Mercedes-Benz MB517 engine

The Mercedes-Benz MB 517 was a supercharged, four-stroke, V-12 diesel marine engine version of the MB 507; derived from the MB 503 gasoline engine. The MB 507 was also based on the Daimler-Benz DB 603 inverted V-12 aircraft engine, and shared an identical bore, stroke, and displacement. Unlike the gasoline-powered MB 503, the diesel-powered MB 507 did not use a supercharger.^[1][2][3]

Mercedes-Benz MB517
Overview
Manufacturer	Mercedes-Benz
Production	1944
Layout
Configuration	60° V12
Displacement	42.35 L (2,584 cu in)
Cylinder bore	6.22 in (158.0 mm)
Piston stroke	7.09 in (180.1 mm)
Valvetrain	24-valve, SOHC, two-valves per cylinder
Compression ratio	17.0:1
Combustion
Supercharger	Roots-type supercharger
Fuel system	Fuel injection
Fuel type	Diesel
Oil system	Dry sump
Cooling system	Water-cooled
Output
Power output	1,200–1,375 hp (895–1,025 kW)
Torque output	2,520–3,140 lb⋅ft (3,417–4,257 N⋅m)
Dimensions
Dry weight	790–920 kg (1,742–2,028 lb)

Applications

Panzer VIII Maus V2