boating engine / professional vessel / inboard / propulsion
Alpha 20 Lister Petter



  • Market:

    boating, professional vessel

  • Type:

    inboard, propulsion, auxiliary

  • Power source:


  • Technology:

    direct fuel injection, atmospheric

  • Power:

    Max.: 19.7 ch (19.7 hp)

    Min.: 9.1 ch (9.1 hp)


Variable speed; maximum power at flywheel at 3000 r/min: 14.9 - 41.0 kW; 20 - 55 bhp
Durable, economical liquid cooled marine diesel engines

Suitable for:

small offshore boats and work boats
pleasure boats and hire fleets
propulsion or auxiliary applications

Basic Engine Characteristics

2, 3 or 4 cylinders
raw water heat-exchanger cooling
direct or indirect injection
naturally aspirated or turbocharged
durable, economical and reliable
low fuel consumption
long service periods

Design Features and Equipment

heat exchanger
water cooled exhaust manifold
raw water pump
fuel filter/agglomerator
self-bleed fuel system with fuel lift pump
individual fuel injection pump for each cylinder
high level oil filler and dipstick
raw water cooling system pump
operators’ handbook