ISX (EPA 2004)

Power 385 - 565 hp
287 - 421 kW

Torque 1450 - 1850 lb-ft
1966 - 2508 N•m

Applications

Euro Truck & Bus Heavy-Duty Truck Motorhome & RV Engines Transit Bus

Overview:

Cummins ISX sets a new performance standard for diesels. Plus, it has been thoroughly tested and proven to meet Cummins rigorous standards for durability and dependability. At the same time, the ISX meets the latest emissions standards without expensive aftertreatment or special fuels. The bottom line: You win. With its unique dual overhead cam design and Variable Geometry Turbocharger, the ISX is clearly ahead of competitive engines.

Impressive Acceleration
The ISX delivers the best mpg of any engine in its class, even better than our own N14 Plus engine. Based on real world experience, the ISX has the highest fuel economy of any high-horsepower engine meeting the 2.5-gram NOx+NMHC emissions requirement.

Improved Braking
Another benefit of this new design is improved braking from the standard Intebrake™ system. The engine brake is more effective over the entire operating range by as much as 100 hp, generating a maximum braking horsepower of over 600 hp. Not only does this improve driver control on steep downgrades, it also helps reduce service brake use and increase maintenance intervals.

Maximum Horsepower	385-565 bhp
Peak Torque	1450-1850 lb-ft
Governed Speed	2000 rpm
Clutch Engagement Torque	1000 lb-ft
Number of Cylinders	6
Bore and Stroke	5.39 x 6.65 in (137 x 169 mm)
Engine Displacement	912 cu in (14.9 L)
Compression Ratio	17:1
Operating Cycles	4 (4)
Oil System Capacity	14 US gal (53 L)
Net Weight with Std Accessories	2,940 lb (1,334 kg)

Engine Model	Advertised hp	Peak Torque ft-lbs @ RPM	Governed Speed RPM
ISX-525	525	1650 @ 1200	2000
ISX-600	600	1850 @ 1200	2000

	Light Duty	Normal Duty	Severe Service
Oil & Filter	35,000 mi	25,000 mi	15,000 mi
Fuel Filter	25,000 mi	25,000 mi	25,000 mi
Coolant Filter	50,000 mi	50,000 mi	50,000 mi
Valve Adjustment	500,000 mi	500,000 mi	500,000 mi
VG Actuator Filter	250,000 mi inspection	250,000 mi inspection	250,000 mi inspection

* Oil drain intervals can be extended when using Valvoline Premium Blue® oil.

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