The bringing together, for the benefit of others, of a variety of goods, excluding the transport thereof, enabling customers to conveniently view and purchase, also on-line: motors and engines (except for land vehicles), cylinders for engines, cylinder heads for engines, cylinder sleeves for engines, pistons for engines, connecting rods for engines, friction bearings for engines, valves for engines, camshafts for engines, oil pumps for engines, water pumps for engines, distribution pumps, camshaft driving belts for engines, engine crankshafts, fly-wheels for engines, turbines, transmission chains and belts, gearboxes, other than for land vehicles, filters for engines, gaskets for engines, injection systems and devices for engines, starters for engines, alternators, tappets for engines, engines and motors for vehicles and apparatus for locomotion by land, shafts and camshafts for land vehicles, turbines for land vehicles, transmission chains, couplings, belts and gearings for land vehicles, gearboxes for land vehicles, starters for land vehicles