Component parts for engines M756 (PAO “Zvezda”)

Ring designation
Catalog number Tehnolit number
504.02.236-1А – block sleeve 504.02.236-1А-ТС
503.02.236А – block sleeve 503.02.236А-ТС
501.04.004 – piston pin 501.04.004-Т
504.04.208B – compression ring top К160.31.57УПШ-2ТNL
504.04.217– oil scraper ring lower К160.25.60КШL
504.04.228 – oil scraper ring М160.25.60УПШ-1СNL
501-05.033– connecting rod pin 501-05.033-Т
501-05.044– connecting rod pin 501-05.044-Т
503-08.035– sealing ring У90.20.31
503-19.055– sealing ring У156.25.40УЛ
504-19.111– sealing ring У180.25.40УЛШ
470.25.130– sealing ring У45.23.23
632.10.020 – sealing ring У215.40.65УП
473.15.006– sealing ring У260.40.90
773.25.024 – sealing ring У60.25.25
М-509324 R – sealing ring У63.25.25
503Б-45.318– sealing ring У248.35.70
501-07.043– sealing ring У310.30.100
507.58.054– sealing ring У380.345.125
501-07-042– sealing ring У380.35.125
507-58-042– sealing ring У440.40.140
507-58-038– sealing ring У505.40.160
15М.04.19SB-3БSB– bushing 15М.04.19сб-3Б-ТС
М04.07SPCH-Т – intake valve
М04.08SPCH-Т – release valve
11М.01.22.4/11М.01.23.4 – root liner
11М.01.32.4/11М.01.33.4 – root liner
11М.01.34.4/11М.01.35.4 – root liner
11М.01.75.4/11М.01.76.4 – root liner
11М.07.35SP- connecting rod bearing (pair) 11М.07.35СП-Т
1М.04.31- cover gasket
1М.04.40- intake valve guide 1М.04.40-Т
1М.04.41- release valve guide 1М.04.41-Т
1М.04.43- intake and exhaust valve seat 1М.04.43-Т
15М.04.104 – bushing Т08-15М.04.104
15М.04.104 – bushing (steel) 15М.04.104-ТС
15М.04.74А – thrust ring
15М.04.72А – intermediate ring
11М.07.29SP- connecting rod mechanism 11М.07.29СП-Т
11М.07.02А – top oil scraper ring М180.30.65УПШ-МNL
11М.07.092 – oil scraper ring lower М180.30.65УПШ-MNL
11М.07.137 – sealing ring К180.29.65КШ
11М.07.143 – compression ring top К180.28.62УПШ-2ТNL
11М.07.143 – compression ring. top К180.28.62УПШ-2ТХL
11М.07.94B – oil scraper ring М180.28.62УПШ-2ТМNL
11М.07.151 – top oil scraper ring М180.30.65УПШ-1СМNL
11М.07.152 – oil scraper ring lower М180.30.65УПШ-1СМПNL
6910.02 –oil scraper ring М180.61.65ШNL
11М07.151+11М.07.152 М180.61.65УПШ-2СМNL
11М.07.193/240 – piston
1М07.16 – piston pin 1М.07.16-Т
11М.07.18– connecting rod pin 11М.07.18-Т
11М.15.772 – sealing ring У160.30.60
760.17.07-1 – sealing ring У2103.30.90УП
1М32.12 – piston ring (fuel pump) У60.20.30Ш
756А 45 70/756А 45 90 – ротор
1М.57.20 – gasket
420.06.603-Т – camshaft
С-718762– bushing С-718762


M756 series engine: 12-cylinder, four-stroke diesel engine with V-shaped arrangement of cylinders, gas turbine supercharging from a single turbocharger. The engine is designed for installation on diesel trains and railcars. The range of products (piston rings, pistons, pins, cylinder bushings; liners; connecting rods, monoblocks and other engine parts; rings, rotors, impellers and other components of the TKR23 turbocharger) are used at JSC Belarusian Railways, JSC Russian Railways, PJSC Zvezda “, etc. Pistons made of AK12D aluminum. The production method is hot stamping. Piston blanks obtained by hot stamping have improved mechanical properties, as well as high metal continuity, as a result of which the service life of the cylinder-piston group and the engine as a whole increases. Liners made of 38Kh2MYuA steel are subjected to the process of ion-plasma nitriding, which increases the wear resistance of the liners and the engine life. Liners made of ductile cast iron with spheroidal graphite, obtained by the “NTSLN” method, have a highly dispersed structure, as well as improved mechanical properties. They have been tested, are supplied and continue to operate on the engines of the Belarusian railway. A liner with such a structure has increased wear resistance, as a result of which both the service life of the CPG and the engine as a whole increases.

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