International fires up three I-6 diesels

International Truck and Engine
Building on the VT 365 V-8 it introduced last year, International Truck and Engine rolled out three new in-line six-cylinder diesels for its 2004-model 4000, 7000, and 8500 Series trucks.

The International DT 466 (pictured), DT 570, and HT 570 engines combine the company’s EVRT variable turbocharger and a newly designed electro-hydraulic fuel system called G2 to optimize boost across the entire operating range. G2 is a common rail design that involves no high-pressure external lines, eliminating the potential for leaks and rust. A new digital spool valve for metering fuel is smaller, lighter, and provides better throttle response.

The International DT 466 engine now provides 210 to 300 horsepower and 520 to 860 foot-pounds of torque; the DT 570 engine provides 285 to 330 horsepower and 800 to 950 foot-pounds of torque, and the HT 570 engine provides 295 to 340 horsepower and 950 to 1,150 foot pounds of torque. The higher ratings should make the International 7000 series and 8500 more productive and competitive for heavy-duty and high-mileage applications.

Adding to the engines’ appeal is a new one-piece, high-pressure oil rail that substantially reduces the potential for leaks. The new rail is housed under the cylinder head cover on top of the injectors, holding down clamping force to further minimize the potential for leaks. The new rail design also serves as a high-pressure oil source to operate the engine brake.

An integrated fuel filter yields double the life of current fuel filters, when run with known quality fuel. Top-mounted fuel filters provide easier access to vital engine parts, unlike a spin-off filter. The filter has a high-efficiency fuel primer and synthetic media, so you won’t have the disposal issues associated with canister-style filters. An integrated fuel/water separator has a standard electronic water-in-fuel sensor. An optional electronic fuel restriction indicator and 300-watt fuel heater are optional.


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