The Cummins 5.9 liter 12 valve inline 6 cylinder diesel was introduced in 1984 and is a powerful engine. The torque of this motor is so great that its pulling power and quick acceleration even under heavy load are very good. The company continued to produce this engine until 2007.

Although initially this engine was used for agricultural purposes, it became a part of the Cummins B-series in 1989. Since 1989, the company began producing engines that can be properly used in vehicles.

What’s amazing about the 5.9-litre turbocharged inline 6-cylinder engine is that it can run with 40% fewer active parts than its V8 counterpart. Therefore, it is a more efficient engine and the chances of breakdowns are greatly reduced. With its 4.02-inch bore and 4.72-inch stroke, its compression ratio is 17:1, giving you just 160 horsepower and 400 pound-feet of torque. The injection pump used was a Bosch VE and in 1994 this injection pump was replaced by a Bosch P7100.

Since this engine was quite durable, the car manufacturers that used it did not insist on any changes to its basic structure during the years between 1989 and 1993. There were also no changes in power. In 1994, the horsepower was increased to 175 and the torque of the manual transmission version was 420.

Looking back at the production history of these engines, Cummins considered the launch of these engines a gamble because for the first time, they were just entering the smaller equipment segment. This decision paid big dividends, and today 20 percent of the company’s production line consists of smaller engines. The use of the 5.9 B series engines in Dodge Ram trucks took about four years of discussion. Of course, this was not the first time that Dodge had used diesel engines. During the 1970s, they used non-turbo diesel engines from Mitsubishi.

Cummins B-series engines were also called “one liter per cylinder” engines. In addition to being used in the Dodge Ram, these 5.9-liter 6-cylinder engines were used in buses, military vehicles, construction equipment, and also in the field of marine operations.

Originally designed by both Cummins and Case Corporation, also known as the Consolidated Diesel Corporation, this engine was first used in the Dodge Ram in 1989. These Cummins engines were cleverly backed by a turbocharger. After 1989, even Dennis Dart trucks started using this engine. This engine was patronized even by manufacturers of light to mid-size commercial trucks and buses.

This engine became an excellent alternative to V8 gasoline engines because it could also produce double the torque at low engine speeds. Fuel consumption was also much higher than its gasoline counterparts. Since direct injection was used, there was no need for glow plugs to start the engine in cold weather conditions.

In the 1991 year, intercoolers were also added. In 1994, when Dodge redesigned its Ram vehicle, the engines were suitably modified as well. Horsepower remained 160 and torque 400 pound-feet when the engine was equipped with the 47RH automatic transmission. But, horsepower increased to 175 horsepower with 420 pound-feet of torque, when the NV4500 manual transmission was optioned.

The 1996-1998 engine produced an output of 180 horsepower and 420 pound-feet of torque, when using a 47RE automatic transmission. Once again, horsepower increased to 215 and torque to 440 pound-feet, when using an NV4500 manual transmission.

If you want a remanufactured 6 cylinder 5.9 Cummins diesel pusher motorhome with ID 44816094, you can definitely get a competent dealer if you search patiently. After all, the world is a finite place. You want to make sure you choose a dealer who can guide you in choosing the right engine. However, it’s best to have your own mechanic inspect the engine before you buy it.