Nameplate
Confirms maker, model, serial number and operating equipment context.
Supply evidence playbook
Marine Engine-Room
Marine Engine-Room
RFQ Evidence Guide
What to send when the vessel needs engine-room spare parts supply but the data is incomplete.
Vessel CoreEvidence-led RFQ preparation
Nameplate / photoGood for identification and serial context
Old offer / invoiceGood for wording and historical route hints
Packing listGood for quantity and grouped item logic
Port / ETAGood for urgency and delivery planning
RFQ preparation
A strong RFQ does not need perfect data. It needs usable evidence.
Ship managers and technical purchasers often work with incomplete part data. Vessel Core can begin from a part number, photo, nameplate, old offer, invoice, packing list, drawing, Excel list or maker/model context.
The goal is simple: reduce ambiguity before supply route review, keep urgency visible and protect private customer, order and supplier details.
Evidence types
What to send with a marine spare parts RFQ.
Each evidence type answers a different supply question.
Photos
Show markings, shape, installed position, damage and component family.
Part number
Fastest route when it is correct, complete and tied to the equipment.
Drawing / manual page
Useful for position numbers, exploded views and uncertain descriptions.
Old offer / invoice
Useful for wording, line grouping, quantities and previous supply context.
Packing list
Useful for delivered item wording, package grouping and quantity checks.
Read the plate
The plate answers most of the questions an RFQ asks.
Almost every page here asks for the nameplate. This is why. One photograph usually carries the designation, the serial and the rating — and it settles who actually built the engine, which is the part buyers most often get wrong.
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Two names, one engine
The plate leads with Doosan and names Sulzer beside it. The engine is a Sulzer RTA design built under licence. Parts are identified against the Sulzer designation, not the builder — send both names and the ambiguity disappears.
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Engine number
The serial, here NL 1841. It separates your unit from every other engine of the same type, and a parts book is indexed against it.
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Engine type
8RTA96C-B. The designation carries bore, stroke variant and mark. One missing character changes the component.
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Rating
The contracted maximum continuous rating — a power figure and a shaft speed, both legible on the plate above. Useful as a cross-check: if the rating does not match the type, one of the two was transcribed wrong.
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Builder
Doosan Engine Co., Ltd. Tells us whose drawings and part numbers apply, which can differ between licensees of the same design.
A photograph of the plate beats a typed transcription: it cannot lose a character, and it shows fields we did not think to ask for. If the plate is unreadable or painted over, send the engine-room log, the parts book page or an old order reference instead.
Representative licensed photography, not a Vessel Core installed reference or completed job. Builder plate photo: NAC, Wikimedia Commons, CC BY-SA 4.0. Vessel Core has no dealership, distribution or partnership agreement with any manufacturer named on this page; it operates as an independent spare parts supplier.
Vessel context
One wider frame answers what the plate cannot.
Vessel Core's own photograph, taken during a yard visit in September 2026 and published with the vessel owner's permission. It is not a claim that Vessel Core supplied equipment to this vessel or carried out the work shown.
Working walkthrough
Twenty-four seconds of the space a request comes from.
Nothing here was arranged for the camera. It is one pass along a machinery space, past the auxiliaries and out towards the air receivers, and it explains most of what a plate photograph cannot.
- Markings face the way the engine was built, not the way you are standing. A photograph taken at arm's length past a handrail, at an angle, half in shadow, is normal evidence. Send it. A worse photograph of the right plate beats a clean photograph of the wrong one.
- Clearance decides the order of the work. What can be reached from the walkway is measured in place; what cannot has to come out first, and that changes the quantity and the timing on the request more than the part number does.
- Everything in frame is in service. Nothing is on a bench under good light. When a quotation asks for one more dimension or one more photograph, that is what it is asking someone to go and do.
RFQ route hints
Match the evidence to the category before sending.
Even when the part number is missing, a route hint helps the first review: seals/gaskets/bearings, pumps, valves, engine components, turbochargers, separators, compressors, sensors or filters.
Seals / gaskets / bearings
- Dimensions
- Material
- Equipment
- Old line wording
Pumps / valves
- Maker
- Model
- System served
- Photos
Main engine parts
- Engine model
- Serial
- Part-book page
- Quantity
Time-critical vessel route
- Vessel / IMO
- Port
- ETA
- Direct contact
Use this guide with
High-intent supply pages.
Start clean
Send the evidence you have. We will structure the RFQ.
Old offer, invoice, packing list, nameplate, drawing, photo or part number can all be useful. Add quantity, urgency, port and ETA for a better route.
