Navistar T444E engine

Last updated
Navistar International logo.svg T444E
Overview
Manufacturer Navistar International
Also called Ford 7.3L Power Stroke
Production1994–2003
Layout
Configuration 90° V8
Displacement 444 cu in (7.3 L)
Cylinder bore 4.11 in (104.4 mm)
Piston stroke 4.18 in (106.2 mm)
Cylinder block materialCast iron
Cylinder head materialCast iron
Valvetrain OHV, two valves per cylinder
Compression ratio 17.5:1
Combustion
Turbocharger Wastegate
Fuel system Direct injection and hydraulic electronic unit injection
Fuel type Diesel
Cooling system Water-cooled
Output
Power output 175–275 hp (130–205 kW)
Torque output 425–525 lb⋅ft (576–712 N⋅m)
Dimensions
Dry weight 920 lb (417 kg)
Chronology
Predecessor International Harvester IDI
Successor Navistar VT365
Ford 6.0L Power Stroke

The Navistar T444E is a diesel V8 engine manufactured by Navistar International Corporation. In its use in Ford Motor Company trucks, vans, and school buses, it is the first of the Power Stroke family of diesel engines. The T444E was manufactured from 1994 to 2003, replacing the 7.3L IDI V8 designed by International Harvester. As a result of its inability to meet California noise regulations, the T444E was discontinued midway through the 2003 model year, replaced by the all-new 6.0L VT365. In total, nearly 2 million 7.3L Power Stroke V8s were manufactured for Ford at Navistar's Indianapolis, Indiana, plant before switching to the 6.0L.

The T444E used a 4.11 in × 4.18 in (104.4 mm × 106.2 mm) bore and stroke. Power output was 210 hp (157 kW) at 3000 rpm and 425 lb⋅ft (576 N⋅m) at 1600 rpm for 1994-1997. Power was increased in 1998 to 235 hp (175 kW) at 2600 rpm and 500 lb⋅ft (678 N⋅m) of torque at 1600 rpm. In 2000, power was once again upped to 250 hp (186 kW) at 2700 rpm with automatic transmission and 275 hp (205 kW) with manual transmission, and 525 lb⋅ft (712 N⋅m) of torque at 1600 rpm.


Applications:

Related Research Articles

<span class="mw-page-title-main">General Motors LS-based small-block engine</span> Family of V8 and V6 engines

The General Motors LS-based small-block engines are a family of V8 and V6 engines designed and manufactured by American automotive company General Motors. First introduced in 1997, the family is a continuation of the earlier first- and second-generation Chevrolet small-block engine, of which over 100 million have been produced altogether, and is also considered to be one of the most popular V8 engines ever. Spanning three generations, a new, sixth generation is expected to enter production soon. Various small-block V8s were and still are available as crate engines.

<span class="mw-page-title-main">Chevrolet small-block engine (first- and second-generation)</span> Car engine

The Chevrolet small-block engine is a series of gasoline-powered V8 automobile engines, produced by the Chevrolet division of General Motors between 1954 and 2003, using the same basic engine block. Referred to as a "small-block" for its size relative to the physically much larger Chevrolet big-block engines, the small block family spanned from 262 cu in (4.3 L) to 400 cu in (6.6 L) in displacement. Engineer Ed Cole is credited with leading the design for this engine. The engine block and cylinder heads were cast at Saginaw Metal Casting Operations in Saginaw, Michigan.

<span class="mw-page-title-main">Mazda diesel engines</span> Reciprocating internal combustion engine

Mazda has a long history of building its own diesel engines, with the exception of a few units that were built under license.

<span class="mw-page-title-main">Ford Essex V6 engine (Canadian)</span> Reciprocating internal combustion engine

The Essex V6 is a 90° V6 engine family built by the Ford Motor Company at the Essex Engine Plant in Windsor, Ontario, Canada. This engine is unrelated to Ford's British Essex V6. Introduced in 1982, versions of the Essex V6 engine family were used in subcompact through to large cars, vans, minivans, and some pickup trucks. The Essex V6 was last used in the 2008 regular-cab F-150, after which it was succeeded by a version of the Ford Cyclone engine. An industrial version of the engine was available until 2015.

<span class="mw-page-title-main">Ford Power Stroke engine</span> Reciprocating internal combustion engine

Power Stroke, also known as Powerstroke or PowerStroke, is the name used by a family of diesel engines for trucks produced by Ford Motor Company and Navistar International for Ford products since 1994. Along with its use in the Ford F-Series, applications include the Ford E-Series, Ford Excursion, and Ford LCF commercial truck. The name was also used for a diesel engine used in South American production of the Ford Ranger.

The Ford Motor Company produced straight-six engines from 1906 until 1908 and from 1941 until 2016. In 1906, the first Ford straight-six was introduced in the Model K. The next was introduced in the 1941 Ford. Ford continued producing straight-six engines for use in its North American vehicles until 1996, when they were discontinued in favor of more compact V6 designs.

<span class="mw-page-title-main">GMC V6 engine</span> Reciprocating internal combustion engine

The GMC V6 is a family of 60-degree V6 engines produced by the GMC division of General Motors from 1959 through 1974. It was developed into both gasoline and diesel versions, and produced in V8 and V12 derivatives. Examples of this engine family were found in pickup trucks, Suburbans, heavier trucks, and motor coaches.

<span class="mw-page-title-main">Navistar</span> American industrial company

Navistar, Inc. is an American holding company created in 1986 as the successor to International Harvester. Navistar operates as the owner of International-branded trucks and diesel engines. The company also produces buses under the IC Bus brand. On July 1, 2021, Navistar became a wholly owned subsidiary of Traton, and therefore part of the Volkswagen Group.

<span class="mw-page-title-main">Navistar VT engine</span> Reciprocating internal combustion engine

The Navistar VT engine family is a line of diesel engines that was produced by International Truck and Engine 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. Sharing many applications with the DT466 inline-6, the VT engines were used in medium-duty trucks and school bus chassis, competing against the Cummins B-series and the Mercedes-Benz MBE900 diesel engines. In 2007, both the VT and DT engines were rebranded under the MaxxForce brand name, with model designations related to their displacement.

<span class="mw-page-title-main">Ford Super Duty</span> Heavy-duty line of trucks manufactured by Ford

The Ford Super Duty is a series of heavy-duty pickup trucks produced by the Ford Motor Company since the 1999 model year. Slotted above the consumer-oriented Ford F-150, the Super Duty trucks are an expansion of the Ford F-Series range, from F-250 to the F-600. The F-250 through F-450 are offered as pickup trucks, while the F-350 through F-600 are offered as chassis cabs.

<span class="mw-page-title-main">Detroit Diesel V8 engine</span> Reciprocating internal combustion engine

The General Motors–Detroit Diesel V8 engine is a series of diesel V8 engines first introduced by General Motors for their C/K pickup trucks in 1982. Developed in collaboration with GM subsidiary Detroit Diesel, the engine family was produced by GM through 2002, when it was replaced by the new Duramax line. AM General's subsidiary General Engine Products (GEP) still produces a military variant of this engine for the HMMWV.

<span class="mw-page-title-main">Ford F-Series (medium-duty truck)</span> Medium-duty line of trucks manufactured by Ford

The medium-duty version of the Ford F-Series is a range of commercial trucks manufactured by Ford since 1948. Derived from the smaller F-Series pickup trucks, the medium-duty range is currently in its eighth generation. Initially slotted between the F-Series pickup trucks and the "Big Job" conventionals, later generations were slotted below the L-Series "Louisville" trucks; the last two generations are the largest vehicles produced by Ford since its exit from the heavy-truck segment.

<span class="mw-page-title-main">International Harvester IDI</span> Reciprocating internal combustion engine

The International Harvester IDI engine is a four-stroke diesel V8 engine used in International Harvester school buses, trucks, Ford F-Series pickups, and Ford E-Series vans from the 1983 to 1994 model years. The engine was built in two displacements: 420 cubic inches (6.9 L), which was used in Ford trucks from 1983 until 1987, and 444 cubic inches (7.3 L), which was used in Ford trucks from 1988 until 1994 and in 1993 and 1994 (turbocharged).

<span class="mw-page-title-main">Ford EcoBoost engine</span> Series of turbocharged, direct-injection gasoline engines

EcoBoost is a series of turbocharged, direct-injection gasoline engines produced by Ford and originally co-developed by FEV Inc.. EcoBoost engines are designed to deliver power and torque consistent with those of larger-displacement naturally aspirated engines, while achieving up to 20% better fuel efficiency and 15% fewer greenhouse emissions, according to Ford. The manufacturer sees the EcoBoost technology as less costly and more versatile than further developing or expanding the use of hybrid and diesel engine technologies. EcoBoost engines are broadly available across the Ford vehicle lineup.

<span class="mw-page-title-main">International S series (bus chassis)</span> Motor vehicle platform

The bus chassis variant of the International S series is a cowled bus chassis that was produced by International Harvester from 1979 to 2001. Produced primarily for school bus applications, the chassis was also produced for other applications, including commercial-use buses and cutaway-cab buses. In addition, the cowled chassis formed the basis for front-engine and rear-engine stripped chassis produced for bus applications.

<span class="mw-page-title-main">Ford F-Series (eighth generation)</span> Motor vehicle

The eighth generation of the Ford F-Series is a line of pickup trucks and light- to medium-duty commercial trucks produced by Ford from 1987 to 1991. While the 1980 cab and chassis was carried over to the new model, the 1987 model was more streamlined, and maintenance items were made simpler. The exterior was facelifted with new composite headlamps, a more aerodynamic front end, and circular fenders. Inside, the interior was given a complete redesign. Rear antilock brakes were now standard, the first pickup truck to boast this. For the first time, all models were produced with straight-sided Styleside beds; the Flareside bed was discontinued except for a small number of early 1987 models using leftover 1986 beds with new circular fenders. In 1991, Ford premiered the 9th gen taillights on the last year of the 8th generation.

<span class="mw-page-title-main">Ford F-Series (ninth generation)</span> Ninth generation of the Ford F-Series trucks

The ninth generation of the Ford F-Series is a lineup of trucks that were produced by Ford from the 1992 to 1998 model years. The final generation of the F-Series to include a complete range of trucks from a half-ton F-150 pickup truck to a medium-duty F-800 commercial truck, this is the third generation of the F-Series body and chassis introduced for 1980.

The Ford Godzilla engine is a family of V8 engines offered by the Ford Motor Company. The engines are intended to replace the Modular V10 engine and the Boss V8 engine in many uses. The engine, first introduced with a displacement of 7.3L was first used with Ford Super Duty trucks starting with the 2020 model year and was later added to the Ford E-Series for the 2021 model year. It is also available as a crate engine. A smaller displacement 6.8L was introduced in 2023. Exterior dimensions are smaller than the 385-series 460 engine, and slightly larger than those of the 351 Windsor engine.

<span class="mw-page-title-main">Chevrolet Silverado (first generation)</span> GMT800 trucks by General Motors

The first generation of the Chevrolet Silverado is a series of trucks manufactured by General Motors from 1998 until 2007 under the Chevrolet brand and also as the GMC Sierra. Built on the new GMT800 platform, the Silverado/Sierra 1500 and 2500 pickup trucks were first released in August 1998 as 1999 models. The "classic" light-duty GMT400 C/K trucks were kept in production alongside the new types for the first model year, while the heavy-duty GMT400 pickups were continued until 2000, with the new GMT800 Silverado/Sierra HD released in model year 2001. A 3500 model was added later for 2001, with the introduction of the HD moniker. A refresh for 2003 models was introduced in 2002, bringing slight design changes and an upgrade to the audio and HVAC controls. The 2007 GMT800 trucks, built after the new GMT900 had gone on sale, used the name Classic to denote the difference between the two generations.