Cummins QST30 Engine Assembly - New OEM Build
Cummins
Cummins QST30 Engine Assembly
New OEM Build
- Supplied as
- Diesel Engine Assembly
- Arrangement / engine number
- Confirm against engine plate
- Displacement
- 30.5 L (1,861 cu in)
- Engine configuration
- 50-degree V12, four-cycle diesel
Manufacturer reference data; the supplied build must be confirmed.
Manufacturer application references
- Cummins identifies QST30 mining uses including haul trucks, blasthole drills, wheel loaders and excavators.
- Cummins also identifies QST30 applications in construction equipment.
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
This Cummins QST30 listing offers a new engine assembly.
Cummins' QST30 is a 30.5 L, 50-degree V12 diesel platform used in large mining and industrial equipment. Cummins documents older HPI and later high-pressure common-rail emissions configurations, so the exact supplied fuel system and emissions status must be established from its dataplate and build record.
Configuration & included components
- Condition: New.
- Assembly scope: Engine assembly.
- Confirm the included components and installation arrangement with NY Engines before ordering.
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 are manufacturer reference data for the versions identified. Final output, dimensions, controls and emissions equipment depend on the engine build and application.
| Specification | Details |
|---|---|
| Engine configuration | 50-degree V12, four-cycle diesel |
| Displacement | 30.5 L (1,861 cu in) |
| Bore | 140 mm (5.51 in) |
| Stroke | 165 mm (6.50 in) |
| Aspiration | Turbocharged and charge-air cooled in Cummins' mining reference |
| Published mining-rating examples | 950-1,500 hp (708-1,119 kW) at 1,800-2,100 rpm; supplied rating unconfirmed |
| Published peak-torque examples | 3,414-4,877 lb-ft (4,629-6,612 N m) at 1,300-1,400 rpm; supplied rating unconfirmed |
| Published fuel-system variants | HPI in Cummins older mining product reference; high-pressure common rail in Cummins Tier 4 Final/Stage V mining reference; supplied system unconfirmed |
| Published emissions configurations | Cummins documents Tier I/II/Stage II and separate Tier 4 Final/Stage V configurations; this assembly's certification unconfirmed |
| Mining-reference engine weight | 2,998 kg dry / 3,328 kg wet for the brochure configuration; supplied assembly weight may differ |
| Mining brochure reference engine dimensions | 1,887 × 1,483 × 1,744 mm (L × W × H); brochure configuration only, not the offered assembly envelope |
Technical details
- The older HPI mining reference uses Cummins Quantum electronic controls for engine monitoring and protection.
- Cummins documents ferrous cast ductile-iron pistons and two-stage oil filtration for its QST30 mining configuration.
- Cummins documents a Prelub system for mining configurations; presence on the offered engine is unconfirmed.
Applications & fitment
Documented application references
- Cummins identifies QST30 mining uses including haul trucks, blasthole drills, wheel loaders and excavators.
- Cummins also identifies QST30 applications in construction equipment.
Application examples identify documented uses of the engine family. Confirm fitment against the machine and engine serial numbers before ordering.
Confirm your engine match
- QST30 variants differ in ECM, fuel and aftertreatment systems, power calibration, mounts and accessory layout. Verify the engine serial/CPL and host-machine serial before confirming equipment fitment.
For fitment checks, availability or a quote, email info@nyengines.com with your engine data-plate photo, machine details and required assembly scope.
Buyer guide
- Cummins documents an older QST30 mining configuration with HPI and newer Tier 4 Final/Stage V versions with high-pressure common rail and SCR. Identify fuel and emissions systems before specifying a replacement.
- The QST30 mining brochure lists several power and speed ratings. Compare engine serial number, CPL and advertised horsepower/rpm with the original engine.
- For an SCR-equipped QST30, confirm which engine, exhaust-aftertreatment and control components are included. Cummins describes SCR as part of the newer integrated emissions system.
Buying questions
Does every Cummins QST30 use SCR?
No. Cummins' older mining reference describes HPI with earlier emissions classifications; its newer Tier 4 Final/Stage V reference describes HPCR with SCR. Confirm the specific build.
Can QST30 be selected for a haul truck by model name alone?
Cummins lists haul trucks as a QST30 application type, but its brochure includes several ratings. Match serial/CPL, power calibration, cooling, mounts and machine serial.