How do you check spare parts availability before buying?

For major brands, check whether a dealer or independent parts importer exists in your country, and price the common wear items: filters, hoses, pins and bushes, tyres, and brake or driveline parts for wheeled machines.

For less common Chinese brands, ask which engine and hydraulic components the machine uses (many are from established suppliers), because those parts are usually easier to source than brand-specific body parts.