The International 8000 Series, also known as the International TranStar line, is a regional-haul tractor

Tractor unit

A tractor unit, prime mover , road tractor, or traction unit is a heavy-duty commercial vehicle within the large goods vehicle category, usually with a large displacement diesel engine, and several axles. The tractor unit serves as a method of moving trailers...

. It is available in two variants. They differ in engine

Engine

An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines burn a fuel to create heat which is then used to create motion...

s, drivetrains

Powertrain

In a motor vehicle, the term powertrain or powerplant refers to the group of components that generate power and deliver it to the road surface, water, or air. This includes the engine, transmission, drive shafts, differentials, and the final drive...

, and axle configurations.

8500

The 8500 model has a wheelbase from 128 to 201 in (3.3 to 5.1 m), is powered by an International HT 570. Its front axle capacity is 10000 lb (4,535.9 kg) or 12000 lb (5,443.1 kg) Rear single axle has a capacity of 23000 pounds (10,432.6 kg) Rear tandem axle has a capacity of 40000 lb (18,143.7 kg) Both axles are either Meritor or Dana Spicer and are available with a driver-controlled locking differential. Applications include beverage, city tractor, and regional haul.

8600

The heavier-duty 8600 model has a wheelbase from 128 to 315 in (3.3 to 8 m), is powered by either a Caterpillar

Caterpillar Inc.

Caterpillar Inc. , also known as "CAT", designs, manufactures, markets and sells machinery and engines and sells financial products and insurance to customers via a worldwide dealer network. Caterpillar is the world's largest manufacturer of construction and mining equipment, diesel and natural gas...

 or Cummins

Cummins

Cummins Inc. is a Fortune 500 corporation that designs, manufactures, distributes and services engines and related technologies, including fuel systems, controls, air handling, filtration, emission control and electrical power generation systems...

 diesel. Its front axle is either a Meritor with a capacity of 10000 lb (4,535.9 kg), 12000 lb (5,443.1 kg), or 13200 lb (5,987.4 kg) or a Dana Spicer with a capacity of 10000 lb (4,535.9 kg), 12000 lb (5,443.1 kg), 13200 lb (5,987.4 kg), or 14000 lb (6,350.3 kg). Rear single axle capacity is 23000 lb (10,432.6 kg). Rear tandem axle capacity is 40000 lb (18,143.7 kg). Both axles are either Meritor or Dana Spicer and are available with a driver-controlled locking differential. Applications include beverage, city tractor, liquid or dry bulk, and regional haul.

Historical Variants

The first Transtar was the 1965 CO-4000, which replaced the DCO-400 Emeryville. Another early model was the Unistar, or Universal four wheel drive

Four Wheel Drive

The Four Wheel Drive Auto Company, more often known as Four Wheel Drive or just FWD, was founded in 1909 in Clintonville, Wisconsin, as the Badger Four-Wheel Drive Auto Company by Otto Zachow and William Besserdich.-History:...

 with no transfer case

Transfer case

A transfer case is a part of a four-wheel-drive system found in four-wheel-drive and all-wheel-drive vehicles. The transfer case is connected to the transmission and also to the front and rear axles by means of drive shafts...

. By the early 1970s, the company produced the larger CO-F4070A and 4090A.

The Transtar name was used for the Transtar 4300 which was in concurrent production with the Transtar II cabover in the 1970s.

8500

• • International HT 570 High Torque (295 hp/950 lbft to 310 hp/1050 lb·ft)
  • Fuller - 10 speed manual, Spicer - 7 speed manual, Allison - 5 Speed / 6 speed automatic

8600

• • Caterpillar
    Caterpillar Inc.
    Caterpillar Inc. , also known as "CAT", designs, manufactures, markets and sells machinery and engines and sells financial products and insurance to customers via a worldwide dealer network. Caterpillar is the world's largest manufacturer of construction and mining equipment, diesel and natural gas...
    
    
  • Cummins ISM
    Cummins M Series engine
    The Cummins M Series engine is a straight six diesel engine designed and produced by Cummins. It displaces . Introduced as the M11 in 1994, it was built on the previous L10 engine .In 1996, Cummins added electronic controls to improve efficiency...
    
    320 hp/1150 lb·ft to 425 hp/1550 lb·ft

Note: References for this section are the same as for Variants

External links

• International Trucks
• Maxxforce Engines
• Caterpillar On-Highway Engines
• Cummins On-Highway Engines
• Fontaine Fifth Wheels