Pre Chamber removal adaptor and slide hammer kit used to remove the pre-chamber from the cylinder head on early indirect injection Mercedes-Benz diesel engines. Supplied with a double ended adaptor incorporating M22 x 1mm & M22 x 1.5mm threads in one adaptor.Engines codes include: OM 601, 602.91, 93, 94, 603.91, 93, 96, 97, 604, 605, 606, 615, 616, 617.91/93/95. Used after the pre-chamber socket (Laser Part No. 5472) has been removed. IMPORTANT: ensure the threaded bar is well lubricated with molybdenum disulphide grease before use.