![Wright RD-1820 (converted as the D-200 to Diesel by Caterpillar) M4A6 tanks | Engineering, Performance engines, Custom trucks Wright RD-1820 (converted as the D-200 to Diesel by Caterpillar) M4A6 tanks | Engineering, Performance engines, Custom trucks](https://i.pinimg.com/736x/92/39/3e/92393e74ca2f03ceb3ffcec68190be7e.jpg)
Wright RD-1820 (converted as the D-200 to Diesel by Caterpillar) M4A6 tanks | Engineering, Performance engines, Custom trucks
![Zvezda M503 was a maritime 7 bank, 42 cylinder diesel radial engine built in the 1970s by the Soviet Union. | Engineering, Marine engineering, Radial engine Zvezda M503 was a maritime 7 bank, 42 cylinder diesel radial engine built in the 1970s by the Soviet Union. | Engineering, Marine engineering, Radial engine](https://i.pinimg.com/originals/ea/05/a5/ea05a55563720088860f3c0f30934971.jpg)
Zvezda M503 was a maritime 7 bank, 42 cylinder diesel radial engine built in the 1970s by the Soviet Union. | Engineering, Marine engineering, Radial engine
![Caterpillar RD-1820, Wright Cyclone 1820 radial engine converted into multi-fuel diesel adopted for ground vehicles. : r/TankPorn Caterpillar RD-1820, Wright Cyclone 1820 radial engine converted into multi-fuel diesel adopted for ground vehicles. : r/TankPorn](https://preview.redd.it/caterpillar-rd-1820-wright-cyclone-1820-radial-engine-v0-ittw218m9n2a1.jpg?width=640&crop=smart&auto=webp&s=502a3d151a3b0d189247a02660f8b0e7576efa97)