The first order is the smallest amount of money you will ever make on that vessel.
Sell a pump, a cooler, a valve or a control unit into a new build and you get paid once. That unit then sits in a hull for the next twenty five years, getting serviced, stripped, overhauled and rebuilt, consuming parts every class cycle. Somebody earns that revenue for a quarter of a century. In most cases it is not the manufacturer who built the thing.
It is not really a marine problem either. It shows up in rail, power generation, heavy vehicle and industrial safety. Marine is where it bites hardest, because the assets live longest and travel furthest from you.
Wärtsilä, one of the biggest names in marine power, reported that service accounted for 53 percent of its net sales in 2024. More than half the revenue of a company famous for building engines comes from looking after engines already in service. That is not an accident. It is the business model, built on purpose, because they worked out long ago that the order book is a snapshot and the installed base is an annuity.
Now look at how most component manufacturers are set up. Targets on new build. Bonus on new build. Engineering pointed at the next design in. Spares left to a customer service desk that processes whatever orders arrive on their own. That is a company harvesting the smaller half of its own market and calling it a strategy.
I have sold cooling and equipment into Wärtsilä, Yanmar, MHI and Hamilton Jet. Winning those builds is hard and it matters. But the build is the start of the revenue, not the revenue itself.
It almost always goes wrong at contract stage, not in year seven.
You sell to the yard or to the OEM. Nobody tells you the hull number, the vessel name, the owner or the manager. Your unit vanishes into a build and you have no idea where it went. When it needs attention seven years later the superintendent phones whoever the part number belongs to. If that is the OEM and not you, the order goes to them and comes back to you at their price, or it never comes back at all.
You agree a spares price list at contract stage and it gets locked for the life of the programme. You were fighting for the build and you conceded the part that was going to pay you.
And with no serial number register you cannot tell an owner what is fitted, when it was commissioned or what it needs next, so you react to failures instead of scheduling work.
A vessel gets bought once and serviced for thirty years. If you only sold it once, you sold the wrong thing.
None of that is a pricing problem or a product problem. It is a commercial architecture problem. Contract terms, part identity, the data you capture and the channel you appoint all get decided early, and then they set your revenue for decades.
The marine aftermarket runs on a published timetable and most suppliers ignore it.
Under SOLAS a cargo ship must have the outside of its hull inspected twice within every five year class period, and the gap between those two inspections cannot exceed thirty six months. In practice that puts most vessels in a yard on a two and a half year rhythm, with the cycle known years ahead.
That is a plannable buying window. The workscope is built by the superintendent months before the vessel arrives, the budget is set and the yard is booked. Turn up when the ship is already in dock and you are quoting against whoever is on the quayside with stock. Turn up six to nine months earlier with a condition report and a recommended scope, and you are writing the list everybody else quotes against.
Every long cycle industry works this way. Shutdowns, overhauls and refits are scheduled events dressed up as emergencies.
At Hughes Safety Showers I inherited a Middle East channel producing roughly the same number every year. Not growing, not collapsing. Flat. Management read that as stability. It was a ceiling.
The distributor was a PPE house selling safety equipment, which is a completely different sale to a completely different buyer. I removed the partners that were no longer fit for purpose, built relationships with fire safety players whose projects actually aligned, got close to the EPC contractors directly, and ran a two prong route of direct where possible and alongside the partner where that worked better. Middle East revenue rose 167 percent in 2024, and the business went from £3.9M to £6.9M over my time there.
A flat year on year number through a channel is not a stable business. It is a channel telling you how much it is willing to sell.
The marine version is a service network you do not control. If the work on your equipment is done by a yard or a third party sourcing parts wherever is quickest, you have handed away the recurring revenue and it does not come back. If your partner cannot physically cover the trading area, you lose jobs on response time before price is ever discussed. Mapping where your installed base sits against where your service coverage actually reaches is the most useful exercise most manufacturers never do. It is the gap our own platform Parteloa was built to expose.
Capture the asset data. Vessel, owner, manager, commissioning date, serial number, running hours. Put a clause in the supply contract entitling you to it.
Own the part identity. If your component ships under somebody else's number, the reorder is not yours.
Price the spare on availability and downtime, not on cost plus a margin copied from the original unit. A part that keeps a vessel earning is not worth what it cost you to make.
Build service coverage against trading routes, not against a map of countries.
Go after refits and repowering. Being designed into the original build is the biggest lever you have and it tilts the odds hard in your favour, but it is not the only way in. Plenty of business is won years later on availability, service reach, obsolescence cover and a straight commercial case, by suppliers who were never in that build at all.
If you sell equipment with a long service life and your revenue is still almost all new build, there is a second business sitting inside your first one and nobody is running it. The Market Diagnostic gives you a straight read on it in five working days for $197. Or take twenty minutes and we will talk it through.
The Market Diagnostic gives you a go or no-go in 5 working days, built on real intelligence.