Auxiliary engine
Diesel generator component
Evidence: maker and full engine designation, serial number, a photograph of the whole nameplate, part number or previous order reference, quantity, next port of call. Reviewed: matching the designation to a part-book page, then OEM route against a verified alternative in light of the buyer's approval requirements. See Yanmar 6EY18 parts and CAT 3516 parts.
Main engine
Piston, liner and cylinder group
Evidence: engine designation and build, part-book page, wear measurements, photographs of the unit, and what the set has to include — liner, a ring set per cylinder, liner O-rings, piston rod, stuffing box rings and parts, crosshead bearings and pin. Reviewed: completeness of the set and build compatibility before any route is weighed. See pistons, liners and cylinder parts and MAN B&W S50MC parts.
Separator
Fuel oil separator service items
Evidence: separator model and serial number, duty (fuel, lube oil, bilge) and the oil or fuel grade it runs on, bowl and disc-stack reference, the fitted gravity disc inside diameter in mm, nameplate photograph, what the service kit contains, planned maintenance interval. Reviewed: confirming the model family and the kit contents — O-rings, seals and the disc stack are checked against a part-book page, not against a series name. See separator spare parts.
Turbocharger and pumps
Rotating assemblies
Turbocharger evidence: type and serial number from the turbocharger's own nameplate, not the engine's; rotor and compressor wheel build; nozzle ring and diffuser reference; whether the request is a complete cartridge or separate parts. Pump evidence: type and frame size, capacity and head, impeller reference, mechanical seal make and arrangement, shaft sleeve, bearings, position in the system. Reviewed: telling a complete assembly apart from loose parts, with the build confirmed on a part-book page. See turbocharger parts and pump parts.
Tied to a port call
Port-timed equipment request
Evidence: current or next port of call, ETA, how urgent it is, nameplate photograph and installed position, and a contact for technical clarifications. Reviewed: cutting the clarification loops before routes are weighed. No delivery is promised at this stage — terms are fixed only in the quotation. See time-critical RFQ.
No part number
Photo-led identification
Evidence: close-ups of the part, a general view of the assembly, every marking and stamp, a drawing or part-book page, position in the system, what the part does. Reviewed: building a technical identification trail before routes are weighed at all. See RFQ without a part number and Wärtsilä and Sulzer designation compatibility.
Fuel injection equipment
Injection pumps and injectors
Evidence: engine make and type, pump and injector designation from the nameplate, plunger-and-barrel and nozzle numbers, quantity — a plunger and barrel are matched as a pair and are not supplied separately — hours run on the assembly, and how it failed: injection pressure loss, coking, leakage. Reviewed: checking designations against a part-book page and confirming what the repair kit contains, before routes are weighed. See Wärtsilä W32 parts.