Abstract: In an engine block of a multi-cylinder internal combustion engine with in-line cylinders, a cooling water jacket surrounds the cylinders and is formed between the cylinders and a cooling water jacket wall. A water box is cast integrally with the engine block at one side of the cooling water jacket wall for receiving an oil cooler and the cooling water jacket wall extends at least partially between, and separates, the water space of the water box and the water jacket. The oil cooler is mounted on a cover mounted onto the water box whereby the oil cooler can be mounted onto, and is removable from the water box together with the cover.

Abstract: In a fuel supply arrangement for plug-in fuel pumps disposed in reception cavities in the cylinder housing of in-line cylinders of an internal combustion engine, a main fuel supply passage extends through the cylinder housing adjacent the reception cavities for the plug-in pumps and branch-off passages extend from the main fuel passage in alignment with respective fuel passages in the plug-in pump, and sleeves are disposed in the fuel passages of the plug-in pumps and received in the branch passages formed in the cylinder housing for engaging and properly positioning the plug-in pumps with respect to the cylinder housing.