This is an alloy power steering tank, made by Moroso, for a BMW E9x M3. MOROSO TANK.
Yctze Aluminium Alloy Power Steering Pump Pulley Replacement for & Key Way Units Through 1972 Power Steering Pump Pulley,aluminium Alloy ,
Power Steering Tank,Cylindrical Aluminum Alloy Power Steering Reservoir with Metal Fixing Ring and Bracket Engineering Racing Steering Oil Tanks
S2K-R Racing K series 4 inch Alloy Power Steering Pump pulley 7PK K20 K24 KSWAP
2 Groove Aluminum Alloy Power Steering Pump Pulley, Replacement for Key Way Units Through 1972, Durable Engine Accessory with Dual Groove Design for GM Vehicles
Power Steering Reservoir Power Steering Tank Aluminium Alloy High Strength