The 500cc Oil Suction Gun is a hand‑operated fluid extractor designed to remove engine oil, gearbox oil, hydraulic fluid and other light lubricants from sumps, reservoirs and hard‑to‑reach service points. Its primary use is rapid, controllable extraction and transfer of up to half a litre of fluid without the need to lift or tilt heavy components, making routine servicing quicker and cleaner.

Construction comprises a 500cc pressed steel cylinder with a chrome‑plated finish to resist corrosion, a stainless steel plunger rod and nitrile (NBR) seals selected for compatibility with mineral oils and diesel. The tool is supplied with a rigid metal suction tube and a length of reinforced PVC hose terminated with brass fittings. The fittings are compatible with common BSP thread sizes (BSP/BS 21 / ISO 228 nominal connections) used across UK workshops. Operation is by a manual piston/plunger action with a knurled pump head for positive grip and controlled suction; no external drive is required.

Typical applications include automotive workshop oil changes, small engine maintenance, agricultural machinery servicing, marine engine work and general industrial plant maintenance where small‑volume fluid extraction is needed. The suction gun is ideal where access is restricted, such as dipsticks, service plugs and narrow drains, and it is commonly used by mechanics, service engineers, fleet technicians and maintenance teams.

Key benefits include effective corrosion resistance from the chrome plated barrel and brass fittings, good chemical compatibility of the nitrile seals with petroleum‑based fluids, and a compact 500cc capacity that balances frequent stopping and manageable fluid volumes. The stainless plunger and robust body provide reliable service life in typical workshop environments. The tool is not intended for strong solvents, acids or high‑temperature fluids; refer to chemical compatibility for specific fluids.

Duchy Fasteners stocks the Draper 500cc Oil Suction Gun as single units and offers spare hoses and replacement nozzles. We also hold a range of Draper fluid extraction tools in other capacities for larger or smaller jobs—please contact us for available sizes and pack options.