Weichai Series WP2.3N/WP3N/WP4.1N/WP6/WP7/WP10/WP12/WP13/M26/M33/M55, etc. Marine Diesel Engine
WP4/WP6 series diesel engine is upgrade version of 226B series high-speed diesel engine which is manufactured by a joint venture co-founded by Weichai and Germany-based Deutz AG with increased strokes and optimized design. It has advantages of compact structure, high reliability, high economic performance, easy operation and maintenance. This series engine, as main or auxiliary engine, are chiefly mounted on small-size transport ships and fishing boats on inland rivers.
Product Model | Power(kW) | Power(HP) | Rotation Speed(r/min) |
WP3.2C34-15E321 | 25 | 34 | 1500 |
WP3.2C37-18E321 | 27 | 36 | 1800 |
WP3.2C41-15E321 | 30 | 40 | 1500 |
WP3.2C50-24E321 | 36.8 | 49 | 2400 |
WP2.3NC54-18E220 | 40 | 54 | 1800 |
WP2.3NC68-18E220 | 50 | 67 | 1800 |
WP2.3NC82-18E220 | 60 | 80 | 1800 |
WP2.3NC110-25E220 | 81 | 109 | 2500 |
WP2.3NC130-32E220 | 95 | 127 | 3200 |
WP3NC115-30E220 | 85 | 114 | 3000 |
WP3NC130-30E220 | 95 | 127 | 3000 |
WP3NC150-30E220 | 110 | 147 | 3000 |
WP3NC160-30E220 | 118 | 158 | 3000 |
WP4.1C54-15 | 40 | 54 | 1500 |
WP4.1C68-15 | 50 | 67 | 1500 |
WP4.1C82-18 | 60 | 80 | 1800 |
Engine configuration | Inline 4 cylinder, four-stroke | Number of cylinders | 4 |
Bore | 98mm (WP3.2) | Stroke | 105mm(WP3.2) |
89mm(WP2.3N) | 92mm(WP2.3N) | ||
94mm(WP3N) | 107mm(WP3N) | ||
105mm(WP4.1) | 118mm(WP4.1) | ||
Displacement | 3.17L(WP3.2) | Intake mode | Naturally aspirated |
2.3L(WP2.3N) | |||
2.97L(WP3N) | Supercharged | ||
4.09L(WP4.1) | |||
Oil consumption rate | ≤0.1g/kw.h | Minimum fuel consumption rate | 190g/kw.h |
Start mode | Electric start | Noise | ≤85dB(A) |
Firing order | 1-3-4-2 | Rotation direction (facing free end) | Clockwise |
Engine size (approximate; final size depends on options) | ||||
WP3.2 | WP2.3N | WP3N | WP4.1 | |
Length | 752mm | 860mm | 830mm | 1062mm |
Width | 508mm | 650mm | 690mm | 625mm |
Height | 600mm | 800mm | 780mm | 918mm |
Height of lifting cylinder | 600mm | 600mm | 600mm | 800mm |
Dry net weight (basic working engine without optional accessories) | 300kg | 300kg | 350kg | 400kg |
mainly applied on the high speed boats and yachts passenger ships, fishing boats and official boats as main engine or auxiliary engine in offshore market.