On the Water, Reliability is Everything !



KG Mechanical are dedicated marine specialists, and a quality Yanmar Dealer. We maintain all types of marine vessels from the weekend fisherman to the professional, from the part time sailor to the full time world traveller.

Being authorised dealers for YANMAR, PERKINS and IVECO marine and industrial engines and ZF marine transmissions, allows access to genuine parts and technical information.

We provide quality service for all Yanmar diesel engines, pumps, and generators. We cover Papua New Guinea, Torres Strait, Solomon Islands, North Queensland and the Northern Territory.

LHA Shaft Drive Series 160-240mhp


The best engine in its class just got better. The high power configuration comfortably allows the Yanmar 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, Kanzaki and ZF-Hurth units. While the turbocharger has a waste-gate boost compensator which improves acceleration (4LHA-STP)

Model Max Output (kw/rpm) Bore X Stroke (mm) Displacement (Litres) Gearbox Ratio Gearbox Model Dry weight (kg)
4LHA-HTP 118(160mhp)/3300 100*110mm 3.455 2.43 KMH50A 404
4LHA-DTP 147(200mhp)/3300 100*110mm 3.455 1.26 ZF45 398
4LHA-STP 177(240mhp)/3300 100*110mm 3.455 2.04 ZF63A1 409