OS Engines OS Engine Spares & Parts for OS Engines

Keep your OS nitro powerplant running sweet with genuine OS Engine spares and replacement parts from Wheelspin Models. Whether you fly, bash or race, you'll find carburettors, needle valves, gaskets, bearings, con-rods, piston and liner sets, crankshafts, backplates, pull starts, glow plugs and more for popular OS Engines.

To find the correct item, match the part number from your manual or the engine code stamped on the case (e.g. 12TG, 21TM, 25FX, 55AX, 18CV-R), then filter by engine family or use our search. Genuine OS spares ensure the right fit, proper clearances and long-term reliability after a rebuild or routine service.

We hold large stocks in the UK and ship quickly, with next-day delivery options available for UK customers. If you need a hand identifying a component or choosing upgrades, our friendly, knowledgeable customer service team is happy to help with expert advice.

From simple gasket sets to complete piston/liner assemblies, restore compression, cure air leaks and keep your OS Engines running at their best. Add what you need to your basket today and get back to the track, field or trail with confidence.