40A

    $47.99

    Cavitation Plt: 21XM

    $22.24

    Lower Unit: 21XM

    $100.94

    Rear Board Unit Fixing Screw: 21XM V2 Outboard

    $10.86

    Clearance Sale!

    Flywheel #2J

    $9.81$31.50

    Clearance Sale!

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

    $87.29

    Crankcase: 21XM

    $125.10

    Front Bearing: 11PS

    $22.04

    Carburetor Retainer: 30VG

    $13.78

    Cylinder Rebuild Kit: O.S. SPEED R21 EURO

    $251.47

    Flex Shaft Assembl:y 21XM

    $29.46

    Muffler Assembly Screws #E-2050 (4)

    $7.49

    Crankcase: 18CV-R

    $52.52

    Cylinder Head: 21XM V2 Outboard Marine

    $91.34

    Needle Assembly 21-120

    $22.04

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

    $147.07

    Lower Arm: 21XM

    $21.06

    42mm Carbon Fiber Propeller: 21XM

    $20.05

    Needle #4BK #2K

    $13.78

    Throttle Lever #4BK #4C

    $8.49

    Needle Assembly #40A

    $22.04

    Screw Set (10): 21XM

    $11.75

    Crankshaft: 21XM V2 Outboard Marine

    $130.94

    Prop Shaft: 21XM

    $57.74

    Side Plate: 21XM

    $22.24

    Gasket Head: 21XM V2 Outboard Marine

    $6.49

    Cylinder & Piston Assembly: 21XM V2 Outboard Marine

    $155.31

    Clearance Sale!

    Flywheel Nut: 21XM

    $2.55$8.49

    Clearance Sale!

    Flex Shaft Housing: 21XM

    $10.86

    Clearance Sale!

    O-Ring Set #60B

    $2.53$8.43

    Clearance Sale!

    Low Unit Screw (4): 21XM

    $10.86

    Crankshaft: 21XZ-M Inboard Marine

    $149.99

    Prop Nut: 21XM

    $6.49

    Arm Shaft Assembly: 21XM

    $13.75

    Cover Plate: 21XZ-B

    $22.04

    Rotor Guide Screw #20J

    $6.49

    #8 Glow Plug Long Medium Air Car

    $11.99

    Exhaust Pipe Assembly: T-120 160

    $22.04

    Valve Spring: FS-70 91SII

    $6.49

    Type F Glow Plug Medium: Four Stroke

    $13.99

    Cover Plate Screws (10): 120AX

    $9.85

    Valve Assembly Intake: FS-91 Surpass

    $38.01

    Rocker Arm Support Assembly: FS-20

    $10.90

    Main Shaft: OMA-3820-1200W

    $8.99

    Carburetor HAD313: GT60

    $190.09

    TR02 Tuned Silencer Set EFRA2165

    $227.84

    Carburetor Dust Covers: #12FB, 12XZ Speed

    $7.46

    Clearance Sale!

    Cylinder Head: GT15HZ

    $32.41$108.03

    Clearance Sale!

    Prop Washer: 40LA

    $6.49

    Needle Valve Holder 61ER

    $11.80

    1

    2

    3

    4

    5