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As sure as a rooster crows, you can expect a QSM-powered tractor to perform. Every morning. Whether you're pulling a chisel plow, cultivating a row crop or hauling in a wagonload of hay, the QSM gets it done. With superior performance that's the result of advanced combustion technology and our responsive wastegated turbo. Electronically controlled unit injectors with cam-driven rate shaping optimize both emissions and efficiency.

Maintenance is kept to an absolute minimum, with oil change intervals that are double the previous standards in some applications, sealed sensors and an auto-tensioning belt drive.

Available in a range of ratings from 250-400 hp (186-298 kW), every QSM is perfectly matched to every piece of equipment.  The QSM not only meets Tier 2 and Euro Stage II emissions standards, its advanced design can reach Tier 3 and Stage IIIA requirements as well, with minimal changes.  Cummins engineers work with the original equipment manufacturers, shaping power curves and ratings to align with work environment, load factors and operating modes. Then, we optimize the engine's performance with other vehicle components and subsystems, using Cummins Advisor.

The QSM comes with virtually every feature standard. QSM options include REPTO (Rear Engine Power Take-Off).

Every QSM engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest in the industry. 
Engine ModelAdvertised hp (kW) @ rpmPeak hp (kW) @ rpmPeak Torque lb-ft (N•m) @ rpm
QSM 400*400 (298) @ 2100446 (333) @ 18001400 (1898) @ 1400
QSM 400400 (298) @ 2100403 (300) @ 18001400 (1898) @ 1400
QSM 400400 (298) @ 1800400 (298) @ 18001400 (1898) @ 1400
QSM 385385 (287) @ 1800385 (287) @ 18001400 (1898) @ 1400
QSM 375375 (280) @ 2100400 (298) @ 18001400 (1898) @ 1400
QSM 375375 (280) @ 2000400 (298) @ 18001400 (1898) @ 1400
QSM 360360 (268) @ 2100396 (295) @ 18001350 (1830) @ 1400
QSM 360**360 (268) @ 1800360 (268) @ 18001260 (1708) @ 1400
QSM 350350 (261) @ 2100385 (287) @ 18001309 (1775) @ 1400
QSM 335335 (250) @ 2100367 (274) @ 18001257 (1704) @ 1400
QSM 335335 (250) @ 2000367 (274) @ 18001321 (1791) @ 1400
QSM 335**335 (250) @ 1800335 (250) @ 18001255 (1702) @ 1400
QSM 330330 (246) @ 2100365 (272) @ 18001234 (1673) @ 1400
QSM 330330 (246) @ 2100353 (263) @ 18001075 (1458) @ 1400
QSM 330330 (246) @ 2100340 (254) @ 18001170 (1586) @ 1400
QSM 330330 (246) @ 2100330 (246) @ 18001235 (1674) @ 1400
QSM 320320 (239) @ 2000350 (261) @ 18001260 (1708) @ 1400
QSM 315315 (235) @ 2100315 (235) @ 21001178 (1597) @ 1400
QSM 315**315 (235) @ 1800315 (235) @ 18001160 (1573) @ 1400
QSM 299**299 (223) @ 1800299 (223) @ 14001260 (1708) @ 1400
QSM 299299 (223) @ 2100315 (235) @ 18001182 (1603) @ 1400
QSM 290290 (216) @ 2100320 (239) @ 18001092 (1481) @ 1400
QSM 290290 (216) @ 2100299 (223) @ 1800952 (1291) @ 1400
QSM 280280 (209) @ 2100280 (209) @ 2100950 (1288) @ 1300
QSM 270**270 (201) @ 1800270 (201) @ 18001010 (1369) @ 1400
QSM 250250 (186) @ 2100250 (186) @ 2100845 (1146) @ 1300

All ratings are intermittent unless otherwise noted.

Additional ratings may be available. Check with your Cummins distributor or dealer.
*Indicates restricted rating.
**Indicates a continuous rating.

The QSM high-pressure injection system and electronic controls ensure clean, powerful and efficient operation every time. The ECM continuously monitors data from strategically placed sensors within the engine, optimizing the fuel-to-air mixture for maximum combustion. This increases engine responsiveness, improves fuel efficiency and significantly reduces noise levels.

The Holset wastegated turbos provide high efficiency and responsive torque every time for everyday dependability.
Specifications.
Engine TypeIn-Line, 6-Cylinder
Displacement660 cu in10.8 liters
Advertised Horsepower290-400 hp216-298 kW
Peak Power446* hp333* kW
Peak Torque1050-1400 lb-ft1424-1898 N•m
Nominal Torque Rise40%
Bore and Stroke4.92 in x 5.79 in125 mm x 147 mm
AspirationTurbocharged and Charge Air Cooled
Oil System Capacity41 U.S. qt39 liters
Coolant Capacity10 U.S. qt9.5 liters
Length51.4 in1306 mm
Width36 in914 mm
Height50.4 in1280 mm
Weight (Wet)2,170 lb984 kg
*Restricted rating.

Every Cummins QSM engine is designed to go the distance, with heavy-duty components that have been proven in hundreds of applications, around the world.
  • Advanced Combustion Technology - Optimized injector tips and a reshaped steel piston bowl improve fuel economy and emissions control, resulting in longer change intervals.
  • Articulated Pistons - Steel-topped articulated pistons handle higher cylinder temperatures for improved fuel economy and emissions control.
  • Patented Mid-Stop Cylinder Liners - Resist cavitation, extend life-to-overhaul.
  • Improved Camshaft Design - Exhaust valve lobes are designed to improve wear tolerance, and the injector lobe profile has been revised to optimize injection.
  • Sealed Sensors - Fully sealed to resist water intrusion and enhance reliability. Combined temperature and pressure sensors reduce inventory and simplify maintenance.
  • CELECT™ Electronic Engine Management - Provides superior performance, fuel efficiency, diagnostics and prognostics using full-authority electronics. Its programmable features let you customize engine performance to equipment use.
  • REPTO - Rear Engine Power Take-Off provides additional capability for driving remote-mounted devices

The QSM was designed to deliver more time in the field and less time being serviced. Maintenance intervals have been made longer, and service has been made simpler.
Maintenance Intervals.

Cummins QSM engines feature a Venturi™ oil filter by our Fleetguard subsidiary in combination with an improved lube system that increases oil flow, reduces lubrication delay at start-up and improves protection.

 
For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.
The base warranty includes full coverage on every QSB engine and branded components, including electrics such as starters and alternators for unlimited hours during the first year of operation, extending through 2 years or 2,000 hours (whichever comes first). The base warranty also includes 3-year/10,000-hour standard protection on major components. 

Three simple steps explain everything you need to know:

Step One: Full coverage on all Cummins industrial engines and branded components with unlimited hours during the first year of operation. This includes Cummins branded electrics such as alternators, starters, etc.

Step Two: Full coverage is extended for the second year, up to 2,000 hours of operation. Total hours are cumulative from the time the engine goes in service.

Step Three: Major components coverage including block, crankshaft, camshaft and rods on all products for the third year or up to 10,000 hours of operation.

Extended coverage is available with our Encompass Protection Plans with the flexibility to meet the needs of your agriculture operation.  Cummins Encompass has you covered, around the clock and around the globe. 

For complete warranty details, please see the US and Canadian warranty brochure (3381321) or International warranty brochure (3381322)

Getting every installation right - the first time - is as important to Cummins as it is to you. PowerMatch and Advisor help ensure that we get it right, every time.
PowerMatch.

Cummins partners with OEM engineers to test and match the power of the QSM engine to specific equipment models and applications. We use our advanced electronics to shape power curves and ratings to match the jobs your equipment will be doing, taking into account the working environment, load factors, ambient temperatures and operating modes. Then we optimize the engine's performance with other vehicle components, using Advisor.
Advisor.

Advisor software builds a virtual model to make sure every system (air, intake, exhaust, cooling) is integrated for optimum performance. It takes into account everything from load factors to operating climates to duty cycles - then identifies systems or components that could negatively impact reliability - listing alternatives that will deliver the performance you expect the first time - every time.