The Honda GX25 is the pint-sized 25cc 4-stroke that happily powers brushcutters, pumps and other garden gadgets without waking the neighbours. In Australia, new GX25 engines typically sell for around AUD $350–$550 depending on spec and shaft type; complete tools built around it (like a brushcutter) usually land about AUD $500–$900. On the used market, expect roughly AUD $120–$300 for a decent engine, or AUD $200–$600 for a working tool, with condition and service history doing the heavy lifting. Budget a little extra for filters, a gasket kit, and maybe a recoil starter if you’re reviving a crusty one. If you see prices far outside those ranges, it’s either a bargain or a bedtime story—inspect before you part with your hard-earned.
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