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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.

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97-120 of 1605 Results

    Clearance Sale!

    Cylinder Head: GT15HZ

    $32.41$108.03

    Clearance Sale!

    Prop Washer: 40LA

    $6.49

    Needle Valve Holder 61ER

    $11.80

    Idle Gear: IL-300 Dia Star

    $29.47

    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

    Cylinder Head: O.S. FS-64V

    $76.99

    Tappet Screw: F40-300

    $9.99

    Security Ring: OMA-2810 OMA-2815

    $5.99

    Crankshaft: 12XZ Speed

    $94.99

    Plug Cable: Sirius 7

    $10.94

    Carburetor Retainer: #61B, 91HZ

    $13.78

    Clearance Sale!

    Cover Plate: FS155A-P

    $6.61$22.04

    Clearance Sale!

    Crankshaft: 120AX

    $80.37

    Clearance Sale!

    Carburetor Reed Valve Gasket: GT33

    $3.28$10.94

    Clearance Sale!

    Clearance Sale!

    Piston Ring: FS-62V

    $10.42$34.76

    Clearance Sale!

    Crankcase: Sirius 7

    $432.78

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