The best engine in its class just got better

The high power configuration comfortably allows the 4LHA to stand world class in all three main areas of comparison namely:

power-to-weight ratio
power-to-displacement ratio
power for a given set of engine dimensions

The 4LHA is designed for use with a variety of marine gearboxes, including straight, angled and vee-drive ZF-Hurth units.
Turbocharger has a waste-gate boost compensator which improves acceleration (4LHA-STP)

Environmentally engineered

This engine shares all the benefits of Yanmar's commitment to protecting the environment in which we live. Features such as:

low noise, low vibration, highly economical use of fuel.
low smoke, especially when accelerating or idling.
Vibration has been kept at a low level due to the use of special steels in the block and other critical areas.

Wide range of applications

Being substantially slimmer configuration means easy installation, even in tight locations. Repowering in most instances is straight-forward; the total package being slimmer, shorter and less bulky than previous models.

Yanmar 4LHA

Specifications

	4LHA-HTP	4LHA-DTP	4LHA-STP
Cylinders	4	4	4
Continuous Power	124mhp @ 3100rpm	158mhp @ 3100rpm	190mhp @ 3100rpm
Rated Power	160mhp @ 3300rpm	200mhp @ 3300rpm	240mhp @ 3300rpm
Cooling System	Heat Exchanger
Bore x Stroke	100 x 110 mm	100 x 110 mm	100 x 110 mm
Displacement	3.455 litres	3.455 litres	3.455 litres
Dry Weight (Engine)	342 kg	365 kg	365 kg

Accessories

Lube oil dipstick for opposite side of engine

	Component	4LHA-HTP	4LHA-DTP / 4LHA-STP
Installation	Flexible engine mount, 4 pcs/set	STD	STD
	Engine foot for marine gear (ZF-Hurth HSW630A1 & H1, HSW450A2 & H2)	Optional	Optional
	C.W. hose for marine gear (ZF-Hurth HSW630A1 & H1 HSW450A2 & H2)	Optional	Optional
	Lube oil cooler and clamp bolts for marine gear	Optional	Optional
Cooling	Exhaust water mixing elbow, L-type	STD	STD
	Exhaust water mixing elbow, Riser type	Optional	Optional
	Kingston cock and cooling water hose 2m	Optional	Optional
	Sea water strainer	Optional	Optional
	Air venting device for cooling water tank (for V-drive)	STD	STD
Lubrication	Lube oil evacuation pump	Optional	Optional
Lubrication	Optional	Optional
Starting and stopping	Electric engine stop solenoid	STD	STD
Starting and stopping	Cold starting aid (Air heater)	STD	STD
Electrical and Instrumentation	Alternator, 12V-80	Optional	Optional
	Electric type bilge pump, 12V	Optional	Optional
	New B-type instrument panel	Optional	Optional
	New C-type instrument panel	STD	STD
	New D-type instrument panel	Optional	Optional
	Meter sensor assy for New B & C-type panel	STD	STD
	Boost meter sensor assy for New D-type panel	Optional	Optional
	Meter sensor assy for dual instrument panel	STD	STD
	Connecting wireharness for dual instrument panel	Optional	Optional
	Extension wireharness (4 & 6m)	6M STD	6M STD
Control	Side-mount type single control head (MORSE:MV)	Optional	Optional
Control	Top-mount type single control head (MORSE:MT3)	Optional	Optional
Others	Fuel water separator	Optional	Optional
	V pulley for fron PTO	Optional	Optional
	Spare parts kit	Optional	Optional