49389-00910 Aftermarket Turbocharger Yanmar 8LV, 119798-18010 | Sawley's Select Marine Parts

🔧 Product Description

Sawley's Select Marine Parts Aftermarket Yanmar 8LV370Z TD04HL4S Turbocharger - Replacement for Part Number: 119798-18010

A new aftermarket Mitsubishi Heavy Industries-style TD04HL4S turbocharger for the Yanmar 8LV370Z marine diesel engine.

The Yanmar 8LV uses a compact sequential twin-turbocharged induction system. This turbocharger corresponds with Mitsubishi reference 49389-00910 and Yanmar turbine assembly 119798-18010.

It converts exhaust-gas energy into compressor-wheel speed, supplying pressurised air through the intercooler to support the engine's 370-metric-horsepower output.

⚙️ Key Features

• New aftermarket Yanmar marine turbocharger

• Replaces Yanmar part number 119798-18010

• Replaces Mitsubishi reference 49389-00910

• TD04HL4S marine turbocharger configuration

• Designed for the Yanmar 8LV370Z engine

• Used as part of the engine's twin-turbocharged induction system

• Direct replacement where the listed identification numbers are fitted

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Yanmar 119798-18010 - Genuine turbine and turbocharger assembly reference

• No verified later Yanmar supersession identified

OEM / Related Numbers:

• 119798-18010

• 11979818010

• Mitsubishi Heavy Industries: 49389-00910

• Mitsubishi Heavy Industries: 4938900910

• Replacement-format reference: 49T89-00910

• Turbo Model: TD04HL4S

• Turbo Family: Mitsubishi TD04

• Engine Family: Yanmar 8LV

Aftermarket / Verified Equivalents:

• Mitsubishi Heavy Industries: 49389-00910

• Denco: 49389-00910 replacement application

• Aftermarket TD04HL4S replacement for 119798-18010

• Aftermarket Yanmar 8LV370Z turbocharger

• Aftermarket replacement referenced as 49T89-00910

🚤 Compatibility

Commonly used on:

• Yanmar 8LV370Z marine diesel engines

• Yanmar ZT370 sterndrive installations

• Twin-turbocharged recreational marine propulsion systems

• Common-rail V8 diesel engines

Verified application:

• Yanmar 8LV370Z

Engine specifications:

• Rated Output: Approximately 272kW / 370 metric horsepower

• Rated Engine Speed: Approximately 3800rpm

• Engine Displacement: Approximately 4.46 litres

• Engine Configuration: 90-degree V8, four-stroke marine diesel

• Fuel System: Denso high-pressure common rail

• Induction System: Twin turbocharged and intercooled

• Cooling System: Freshwater-cooled engine with seawater heat exchanger

• Engine Control: Electronic CAN-bus control

• Representative Sterndrive: Yanmar ZT370

Important fitment note:

• The verified direct application for 49389-00910 / 119798-18010 is the 8LV370Z.

• The 8LV family includes 320HP, 350HP and 370HP calibrations that may use different turbocharger references.

• Do not assume interchangeability across all 8LV engines.

• The 8LV engine uses twin turbochargers. Confirm which turbocharger position is being serviced and compare the identification plate, housing orientation and connection points.

• When replacing one failed turbocharger, inspect the second turbocharger and the complete intake system.

🔌 Function

The turbocharger uses exhaust-gas flow to rotate the turbine wheel and compressor wheel.

Compressed air is directed through the intercooler before entering the cylinders. The twin-turbo system allows the compact V8 engine to provide responsive low-speed torque while maintaining sufficient airflow at higher engine speeds.

Common signs of turbocharger failure:

• Reduced engine power

• Engine will not reach rated 3800rpm

• Uneven boost delivery between the two turbochargers

• Slow vessel acceleration

• Excessive black exhaust smoke

• Blue smoke or increased engine-oil consumption

• Oil inside the compressor outlet or intercooler

• High-pitched whistle, siren or scraping noise

• Excessive shaft movement

• Damaged compressor or turbine blades

• Boost-pressure imbalance or diagnostic fault codes

• High exhaust temperature on one cylinder bank

• Compressor wheel contact with the housing

Installation considerations:

• Confirm Yanmar 119798-18010 and Mitsubishi 49389-00910

• Identify the turbocharger's location in the twin-turbo system

• Compare compressor and turbine housing orientation

• Diagnose the original cause of failure

• Replace the engine oil and oil filter

• Inspect the turbocharger oil-feed and return pipes

• Clean the intercooler and intake ducts

• Remove oil and metal debris from the induction system

• Inspect the second turbocharger for contamination or damage

• Check the air filter and crankcase ventilation system

• Inspect the exhaust manifolds and elbows

• Prime the bearing housing with clean engine oil

• Renew all mounting gaskets and sealing washers

• Establish oil pressure before allowing the turbochargers to operate at speed

• Check both turbochargers for balanced boost operation

• Verify boost pressure and rated rpm during sea trials

📦 Condition

• Sawley's Select Marine Parts aftermarket replacement

• Brand new

• Supplied in protective packaging

• One turbocharger supplied

• Installation gaskets and sealing washers not included unless specifically listed