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The 7.3 L DI Power Stroke was in production until the first quarter of model year 2003, when it was replaced by the 6.0 L. Nearly 2 million 7.3 L DI Power Stroke engines were produced in International's Indianapolis plant. [8] The 7.3 L DI Power Stroke engine is commonly referred to as one of the best engines that International produced. [6] [7]
First, the head bolts simply weren't numerous or strong enough for the diesel's high compression ratio, so they started blowing head gaskets. Second big problem: GM's cost-cutters decided not to fit a water separator. Unlike gasoline, diesel fuel is subject to water condensation – hence the need for a water separator.
The Navistar DT (Diesel Turbocharged or Diesel Turbo) engine family is a line of mid-range inline-6 diesel engines.With horsepower ratings ranging from 170 hp (130 kW) to 350 hp (260 kW), the Navistar DT engines are used primarily in medium-duty truck and bus applications such as school buses, although some versions have been developed for heavy-duty regional-haul and severe-service applications.
The Navistar VT engine family is a line of diesel engines that was produced by International Truck and Engine (Navistar International) from 2003 to 2016.Developed as the replacement for the T444E V8, the VT V6 and V8 diesels were the smallest diesel engines used in Navistar vehicles, slotted below the DT inline-6 engine family.
The L5P Duramax is the latest version of the Duramax V8 diesel engine.(engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm.
The 3.9-liter 4B/4BT/4BTA Cummins is categorized under the B Engine family alongside the 5.9-liter 6B/6BT/6BTA Cummins diesel engines. The 3.9 is an inline four-cylinder , either naturally aspirated (4B) or turbodiesel (4BT/4BTA), which was popular for many step van applications including bread vans and other commercial vehicles.
This led directly to the production of the 6.9-liter IDI diesel. The engine is developed as a low cost, light weight diesel that fit where a V8 gas engine would, to try to convert their gas engine customers to diesel and to sell to Ford for use in F-Series light duty trucks and E-Series/Econoline vans.
For 1993, a turbocharger became available on the 7.3L "IDI" diesel. In the middle of the 1994 model year (referred to as "1994.5"), International replaced the IDI with the new 7.3L T444E turbo diesel, the first engine branded as a Ford Power Stroke. While sharing its predecessor's displacement, the engine was an entirely new design.