QSL for Industrial Applications

Overview

QSL for Industrial Applications

There is no substitute for power when your equipment needs it. That’s why Cummins QSL offers ratings from 280-365 hp (209-272 kW) and a torque rise of up to 50%. QSL engines combine advanced in-cylinder combustion technology and a High-Pressure Common-Rail (HPCR) fuel system to increase power and reduce emissions. At the same time, the QSL delivers better cold starting and runs 50% quieter for increased operator comfort. Every day.

QSL engines currently meet Tier 3/Stage IIIA emissions standards with an in-cylinder solution that doesn’t require complex add-ons. The advanced QSL engine platform will be carried forward with the addition of aftertreatment to meet Tier 4/Stage IV emissions through 2011 and beyond.

Performance

Cummins QSL engines are built to deliver heavy-duty performance in every piece of machinery. Full-authority electronic engine controls combine with the High-Pressure Common-Rail fuel system for strong performance at every rpm. Its free-breathing 24-valve design and centered injectors give the QSL one of the highest power-to-weight ratios in its class. Plus, the QSL is capable of running on high-sulfur fuels, so it’s at home in every corner of the globe.

Specifications

Engine Type In-Line, 6-Cylinder
Displacement 543 CU IN (8.9 L*)
Advertised Horsepower 280-365 HP (209-272 KW)
Peak Power 280-375 HP (209-280 KW)
Peak Torque 950-1120 LB-FT (1288-1519 N•M)
Bore and Stroke 4.49 IN X 5.69 IN (114 MM X 144.5 MM) 
Aspiration Turbocharged and Charge Air Cooled
Oil System Capacity 24 U.S. QT (22.7 L*) 
Coolant Capacity 11.6 U.S. QT (11.0 L*) 
Length 44.4 IN (1128 MM) 
Width 27.7 IN (704 MM) 
Height 45.9 IN (1166 MM) 
Wet Weight 1,627 LB (738 KG) 

*L = Liters/Litres

Engine Finder Specifications

Markets
Certification Level Tier 3 / Stage IIIA
Power 280 - 365 hp / 209 - 272 kW
Torque 950 - 1120 lb-ft / 1288 - 1519 N•m

Ratings

Engine Model Advertised HP (kW) @ RPM Peak HP (kW) @ RPM Peak Torque LB-FT (Nm) @ RPM
QSL 365*  365 (272) @ 2100   375 (280) @ 2000   1113 (1509) @ 1500
QSL 350*  350 (261) @ 2100   370 (276) @ 1900   1120 (1519) @ 1500 
QSL 325   325 (242) @ 2100   350 (261) @ 1900   1050 (1424) @ 1500 
QSL 305   305 (227) @ 2000   340 (254) @ 1800   1110 (1505) @ 1400
QSL 300   300 (224) @ 2100   325 (242) @ 1900   1010 (1369) @ 1500 
QSL 300   300 (224) @ 2000   300 (224) @ 2000   1010 (1369) @ 1500 
QSL 300**   300 (224) @ 1800   300 (224) @ 1800   1000 (1356) @ 1400
QSL 280   280 (209) @ 2100   307 (229) @ 1800   1050 (1424) @ 1500 
QSL 280   280 (209) @ 2000   300 (224) @ 1800   1000 (1356) @ 1500 
QSL 280**   280 (209) @ 1800   280 (209) @ 1800   950 (1288) @ 1400 

*Indicates a restricted rating.

**Indicates a continuous rating.

All ratings are intermittent unless otherwise noted.

Additional ratings may be available. Check with your Cummins distributor or dealer.

Brochures Available

Title Bulletin Number Request View  
Cummins Power For Well Servicing Brochure 4087355 View  Download
Encompass Tri-Fold Mailer 3624570 Request View  Download
QSL Tier 3 for Industrial Applications Spec Sheet 4087068 Request View  Download
QSL Tier 3 for Industrial Applications Spec Sheet - French 4087084 Request View  Download