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HOLIDAY HEADQUARTERS

Shop Our Holiday Gift Guide

NEW & IN STOCK

Hot Releases Ready To Ship Out

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.

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97-120 of 1605 Results

    Prop Washer: 40LA

    $6.49

    Needle Valve Holder 61ER

    $11.80

    Cover Plate: 55HZ Hyper

    $11.72

    Clearance Sale!

    Drive Washer: GF30

    $11.40$38.03

    Clearance Sale!

    Cover Gasket: 200 Surpass

    $6.49

    Rocker Arm Shaft: Sirius 7

    $9.44

    Main Shaft: 3805-1200

    $8.99

    Crankcase: 21XZ-B Speed Spec II

    $157.70

    Gasket Head, .2 Aluminum: 21XZ-R

    $6.49

    Clearance Sale!

    Connecting Rod: GF30

    $17.36$57.86

    Clearance Sale!

    Silencer Assembly F-5040: FS110A

    $57.86

    Tappet Screw: F40-300

    $9.99

    Cylinder Head: O.S. FS-64V

    $76.99

    Security Ring: OMA-2810 OMA-2815

    $5.99

    Crankshaft: 12XZ Speed

    $94.99

    Plug Cable: Sirius 7

    $10.94

    Clearance Sale!

    Cover Plate: FS155A-P

    $6.61$22.04

    Clearance Sale!

    Clearance Sale!

    Piston Ring: FS-62V

    $10.42$34.76

    Clearance Sale!

    Crankcase: Sirius 7

    $432.78

    Assembly Screw: 55AX

    $9.85

    Rocker Cover: Sirius 7

    $14.77

    Inner Head: O.S. Speed R2104

    $76.71

    Pump Plate (PD-09) 2/3 Assembly: GF30 II

    $71.58

    Gasket Set: FS-120 II

    $10.94

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