^AABL — RT-flex84T-D

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Zulu Code Model

Description

Wärtsilä RT-flex84T-D — an 840mm bore engine variant optimized for de-rated, fuel-efficient operation on VLCCs and Ultra Large Container Ships (ULCS).

Specifications

Cycle	2-Stroke
Bore	840 mm
Fuel Injection	Common rail (RT-flex)

Did you know

The Wärtsilä Sulzer RT-flex84T-D engine type was announced in January 2003, as part of the broader RT-flex series. The RT-flex series itself began with the first engine, a Sulzer 6RT-flex58T-B, passing its shop test in January 2001 and entering service in September 2001.
The RT-flex84T-D is part of Wärtsilä's Sulzer RT-flex low-speed marine diesel engine family, which features electronically-controlled common-rail technology. It is specifically designed for the propulsion of very large crude oil tankers (VLCCs and ULCCs).
This model is chosen for its electronically-controlled common-rail system, which offers flexibility in engine operation, leading to benefits such as smokeless operation at all speeds, lower fuel consumption, reduced maintenance, and lower steady running speeds for improved maneuvering.

Model	Bore × Stroke (mm)	Power/Cylinder (kW)	MCR RPM	Application
RT-flex84T-D	840 × 3150	610	76.0	VLCCs, ULCCs
RT-flex96C	960 × 2500	5720 (for 14-cyl)	120	Large container ships
RT-flex60C	600 × 2250	2360	114	Medium-sized container ships, car carriers, reefers
RT-flex50	500 × 2000 (approx)	1660	99-124	Bulk carriers (Handymax to Panamax), product tankers, feeder container vessels

Sources: ihmc.us; meoexamz.co.in; wartsila.com; wartsila.com; wartsila.com; wartsila.com; engine.od.ua; marineengineersknowledge.com; swiss-ships.ch; wartsila.com

Competitive Models

Similar models from other manufacturers — apple to apple.

^AAAA G50ME-C

G50ME-C is a MAN B&W 2S model, coded ^AAAA. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAAE G95ME-C

G95ME-C is a MAN B&W 2S model, coded ^AAAE. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAAD G80ME-C

G80ME-C is a MAN B&W 2S model, coded ^AAAD. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

^AAEA 6EY26W

Yanmar 6EY26W — a 6-cylinder medium-speed four-stroke main engine with 260mm bore. Compact design for coastal tankers, f…

^AAAF S50ME-C

S50ME-C is a MAN B&W 2S model, coded ^AAAF. Typical service: primary propulsion at sea; shaft drive to propeller. Instal…

Spares

Positions 1–12 are the same part on every engine and are safe to quote by code. 13 and 14 vary with cylinder count.

1Cylinder Liner — page under construction
2Piston — page under construction
3Fuel Injector Nozzle — page under construction
4Cylinder Head / Cover — page under construction
5Connecting Rod — page under construction
6Main Bearing — page under construction
7Bottom-End (Crankpin / Con-Rod) Bearing — page under construction
8Fuel Injection Pump — page under construction
9Fuel Injector (Complete) — page under construction
10Exhaust Valve — page under construction
11Inlet Valve — page under construction
12Piston Ring Set — page under construction
13Crankshaft — page under construction
14Camshaft — page under construction

Send enquiry

Send an enquiry to the manufacturer of ^AABL RT-flex84T-D. One broadcast per day.

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Code map

^A  A  B  L
 │  │  │  └── Model: RT-flex84T-D
 │  │  └───── Make: Wärtsilä Sulzer
 │  └──────── Equipment: Main Engine
 └─────────── System: ME, Propulsion & Steering