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Weichai WP12 Marine Diesel Engine Series (258-405kW)

2018.09.19

Product Profile

    WP12 Landking diesel engine series is the marine energy-saving and environment-friendly diesel engine independently developed by Weichai in 2004 based on the characteristics and configuration requirements of marine power, with a new design concept. The engine has compact structure, strong power, good economy and high reliability, and is the best choice for inland navigation, fishing, official boats, yachts and passenger ships.

Product parameters

Series

4-Stroke、water cooling、In-Line、Dry cylinder sleeve Number of cylinders

6

Cylinder Diameter/Stroke

126×155mm

Displacement

11.596L

specific lub-oil consumption

192g/kW·h

Oil consumption

0.5g/kW·h

Start Mode

Electric start

Idling

600±30r/min

Firing Order

1-5-3-6-2-4

Smoke intensity

≤1.5Rb

Noise

≤119dB(A)

Emission standard

IMO TIER II

Crankshaft rotation direction

(towards free end)

clockwise

Product Spectrum

Model

Air intak Rated Power(kW/Ps) Speed(r/min)/oil supply mode

WP12C350-15

Supercharged and cold 258/350 1500/Mechanical pump

WP12C400-18

Supercharged and cold 295/400 1800/Mechanical pump

WP12C450-21

Supercharged and cold 330/450 2100/Mechanical pump

WP12C350-15

Supercharged and cold 258/350 1500/Electrically controlled high-pressure common rail

WP12C400-18

Supercharged and cold 295/400 1800/Electrically controlled high-pressure common rail

WP12C450-21

Supercharged and cold 330/450 2100/Electrically controlled high-pressure common rail

WP12C500-21

Supercharged and cold 368/500 2100/Electrically controlled high-pressure common rail

WP12C550-21

Supercharged and cold 405/550 2100/Electrically controlled high-pressure common rail

Remarks: Product parameters and portfolio are for reference only. For fishing vessel engine portfolio, please contact relevant personnel for official information.

Product Features

  • The main structure comes from of Landking Euro III high-pressure common rail diesel engine
  • Enhanced engine body, crankcase, cylinder head, crankshaft, and connecting rod.
  • The main components are subjected to finite element analysis and simulation calculations, resulting in a significant increase in operational reliability and service life.
  • The turbocharger position can be subject to customer requirements.
  • The intercooler and heat exchanger are reasonably arranged at both ends of the diesel engine.
  • Reasonable matching between intake & exhaust and fuel system, with a minimum fuel consumption of 192g/kW·h.
  • PZ8500 in-line flange pump for fully atomized fuel and stronger performance.
  • Four-valve structure with sufficient intake air for combustion and reduced fuel consumption.
  • Broadened engine operating range with good economy under various working conditions.
  • Enhanced engine structure with support and low-noise gear chamber.
  • The special oil sump makes the diesel engine noise much less.
  • Advanced emission indicators with a full load range of less than 1.0Rb.
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R & D

20000 +
Global R & D personnel
5+10 
R & D institutions in five countries, ten regions

Engines

  • 4,000,000 units
  • 25-10000Ps 
  • 200 million kilowatts
  • Whole areas of application

Global layout

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