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504-2 Engine

Technology used

  • Direct injection
  • Forged-steel cylinder block
  • Toothed belt-drive-controlled camshaft
  • “Viton” gaskets on the ends of the crankshaft
  • Controlled-expansion pistons
  • Automatic drainage to allow self-priming of the pump in case of fuel exhaustion

Technical Characteristics

Power 37 kW
Speed 2600 rev / min
Number of cylinders 4
Bore 84.5 mm
Race 88.9 mm
Combustion Direct Injection TRIM
Compression 17
Direction of rotation Clockwise looking at the flywheel


Width 517 mm
Height 630 mm
Depth 572 mm
Weight 141 kg

About 500 Series / Prima

The Perkins 500/Prima Series engines, launched in 1986, marked an important turning point in the history of the diesel engine. It was the first direct-injected engine used on vans derived from particular vehicles (HSDI/Montego Rover). The two primary features at the root of its design were:
  • Exceptional economy
  • Performance and approval equivalent to gas-engine vehicles
Marine versions of these engines were also marketed. Because these engines are 30% lighter and more compact than other 4-cylinder engines in this category, they offer a true weight/power compromise for small pleasure boats. This line also complies with the AQAP-1 standard (formerly standard Def. 05-21).
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