Cummins
Cummins QSB5.9 Engine Assembly
New
- Supplied as
- Engine Assembly
- Arrangement / engine number
- Confirm against engine plate
- Displacement
- 5.9 L
- Reference configuration
- Inline six-cylinder QSB5.9
Manufacturer reference data; the supplied build must be confirmed.
Manufacturer application references
- Cummins lists QSB5.9 variants for agricultural machinery, including tractors and harvest equipment; the particular engine build must be matched.
Confirm the full engine suffix, arrangement and machine serial number for an exact match.
With your order
- 1-year 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
- Complete engine testing video On request
- Custom packaging and pallet labeling 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 QSB5.9 engine assembly. Cummins' QSB5.9 is a six-cylinder 5.9 L electronically managed engine family used in off-highway equipment. Published versions differ in valve train and power setting, making the engine serial and CPL central to a suitable replacement.
Cummins' QSB Tier 2 material is a family reference; it does not establish that this offered engine is Tier 2 or has any specific published rating.
Configuration & included components
- Engine model: Cummins QSB5.9.
- Condition: New.
- Supply scope: engine assembly; included components and exact build are confirmed in the written order specification.
- Product code: NYE-CUM-QSB5-9-N-ENG-S54079188.
Warranty & delivery
- 1-year 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 QSB5.9 |
| Displacement | 5.9 L |
| Bore × stroke | 102 × 120 mm on documented QSB5.9 |
| Valve-train choices | 12- and 24-valve six-cylinder QSB versions documented |
| Build identification | Serial, configuration and CPL |
Technical details
Check 12- versus 24-valve head, ECM and harness, injection equipment, turbo and cooling arrangement, flywheel housing and mounts. Generator or marine QSB5.9 ratings are not transferable to a machine engine.
Technical references
Applications & fitment
Documented application references
- Cummins lists QSB5.9 variants for agricultural machinery, including tractors and harvest equipment; the particular engine build must be matched.
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-QSB5-9-N-ENG-S54079188. We will check the required configuration and included components with you.
Buyer guide
- Provide the old engine's serial and CPL plus the machine serial.
- Confirm valve-head, fuel/ECM and emissions arrangement.
- Compare starter, flywheel housing, cooling and mount interfaces.
Buying questions
Are all QSB5.9 engines 24-valve?
No. Cummins documents 12- and 24-valve six-cylinder QSB versions.
Can the Tier 2 page establish this engine's compliance?
No. The offered serial and certification must be reviewed separately.