Iron Tractor Close Plug

A Swaraj tractor "chamber nut" is likely a part of the oil sump (or oil chamber), a component that holds the engine oil in place. Alternatively, "chamber nut" could be a misnomer for other nuts, such as a spindle nut used to retain the hub on the spindle, a rear wheel nut for the axle, or a head dome nut used in the engine's cylinder head assembly.