Type	Four-stroke, water cooled, in-line, turbocharged	Number of cylinders	4
Bore & stroke	105×118 (mm)	Displacement	4.09L
Oil consumption rate	≤0.6 g/kW·h	Noise	≤92 dB (A)
Minimum fuel consumption rate	212 g/kW·h	Idle speed	650±30 r/min
Rotation	Counter-clockwise	Net weight	400 kg
(facing the flywheel)	Counter-clockwise	Net weight	400 kg
Dimensions (L×W×H)	1062×625×918 (mm)

Model Portfolio Table

Series	Model	Aspiration	Rated power	Speed	Fuel system	Emission	Power rating
Series	Model	Aspiration	kW/Ps	r/min	Fuel system	Emission	Power rating
WP4.1	WP4.1C54-15	T	40/54	1500	Mechanical pump	/	P1
	WP4.1C68-15	T	50/68	1500	Mechanical pump	/	P1
	WP4.1C82-18	T	60/82	1800	Mechanical pump	/	P1

Remark: Product parameters and model portfolio are for reference only. Please contact relevant personnel for official information on delivery time and fishing boat model portfolio.

Product description

Safe and reliable

The overhaul period of high-strength engine block, crankshaft, connecting rod and cylinder head is 12000h
Rigorous and perfect test methods ensure the reliability of key parts and components

Strong power

The torque reserve is as high as 20%-35%, the range of large torque section is wide, and the ships equipped with the engine will have good acceleration

Economical and fuel-efficient

Reasonable allocation of oil pump, turbocharger, air intake and exhaust system; low oil consumption under common working conditions; good economical nature
With shallow ω combustion chamber, the best cylinder clearance and swirl ratio, the fuel consumption rate is as low as 212g/kW•h
Customized design for lower fuel consumption

Comfortable and environmentally friendly

The NVH optimization for the whole engine effectively reduces vibration and noise
There is no IMO emission requirement

Strong practicability

LCD Internet instrument can be selected to monitor engine operating parameters in real time, so as to realize automatic alarm and stop
It is suitable for marine engines such as passenger ships, cargo ships, public service ships, fishing boats and tourist ships