Laser - 6162 Pre Chamber Removal Kit - Mercedes Benz Supplied with a double ended adaptor incorporating M22x1mm and M22x1.5mm threads in one adaptor Used to remove the pre-chamber from the cylinder head on early indirect injection Mercedes diesel engines Used after the pre-chamber socket (Laser 5472) has been removed Engines covered include OM 601, 602.91/93/94, 603.91/93/96/97, 604, 605, 606, 615, 616, 617.91/93/95 Always grease threaded bar