Cummins
Cummins X12NS6B440 Engine Assembly
Remanufactured
- Supplied as
- Engine Assembly
- Arrangement / engine number
- Confirm against engine plate
- Displacement
- 11.9 L on Cummins X12 Stage V reference
- Reference configuration
- Inline six-cylinder X12 family
Manufacturer reference data; the supplied build must be confirmed.
Manufacturer application references
- Cummins lists the X12 industrial family for construction and agricultural machinery; the offered NS6B440 installation is not identified.
Confirm the full engine suffix, arrangement and machine serial number for an exact match.
With your order
- 6-month standard brand warranty Included
- Technical review & engine matchingIncluded at no extra cost. We compare the proposed engine with your current assembly using its data plate, arrangement and configuration to confirm the exact match before ordering. Included
- Genuine brand partsReman engines are configured with genuine brand parts, with no aftermarket parts. Included
- Dyno performance test Optional paid
- Complete teardown report On request
- Complete engine testing video On request
- Custom packaging and pallet labeling On request
- Protective coating and paint finish On request
- Custom testing requirements On request
More service options
Pre-dispatch inspection welcomeOptional paid
Radiator, compressor, injector and configuration add-onsBy quote
Any extra cost and preparation time are agreed before proceeding.
Explore engine servicesFreight is charged per engine and shown at checkout.
- No core deposit or return
- International shipping on all engines
Product details
Engine overview
Cummins X12NS6B440 engine assembly. The X12 is Cummins' large six-cylinder industrial platform. This reman listing uses the X12NS6B440 suffix; verify the serial-specific controls, emissions equipment and duty rating before replacing an existing engine.
Cummins' Stage V X12 page is a family reference. Its 11.9 L figure and published architecture do not authenticate this NS6B440 build's exact displacement, rating or regulatory package.
Configuration & included components
- Engine model: Cummins X12NS6B440.
- Condition: Remanufactured.
- Supply scope: engine assembly; included components and exact build are confirmed in the written order specification.
- Product code: NYE-CUM-X12NS6B440-R-ENG-S53937450.
Warranty & delivery
- 6-month standard brand warranty
- There is no core deposit and no requirement to return your old engine.
- International DDP: Available for all engines, with estimated delivery in 2–3 weeks. Duties, tariffs, import taxes and customs fees are included.
- Freight is charged per engine and shown at checkout.
Technical specifications
The figures below identify manufacturer-documented models or clearly marked supplier references. They do not establish the rating, emissions certification, included accessories or exact weight of this offered assembly.
| Specification | Reference detail |
|---|---|
| Reference configuration | Inline six-cylinder X12 family |
| Displacement | 11.9 L on Cummins X12 Stage V reference |
| Build identification | Engine serial and Cummins configuration/CPL records |
Technical details
X12 engines can differ in control software, aftertreatment, electrical harness, cooling, exhaust and flywheel connections. For a reman replacement, document the rebuilt scope and confirm any test record alongside the exact serial and emissions label.
Technical references
Applications & fitment
Documented application references
- Cummins lists the X12 industrial family for construction and agricultural machinery; the offered NS6B440 installation is not identified.
These are manufacturer or machine-OEM model references, not a fitment guarantee for the particular assembly supplied.
Confirm your engine match
Email info@nyengines.com with the current engine plate, machine model and serial, destination, and product code NYE-CUM-X12NS6B440-R-ENG-S53937450. We will check the required configuration and included components with you.
Buyer guide
- Provide original X12 serial/CPL and full NS6B440 plate text.
- Compare ECM/harness, aftertreatment, turbo, cooling and driveline interface.
- Confirm reman scope, rating and emissions certificate for the actual offered unit.
Buying questions
Is the supplier's 324 kW number OEM-verified?
No exact X12NS6B440 manufacturer rating sheet was found; use the offered engine's plate/build record.
Does Cummins' Stage V page prove Stage V compliance here?
No. It describes a different documented X12 version.