| Item name | Spare part number | Description |
| 1 | - | Bolt |
| 2 | - | Piston cooling jets |
Jets located in the cylinder block provide lubrication and cooling of the pistons and piston pins. These nozzles spray oil into the piston, after which the oil, flowing through two internal undulating channels, helps to cool the piston head.
Lubrication oil is supplied through the cylinder block through the main oil line and channels in the block to all major moving parts. Through these channels, oil flows through holes made in the crankshaft to the main bearings and bearings of the lower head of the connecting rod.
To the tapered bore on the right rear of the cylinder block, under the right cylinder head, by means of a connection type "banjo" the oil supply pipe to the turbocharger is connected. Thus, the turbocharger bearings are lubricated through the conical bore with high pressure oil generated by the oil pump.
The cylinders are cooled by liquid flowing through the channels and cavities of the cylinder block.
The cylinder head is fixed to the block with two hollow metal pins located at the rear on both sides.
On the left rear side of the ladder structure, under the turbocharger, there is a hole for the pipeline through which oil returns from the turbocharger to the engine sump.
On the right front side of the cylinder block there are sealed plugs that cover the oil passages. Front and rear of the cylinder block are plugs of the main line of the lubrication system.
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