Cummins 6BT-5.9M Marine engines

Upgrade or Replace your Cummins marine engines with these pigeon pair fully overhauled Cummins powerplants.

For Sale  – 2 x Cummins 6BT-5.9M Marine engines

ESN 46279891 and ESN 46279883

Date of Original manufacture: July 2003
Place of Manufacture: North Carolina, USA
Date of full overhaul by Torquepower: August 2016
Hours since overhaul: Dyno test time only
Rated HP: 220 @ 2600rpm

Key overhaul points:

Fully overhauled for our Managing Director’s personal boat – but higher HP engines were substituted before the 220’s were installed.
Latest genuine Cummins pistons for the marine rating;
New camshafts, followers, cylinder components, crankshafts, bearings, turbos, sea water pumps, valves, valve springs, injectors, oil pumps, water pumps, thermostats, idlers, fuel lift pumps, oil coolers, gaskets and all seals. Cylinder heads were overhauled by Metalock and Fuel Pumps by Prime Fuel Injection.
Turbocharger housings were all ceramic coated by Competition Coatings to prevent internal rust from salt air and reduce radiated heat by up to 60%.
New Barry mounts included with the sale
New oil pump-out pumps included in sale
Engines were dynamically balanced prior to final assembly and testing.
Warranty Coverage: 12 Months or 1500hrs (*conditions apply)

Price: $22,000 each incl. GST – Used Cummins trade in product will be considered.
Contact us on 0417747105 or  0732778277 or via email

Reliable, Clean, Quiet – and Powerful.
Cummins has a strong marine heritage dating back to the Company’s start in 1919. More than 90 years later, Cummins continues its legacy of providing reliable, durable diesels to the marine market with a broad range of power 5.9 to 95 liters for commercial, government and recreational applications.

Cummins marine engines have been engineered to meet the durability and performance needs of marine applications and seawater cooling options and controls seamlessly integrated to ensure the propulsion for your vessel meets your needs.

Used Engines



Torquepower’s international field service team conducted a midlife overhaul on two Cummins K38 – V12 engines in Noumea.


A tropical French enclave, New Caledonia is located in the second biggest coral reef in the world 1500 kms east of Australia in the heart of the South Pacific, and is made up of four archipelagos and 33 islands.


The Laura III is a 2300 tonne cargo vessel that flies a New Caledonia Flag and has a home port in beautiful Noumea. Built in 2009, the vessel is a drive-on, drive-off island trader which freights containers, cars and trucks between the islands.


Specification wise, Laura III is a Heavy Load Carrier with a length of 78.1m and a beam of 16m. She draws just 3 metres and has recorded a maximum speed of 14 knots.


As you read this, Laura III is likely to be steaming along at 10 knots in a pleasant 23 degrees between the islands, powered by 2 impressive Cummins K38 engines each producing 1350HP.

But last week all was quiet as the Torquepower service team flew out from Brisbane to carry out a 6000 hour mid-life service on the engines in the vessel’s home port. The Tahitian crew had organised a scheduled shut down for just a week so the pressure was on!


Says Michael Mercer, one of Torquepower specialist technicians: “ The midlife service had us replacing turbos, water pumps, fuel pumps and injectors. We carried out a full overhead adjustment for each engine, replaced thermostats, resealed the heat exchangers, replaced hoses and supplied fresh engine fluids.
The engines were really well presented and their condition was a credit to the engineers on board the Laura III. We were able to commission each engine following the works but we couldn’t carry out a sea trial because of the sheer size of the boat.”


“It was hot and muggy at around 36 degrees with 100% humidity. We drank eighteen 1.5 litre bottles of water in 4 days . Yes, we would have liked to jump in the water to cool off, but with a big fish works at the nearby Port, diving crews had lookouts for tiger sharks to protect the antifouling crew. We had great help from both the Chief Engineer and Second Engineer, they were cluey; there was a bit of a language barrier both ways but we were able to work around that without a problem.“


“From what we could see there are three ports in Noumea, one for Cruise ships, one for freight and shipping and one for the nearby Nickel Mines. We worked 7am till 6pm, long days, but when we were waiting for a heat exchanger to arrive, we had a quick dip in Anse Veta Bay. “


A local company antifouled and repainted the hull and blasted the bilge tanks while the Torquepower team completed the work on the engines. They were ably assisted by the crew (pictured ) Ghislain Drayton ( Superintendent); Norbert Natua ( Head Engineer) ; Karl Kaimukpo ( Cheif Mate); Bob Tearaimoana (2ndEngineer ); Sylvain Uedre ( 3rd Engineer) and Manava Paepaetaata ( Oiler ).
Torquepower Workshop Manager Carl Bickle, who also travelled over to assist with the repairs adds: “They really were a great bunch of guys to work with. It was a difficult job, but with a big engine room and a genuinely helpful crew, the work was made easier than it would otherwise have been.


The highlight for me was definitely the start-up; after some long hot days, the engines ran sweetly and I knew we were good to go home. “ 0732778277 170 Beatty Road, ARCHERFIELD AUSTRALIA

Fishing Champ’s Blackwatch gets a new Long Block

Stan Aspland is a happy-go-lucky concreter and skipper from Bribie Island with two slightly built daughters, Chantelle and Jacqueline, who are keen fishing champs. They are both award-winning Black and Blue Marlin Game Fisherwomen.

“Jacq’s Back” is a beautiful 34 foot BlackWatch sports fishing cruiser with teak decks, and now powered with a new long block built by Torquepower technicians. “ Mick at Torquepower did everything well. Justin in the Service Department looks after me like a brother; what a great crew you have, “ said Stan. “I’m as surprised as everyone else about how my girls have taken to big game fishing, as a kid, Jacqueline used to get seasick in the bathtub! “

Black Watch