ISX12 for Heavy-Duty Truck (EPA 2010)

Overview

ISX12 for Heavy-Duty Truck (EPA 2010)
ISX12. Better. From Morning To Night.

Cummins ISX12 builds on the legacy of the ISM and proven technology of the ISX15 to deliver better fuel economy, performance, reliability and durability. It has more horsepower and more torque, plus stronger acceleration – all in a compact design. It achieves near-zero emissions and reduces noise output. So no matter what kind of equipment you run it in, the ISX12 has the power to accomplish every task better. From morning to night.

Optimized calibrations have resulted in significant fuel economy gains for the ISX12. Fuel economy has improved up to 5% in regional haul applications and up to 12% in vocational applications versus the ISX11.9.

cummins-brochure-download

The ISX12 is an exceptional choice for vocational applications, with a high power-to-weight ratio and 800 lb-ft (1085 N•m) of clutch engagement torque. Eight vocational and five refuse ratings are available, along with integrated Rear Engine Power Take-Off (REPTO), Front Engine Power Take-Off (FEPTO) and a choice of hydraulic drive options. This combination of power and flexibility is an ideal choice for rear- and front-pouring mixers as well as dump trucks and refuse haulers.

The ISX12 has the power range to meet the needs of regional hauling and LTL distribution operations. Standard ratings range from 310 hp to 425 hp (231-317 kW). SmartTorque ratings unleash higher torque in the two top gears so that drivers can climb steep hills with fewer downshifts.

Cummins is the only engine manufacturer to design and develop, manufacture and support every component from the air intake to the exhaust aftertreatment in a totally integrated system.

The XPI fuel system is capable of the highest injection pressures in the industry, with a common-rail design that delivers strong performance independent of engine speed. The integrated system of the ISX12 also includes a VGT™ Turbocharger custom-built by Cummins Turbo Technologies.

The Cummins Aftertreatment System on the ISX12 combines a proprietary Cummins Particulate Filter with our Selective Catalytic Reduction (SCR) technology, functioning as a single unit. Designing and building the package in-house allows Cummins to calibrate the engine for optimum performance and near-zero emissions. The high efficiency of the aftertreatment frees the engine to generate higher horsepower while also saving fuel. Improved fuel economy not only lowers fuel consumption – it also reduces greenhouse gas (GHG) emissions.

And that’s just the start of all the features the ISX12 has to offer.  Every element has been designed and manufactured to optimize performance and minimize maintenance for superior driveability.

All backed by the best customer support in the business.

Considering a Cummins engine purchase? For more information including pricing and additional technical information, please contact your Cummins representative. If you need help finding a representative, the Cummins Sales and Service Locator tool can help.

PowerSpec

Cummins PowerSpec is an electronic tool that makes it possible to tailor the operation of Cummins engines in every on-highway application.

Available for: On-Highway, Heavy-Duty Truck

See ISX PowerSpec Engine Features

Specifications

 
Advertised Horsepower¹ 310-425 hp  231-317 kW 
Peak Torque  1150-1650 lb-ft   1559-2237 N•m
Governed Speed  2100 rpm
Clutch Engagement Torque 800 lb-ft  1085 N•m 
Number of Cylinders  6
Oil System Capacity  11 U.S. gallons  45.4 liters 
System Weight  2,888 lb  1,310 kg 
     Engine (Dry)  2,666 lb  1,209 kg 
     Aftertreatment System*  222 lb  101 kg 
*Increase over standard muffler and does not include chassis OEM-supplied components
1Ratings by application vary.

Engine Finder Specifications

Markets
Certification Level EPA 2010
Power 320 - 425 hp / 239 - 317 kW
Torque 1150 - 1650 lb-ft / 1559 - 2237 N•m

Ratings

Engine Model  Advertised Horsepower (kW)  Peak Torque lb-ft (N•m) @ rpm 
ISX12 425  425 (317)  1650 (2237) @ 1200 
ISX12 400 400 (298)  1650 (2237) @ 1200  
ISX12 370 370 (276)  1450 (1966) @ 1200 
ISX12 370 370 (276)  1350 (1695) @ 1200 
ISX12 350 350 (261)  1350 (1695) @ 1200 
ISX12 330 330 (246)  1350 (1830) @ 1200 
ISX12 330 330 (246)  1250 (1695) @ 1200 
ISX12 310 310 (231)  1150 (1559) @ 1200 
SmartTorque Ratings 
ISX12 425 ST 425 (317)  1450/1650 (1966/2237) @ 1200 
ISX12 400 ST 400 (298)  1450/1650 (1966/2237) @ 1200 
ISX12 350 ST 350 (261)  1350/1450 (1830/1966) @ 1200 
ISX12 330 ST 330 (246)  1250/1350 (1695/1830) @ 1200 
Vocational Ratings 
ISX12 425V 425 (317)  1650 (2237) @ 1200 
ISX12 425V 425 (317)  1550 (2102) @ 1200 
ISX12 400V 400 (298)  1650 (2237) @ 1200 
ISX12 385V* 385 (287)  1450 (1966) @ 1200 
ISX12 385V 385 (287)  1350 (1830) @ 1200 
ISX12 350V 350 (261)  1450 (1966) @ 1200 
ISX12 350V 350 (261)  1350 (1830) @ 1200 
ISX12 320V 320 (239)  1150 (1559) @ 1200 
* Oil and Gas Rating
Refuse Ratings 
ISX12 385R 385 (287)  1450 (1559) @ 1200 
ISX12 385R  385 (287)  1350 (1559) @ 1200
ISX12 350R  350 (261)  1450 (1559) @ 1200 
ISX12 350R  350 (261) 1350 (1559) @ 1200 
ISX12 320R  320 (239) 1150 (1559) @ 1200

Features

XPI Fuel System - Delivers a precise quantity of fuel at ultra-high pressures.  This, together with more robust electronic engine controls, enables multiple injection events per cycle. 

Compact Design - Compact and powerful, with plenty of torque to pull every load while delivering optimum fuel economy.  It shares many major components with the ISX15, so it’s strong enough to handle virtually any application.

VGT™ Turbocharger - Enhanced response and control with electric actuation for infinite adjustment, providing exact boost at any rpm. Sliding-nozzle design increases reliability and durability.

Cooled EGR - Next-generation system lowers combustion temperatures for reduced emissions and optimized fuel economy.

Fully Integrated Electronic Controls – A single, higher-capacity Electronic Control Module (ECM) controls everything from air intake to exhaust aftertreatment for peak performance and near-zero emissions.

Cummins Aftertreatment System - The proven Cummins Particulate Filter reduces particulate matter by over 90%.  In 2010 it is combined with Cummins Selective Catalytic Reduction (SCR) to meet emission standards while maintaining best-in-class performance, reliability and durability.

Maintenance

 
Duty Cycles*  Light   Normal  Severe 
Oil and Filter 35,000 mi
56,000 km 
25,000 mi
40,000 km 
15,000 mi
24,000 km 
Fuel Filter 25,000 mi
40,000 km 
25,000 mi
40,000 km
25,000 mi
40,000 km 
Coolant Filter**  50,000 mi
80,000 km 
50,000 mi
80,000 km 
50,000 mi
80,000 km 
Valve Adjustment  250,000 mi
400,000 km 
250,000 mi
400,000 km 
250,000 mi
400,000 km 
Coalescing Filter 

150,000 mi (240,000 km)

Hydrocarbon Doser Injector Cleaning 

150,000 mi (240,000 km) 

DEF Filter 

200,000 mi (320,000 km) 

Particulate Filter Cleaning

 200,000 mi (320,000 km)

*Light Duty ≥ 7 mpg, Normal Duty = 6-7 mpg, Severe Duty ≤ 6 mpg
**With appropriate filter

For complete maintenance information, please consult your Owner’s Manual or Operations and Maintenance Manual, available on Cummins Quickserve Online.

Brochures Available

Title Bulletin Number Request View  
Cummins ISX12 For Vocational And Day Cab Trucks Spec Sheet 4971357 Request View  Download
Cummins ISX12 For Vocational And Day Cab Trucks Spec Sheet - French 4971364 Request View  Download
Cummins Overhaul Program Flyer 2878827 Request View  Download
Cummins Overhaul Program Flyer - French 2878937 Request View  Download
Cummins Overhaul Program Flyer - Spanish 5410631 Request View  Download
Encore Xtra Extended Coverage Folder 5410594 View  Download
Encore Xtra Extended Coverage For North American Dealers Brochure 5410591 Request View  Download
Encore Xtra Extended Coverage For North American Dealers Brochure - French 5410622 Request View  Download
Encore Xtra Trifold Brochure 2878926 Request View  Download
Encore Xtra Trifold Brochure - French 5410602 Request View  Download
North American Truck Coverages For ISX15 And ISX12 Engines Brochure - EPA 2010 4971358 View  Download
North American Truck Coverages For ISX15 And ISX12 Engines Brochure - EPA 2010 (French) 4971365 Request View  Download
ReCon DPF Flyer 2878897 Request View  Download
ReCon DPF Flyer - French 5410632 View  Download
ReCon DPF Flyer - Spanish 5410633 Request View  Download