Pillar · Marine diesel engine
Marine diesel engines
Marine listings built around the Cummins GM marine generation series — 47 to 83 kW at listed speeds — inside a dedicated marine category.
The catalogue carries a dedicated marine category — marine diesel engine, Cummins marine diesel engine and marine power generation listings — and its hardest data is the marine power generation table for the Cummins GM series. That table lists five ratings: 4BTA3.9-GM47 at 47 kW, GM55 at 55 kW, GM65 at 65 kW, 6BT5.9-GM80 at 80 kW and GM83 at 83 kW, at speeds of 1,500–1,800 rpm on 3.9-litre and 5.9-litre displacements. Those are generator-drive ratings for shipboard power, and this page treats them that way.
The catalogue also lists marine model pages beyond the GM table, including a 6CTA8.3 marine model. Per-model tables for those sit on the catalogue's own pages; if your vessel runs a larger marine engine, send the full designation and confirm its listed specification in the enquiry. The GM table lists generation engines; it is not a propulsion listing. The marine record here is the generation ratings plus the wider marine category.
Listed range at a glance
| Model / line | Details on record |
|---|---|
| 4BTA3.9-GM47 | 47 kW · 3.9 L · listed at 1,500–1,800 rpm |
| 4BTA3.9-GM55 | 55 kW · 3.9 L · listed at 1,500–1,800 rpm |
| 4BTA3.9-GM65 | 65 kW · 3.9 L · listed at 1,500–1,800 rpm |
| 6BT5.9-GM80 | 80 kW · 5.9 L · listed at 1,500 rpm |
| 6BT5.9-GM83 | 83 kW · 5.9 L · listed at 1,500 rpm |
| Also listed | Marine category pages and marine model pages, including 6CTA8.3 marine (confirm per model) |
Sizing shipboard generation from the GM table
Work the vessel's electrical load list the same way you would a land genset, then respect the two-speed listing: the GM ratings are quoted across 1,500 and 1,800 rpm, corresponding to 50 Hz and 60 Hz shipboard systems. The GM80 and GM83 are both listed at 1,500 rpm, so a 60 Hz vessel should not assume the same figures — confirm the rating for your frequency in the enquiry. Fishing and work boats with hotel loads, refrigeration and deck machinery typically land in the GM65 to GM83 span; the blog guide on marine generator sizing works the load-list method through in detail.
For propulsion or larger generation needs beyond the GM table, the route is the full model designation: the marine category on record includes larger marine model pages, and the Cummins family tables list the base engines those marine versions derive from. Confirm the marine variant's own listed specification — not the land variant's — before you order.
How buyers spec this line
- GM figures are marine generation ratings, listed at 1,500–1,800 rpm.
- Confirm the rating at your shipboard frequency (50 Hz vs 60 Hz).
- Larger marine models: enquire by full designation; confirm the marine variant's table.
- The marine generators page collects the generation side in one place.
Terms on record
Listed terms on record: complete engines and power units carry a delivery window of 15–30 days and a warranty of 1 year or 1,200 hours, whichever comes first, as published in the supplier's FAQ. Confirm the exact rating, scope of supply and delivery window for your model before you order.
Buyer questions
Are the GM engines propulsion engines?
The GM table lists marine power generation ratings. If you need propulsion, state it in the enquiry and have the correct marine model's specification confirmed.
Which GM model for a 60 kW shipboard load?
The GM figures are marine engine ratings, not a complete set's electrical output, so a load figure alone does not select a model. Send your load list and ask for a complete set whose rated electrical output and starting capability cover it, with the rating at your frequency and the duty basis stated in the quote.
Do you list larger marine engines?
The marine category includes larger marine model pages, including a 6CTA8.3 marine listing. Send the designation you need and confirm its listed table.
Related lines
Send the model designation, get a spec-matched quote
Tell us the exact model designation, quantity, destination port and the rating your application needs. Confirm the listed specification, price and delivery window for that model before you place an order.
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