International WorkStar Overview Type Convential cab Manufacturer Production 2008-2017 Assembly Body and chassis Class 7-9 Severe Service Powertrain Various inline 6 Diesel engines 6 speed manual 6 speed automatic 13 speed manual 18 speed manual Chronology Predecessor 7400 and 7600 Series Successor The International WorkStar is a line of severe duty trucks made. The WorkStar is the successor to the 7400 and 7600 series trucks produced by International. Starting in 2008 the 'thousand series' name was dropped in favor of the WorkStar. This change was reflected in the physical construction of the truck in the form of a new hood and grill along with increased Maxxforce Engine options. Contents. Models The WorkStar is commonly custom-built, and has many different layouts.

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All models are available as 4x2, the 7300-7500 have all-wheel drive 4x4 models. The 7400-7600 are available with both 6x4 and 6x6 tandems, and the 7600 can have an unusual 8x6 layout, with a three driven axle 'tridem'.

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Most models can have either forward or set-back front axles. Electrical systems have become very complex, both for engine control and monitoring the chassis. Controls for (PTOs), body operations, snowplow and other types of auxiliary lighting can be factory installed. Cabs are available in standard, extended, and crew types on all models. Made of galvanized steel, they can have heated windshield, mirrors, air-conditioning and many interior options.

Selected 2016 Models (not all are shown.) Model Max. Front GAWR Max. Rear GAWR Max.

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GVWR Engine Trans 7300 4x2 10,000 lb (4,500 kg) 17,500 lb (7,900 kg) 27,500 lb (12,500 kg) ISB6.7 6M, 6A 7400 6x4 20,000 lb (9,100 kg) 46,000 lb (21,000 kg) 60,000 lb (27,000 kg) N9 13M, A 7500 6x4 22,000 lb (10,000 kg) 52,000 lb (24,000 kg) 60,000 lb (27,000 kg) ISL9 N10 18M, A 7600 8x6 22,000 lb (10,000 kg) 69,000 lb (31,000 kg) 76,000 lb (34,000 kg) N13 18M, A Powertrain In 2014 the WorkStar is available with 4 diesel engines. The lowest rated is the Maxxforce DT, a 466 cu in (7.6 L) inline 6 with 215 hp (160 kW) at 2200 rpm. The highest rated is the N13, a 758 cu in (12.4 L) inline 6 with up to 475 hp (354 kW) at 1850 rpm. Eaton/Fuller offers manual transmissions from 6 to 18 speeds, and a self-shifting manual. Allison offeres three automatic transmissions.

2016 Engines Model Displacement Type Power Torque Cum ISB6.7 408 cu in (6.7 l) Mid 200 hp (150 kW) 520 lb⋅ft (710 N⋅m) Cum ISL9 543 cu in (8.9 l) HD 380 hp (280 kW) 1,250 lb⋅ft (1,690 N⋅m) Nav N9 570 cu in (9.3 l) Mid 330 hp (250 kW) 950 lb⋅ft (1,290 N⋅m) Nav 10 570 cu in (9.3 l) HD 370 hp (280 kW) 1,250 lb⋅ft (1,690 N⋅m) Nav 13 758 cu in (12.4 l) HD 475 hp (354 kW) 1,250 lb⋅ft (1,690 N⋅m) WorkStar applications Construction The primary use of the WorkStar is as a heavy 6x4 dump truck with a GVWR of approximately 50,000 lb (23,000 kg). With all the upgrades possible, it can be used as a concrete mixer, where the heavy duty front drive axle is often used. It can also be a semi-tractor, pulling dump or lowboy trailers.