Construction Engine
Cummins NT855 Industrial Diesel Engine (185–310 hp)
Cummins NT855 14.0 L 6-cylinder diesel engine, 185–310 hp (138–231 kW), 7 ratings for construction work. Each unit nameplate-verified.
Specifications
- Engine Model
- NT855-C28 ~ C310
- Displacement
- 14.0 L
- Cylinders & Configuration
- Inline 6, 4-cycle
- Rated Power Range
- 138–231 kW (185–310 hp) @ 1850–2100 rpm
- Aspiration
- Turbocharged
- Applications
- Construction
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Cummins NT855 is a 14.0 L 6-cylinder Cummins diesel engine supplied in 7 factory ratings from 185 hp (138 kW) to 310 hp (231 kW). Every rating listed on this page is a complete engine for construction duty, not a generator set, and each unit ships with its serial number recorded against the specification sheet that applies to it.
Ratings in this family differ in rated speed, peak torque and emissions tier rather than in displacement or cylinder count, so the choice between them is a duty-matching question. The specifications panel and the per-rating entries on this page are generated from the same source data, so a rating quoted here can be matched directly against a delivery document.
Specifications
The specifications panel lists the family-level values that are common to every NT855 rating, including the 14.0 L displacement and the inline 6-cylinder layout. Ratings that share displacement and cylinder count but differ in output are listed individually in the model selection section.
Model Selection: NT855 Ratings
Each entry in this section is one rating of the Cummins NT855. The rated power is the output at the stated speed; the peak torque figure is the value the rating develops at the lower speed shown, which is what normally decides whether a rating suits a given machine. Each rating carries a stable anchor, so a single rating can be linked or quoted directly.
NT855-C28
NT855-C28 — rated 138 kW (185 hp) at 1850 rpm.
NT855-C280H
NT855-C280H — rated 179 kW (240 hp) at 2000 rpm.
NT855-C250
NT855-C250 — rated 186 kW (250 hp) at 2100 rpm.
NT855-C280
NT855-C280 — rated 187 kW (251 hp) at 2000 rpm.
NT855-C310
NT855-C310 — rated 231 kW (310 hp) at 2100 rpm.
NT855
NT855 — specification to be confirmed from the source sheet.
NT855-C450
NT855-C450 — specification to be confirmed from the source sheet.
Applications
NT855 engines in this family are normally specified for construction work.
Construction duty: the ratings with the higher peak torque are the ones normally quoted for loaders, dozers and haul trucks, where the engine has to hold torque under a sudden increase in load at low ground speed.
Duty cycle: the lower ratings in the same family are used where the duty cycle is closer to continuous and the installed package limits the cooling or the coupling that can be fitted.
Verification, Documentation and Ordering
Each engine is offered with nameplate verification + load-test record per serial number. That means the model and rating printed on the engine nameplate can be checked against the record issued for that serial number before shipment, which is the point most buyers of re-rated or re-exported engines want covered.
To receive a quotation, send the exact rating from the matrix above (for example NT855-C450), the machine or application it will drive, the quantity, and the destination port. If the rating you need is not listed, send the model and the required output and we will confirm whether it belongs to this family or to a neighbouring one.
Buyer tip: Send your NT855 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the NT855?
The 7 ratings listed on this page run from 185 hp (138 kW) to 310 hp (231 kW), at governed speeds between 1850 and 2100 rpm.
What displacement and cylinder count does the NT855 use?
Every rating in this family shares the same 14.0 L displacement and inline 6-cylinder, 4-cycle configuration. Ratings differ in output, rated speed and emissions tier rather than in the base engine.
How is a NT855 rating ordered?
Send the exact rating shown in the model selection table, the application it will drive, the quantity and the destination port. The engine is then quoted against that rating and confirmed against its nameplate and load-test record.
