Construction Engine
Cummins QSB4.5 Industrial Diesel Engine (80–160 hp)
Cummins QSB4.5 4.5 L 4-cylinder diesel engine, 80–160 hp (60–118 kW), 8 ratings for construction work. Each unit nameplate-verified.
Specifications
- Engine Model
- QSB4.5-C80 ~ C160
- Displacement
- 4.5 L
- Cylinders & Configuration
- Inline 4, 4-cycle
- Rated Power Range
- 60–118 kW (80–160 hp) @ 2200 rpm
- Aspiration
- Turbocharged & Charge Air cooled
- Applications
- Construction
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Cummins QSB4.5 is a 4.5 L 4-cylinder Cummins diesel engine supplied in 8 factory ratings from 80 hp (60 kW) to 160 hp (118 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 QSB4.5 rating, including the 4.5 L displacement and the inline 4-cylinder layout. Ratings that share displacement and cylinder count but differ in output are listed individually in the model selection section.
Model Selection: QSB4.5 Ratings
Each entry in this section is one rating of the Cummins QSB4.5. 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.
QSB4.5-C80
QSB4.5-C80 — rated 60 kW (80 hp) at 2200 rpm; peak torque 370 N·m at 1400 rpm; emissions Euro III.
QSB4.5-C95
QSB4.5-C95 — rated 71 kW (95 hp) at 2200 rpm; peak torque 420 N·m at 1500 rpm; emissions Euro III.
QSB4.5-C100
QSB4.5-C100 — rated 74 kW (100 hp) at 2200 rpm; peak torque 430 N·m at 1400 rpm; emissions Euro III.
QSB4.5-C110
QSB4.5-C110 — rated 82 kW (110 hp) at 2200 rpm; peak torque 480 N·m at 1500 rpm; emissions Euro III.
QSB4.5-C125
QSB4.5-C125 — rated 92 kW (125 hp) at 2200 rpm; peak torque 537 N·m at 1500 rpm; emissions Euro III.
QSB4.5-C130
QSB4.5-C130 — rated 97 kW (130 hp) at 2200 rpm; peak torque 620 N·m at 1500 rpm; emissions Euro III.
QSB4.5-C150
QSB4.5-C150 — rated 112 kW (150 hp) at 2200 rpm; peak torque 560 N·m at 1400 rpm; emissions Euro III.
QSB4.5-C160
QSB4.5-C160 — rated 118 kW (160 hp) at 2200 rpm; peak torque 630 N·m at 1500 rpm; emissions Euro III.
Applications
QSB4.5 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.
Emissions: the ratings listed here carry Euro III. Where a market imposes a different standard, confirm the tier before ordering, because the same model number can be built to more than one tier.
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 QSB4.5-C160), 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 QSB4.5 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the QSB4.5?
The 8 ratings listed on this page run from 80 hp (60 kW) to 160 hp (118 kW).
What displacement and cylinder count does the QSB4.5 use?
Every rating in this family shares the same 4.5 L displacement and inline 4-cylinder, 4-cycle configuration. Ratings differ in output, rated speed and emissions tier rather than in the base engine.
What is the difference between QSB4.5-C150 and QSB4.5-C160?
QSB4.5-C150 is rated 112 kW (150 hp) at 2200 rpm with peak torque of 560 N·m, while QSB4.5-C160 is rated 118 kW (160 hp) at 2200 rpm with 630 N·m. They use the same base engine; the higher rating is the one to specify when the driven load needs the extra torque at the lower speed.
Which emissions tiers are available for the QSB4.5?
The ratings on this page are listed as Euro III. Emissions tier is part of the rating definition, so state the tier your market requires when you request a quotation.
How is a QSB4.5 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.
