Crankshaft СМД-18/22 (Н) новый 20-04С9, Kharkivska region.

SMD-18/22 crankshafts are installed on 4-cylinder diesel engines SMD: SMD-17,18,19,20,21,22.
(//tractor-service.com)
The manufacturer of SMD-18/22 crankshafts is the "Serp and Molot Diesel" plant.

The applications of 4-cylinder SMD diesel engines are very wide, and the engines themselves differ in endurance. Most often, 4-cylinder SMD diesels are used on agricultural tracked tractors DT-75B, DT-75BV, DT-75K, forestry tractors TDT-55A, LHT-55, TB-1, tomato harvester KTUS-200, agriculturaltracked tractor DT-75N, tracked swamp tractor DT-75BV, forestry tractors TLT-100, L XT-100, LHT-100B, self-propelledgrain harvesters SK-5M "Niva", SKD-6 "Sibiryak" and their modifications, as well as another agricultural technique.